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Class Number: 411 Class Title: EXPANDED, THREADED, DRIVEN, HEADED, TOOL-DEFORMED, OR LOCKED-THREADED FASTENER Subclass Subclass Number Title 1 TORQUE RESPONSIVE NUT OR BOLT DRIVING CONNECTION 2 .Frangible connection 3 ..Between concentric elements 4 ...Shear pin connecting means 5 ...Axially displaced 6 .Resilient connection 7 ..Ratchet 8 WITH MEANS TO INDICATE APPLICATION OF PREDETERMINED STRESS-STRAIN 9 .Axially deformable member or portion 10 ..Deformable washer 11 ...Resilient 12 ....Coil spring 13 .Color indicator 14 .Including gauge means 15 HAVING SEPARATE EXPANDER MEANS 16 .Helical anchor 17 ..Mates with mandrel thread 18 ..With wedge-shaped expander 19 .Fluent pressure actuated 20 ..Explosive 21 .Having securing element projecting through aperture in sleeve 22 ..Deformable element 23 ...Flowable mass 24 .Oppositely acting double wedge expander means 25 ..Outwardly moving 26 ..Both wedges provided with thread cooperating means 27 ..Having rotation preventing means 28 ...Groove and follower 29 .With hole forming means 30 ..Formed on expansible sleeve 31 ...Serrated end 32 .Plural expansible segments or sections 33 ..Identical segments 34 .Bulged by axially contracting ends 35 ..Having wedge-shaped section acting in slot 36 ..Twistable sleeve 37 ..Bulged portion having additional gripping means 38 ..Bulged portion including bend line or reduced section 39 .Frangible member 40 ..Frangibly connected expander 41 ...Projecting outwardly from head 42 ..Sleeve including weakened portion 43 ..Frangible mandrel 44 .Including sleeve and tapered expander 45 ..And means to captively retain expander 46 ...Follower captive within groove 47 ...Bridge-type retainer 48 ...Tongue-type retainer 49 ..Relative rotation preventing means 50 ...Guide and followerr 51 ....Splines 52 ....Follower defined by corners of polygonal element 53 ....Expander type 54 ..Expansible element moved relative to stationary expander 55 ..Expander threadedly engaged by mover 56 ..Stepped expander 57 ..Slotted sleeve 58 ...Both ends slotted 59 ...Slot spaced from ends 60 ...Throughout longitudinal extent of sleeve 61 ....Folded blank type 62 ....Slot angularly related to sleeve axis 63 ..Plural-sectioned sleeve 64 ...Having section retainer 65 ....Ring or sleeve type 66 .....Destructible 67 ....Bight type 68 ....Tongue and groove 69 ..Expander or sleeve extruded during expansion 70 ..Expander having integral pull stem 71 ..Sleeve having external gripping means 72 ...Circumferential rib 73 ....And longitudinal rib 74 ...Struck from sleeve 75 .Relatively sliding wedge surfaces 76 ..Wedge received in transverse slot in holding device or anchor 77 ...Double-faced wedge 78 ..Having wedge retainer means 79 ..Wedge surfaces act in single lateral direction 80 ..Including discrete activating means for wedge 81 THREADED FASTENER AND MEANS FOR RESTRICTING ROTATION THEREOF RELATIVE TO COACTING SUBSTRUCTURE 82 .Including settable material 83 .Including movable, separable, or nondistortably connected restricting member 84 ..Prefabricated assembly comprising strip or sheet member carrying plural, similar fasteners 85 ...Including element for holding fasteners against separation from member 86 ..Including a series of elements, one element restricting two fasteners of a plurality, and the remainder each restricting one fastener 87 ..Elongate member extending between and interlocking plural bolts or nuts 88 ...Member engages inwardly facing surface and a flat side of bolt head or nut 89 ..Member extending between plural fasteners and restricting the rotation thereof in one direction more than the other (e.g., pawl and ratchet) 90 ..Member extending between and engaging flat formed on side of each of a plurality of bolts or nuts (e.g., side lock) 91 ...And element on opposite face of substructure restricting rotation of a cooperating nut or bolt 92 ...Having plural openings or notches engaging a bolt or nut on two sides 93 ....Having plural parts, one of which engages the inwardly facing surface of a bolt head or nut 94 .....Special fishplate engaging inwardly facing surfacee 95 .....Elastically or plastically deformable part 96 ....Having plural parts, one comprising a keeper 97 ....Unitary member, deformable in whole or in part 98 ...And engaging the inwardly facing surface of the bolt heads or nuts 99 ...Including separable keeper for member 100 ...Including element spacing member from substructure 101 ..Member engages the inwardly facing surface of a plurality of bolt heads or nuts 102 ..Series of elements, each restricting a single fastener, cooperating to restrict a series of fasteners 103 ..Member preassembled with substructure at through-passage or recess for holding single bolt or nut in coaxial relation therewith 104 ...Through-passage or recess having laterally extending entry for inserting member and nut 105 ...And a second substructure and means for capturing a complementary nut or bolt thereto 106 ...Having means for coupling a bolt to a nut (e.g., thread lock) 107 ...Member anchors bolt in substructure with threaded portion exposed (e.g., stud bolt) 108 ...Nut-encompassing sleeve member engaged within through-passage or recess 109 ...Locking ring coaxially related to an elongated, externally threaded nut 110 ...Member comprises a longitudinal key 111 ...Member includes elastically or plastically deformable portion 112 ....Having elastically deformable portion for attaching member to substructure 113 ....Plastically deformable portion 114 ..Recessed or toothed member receiving movable pawl carried by bolt head or nut 115 ...Having discrete, reciprocably movable pawl 116 ..Fastener, or coaxial adjunct therefor, having sidewardly facing flat or formation engaged by portion of member (e.g., side lock) 117 ...Adjunct carried flat or formaton 118 ...And thread lock coupling complementary fasteners 119 ...Member having opening or notch engaging a bolt head or nut on two sides 120 ....And element maintaining member in operative engagement with bolt head or nut 121 ....Member elastically or plastically deformable for attaching it to bolt head or nut 122 ...Member having portion (e.g., tab) deformable in situ into engagement with flat or formation 123 ....And having specific structure to coact with substructure 124 .....Projection on member and coacting formation in substructure 125 ...Sheet metal member having resilient pawl distorted therefrom 126 ....Member includes means which attempt to penetrate substructure 127 ....Member abuts coacting part on substructure 128 ...Member, or portion thereof, comprises movable pawl 129 ...Member engages inwardly facing surface of bolt head or nut 130 ....And is formed from plural, cooperating partss 131 ....And has specific structure to coact with substructure 132 ..Member or portion thereof located between substructure and inwardly facing surface of bolt head or nut 133 ...Member fixed to bolt shank, and member or bolt fixed to substructure 134 ...Means holding member to bolt, nut or substructure prior to use 135 ....By discrete element 136 ...Member comprises looplike element (e.g., washer) interlocked with additional element, one of them engaging substructure or surface in other than planar, face to face contact 137 ....Two looplike elements interlocked by laterally introduced key 138 ....Pawl element, movably carried by looplike element, coacts with ratchet on surface 139 ....Laterally introduced key locks looplike element to surface 140 ...Elongate member moves in longitudinally extending opening in bolt head or nut to enter substructure 141 ...Locking dog or pawl carried by bolt head or nut and engaging substructure 142 ...Key introduced laterally at juncture of surface and substructure 143 ...Formations on either member or surface, and cooperative, restricting means on the other 144 ....Formations on surface, means on member, one of which presents a sharp edged configuration 145 .....Formations comprise ramplike teeth, means comprises a movable pawl 146 ......And substructure accommodation for member portion 147 ...Member comprises washer formed as closed loop or apertured plate or as split ring 148 ....Engaging side wall of counterbore in substructure 149 ....Plural, axially adjacent washers, or plural part washer 150 .....Having one washer, or washer part, of a more yieldable nature than another washer, or part 151 ....Split ring having radially outwardly extending end 152 ....Ends of split ring overlap in stressed condition 153 .....Overlap of at least 180 degrees (e.g., coil) 154 ....Apertured plate of uniform thickness having undulating contact surfaces 155 ....Apertured plate having arched sectional configuration (e.g., concavo convex) 156 .....Arched configuration circumscribes aperture 157 ....Split ring having opposed ends offset axially 158 .....Contact surface contains a plurality of generally radially extending ridges or grooves removed from the ends 159 .....Cross section other than rectangular 160 ....Closed loop having plural variations in the profile of a contact surface or a peripheral edge thereof 161 .....Variations comprise generally radially extending ridges or grooves 162 .....Variations comprise circumferentially spaced projections or recesses inset from both peripheries 163 .....Variations are teeth located along a periphery 164 ......Both peripheries 165 ......Each twisted about its radial axis 166 .Restricting means comprises structure of fastener or substructuree 167 ..And bolt to nut thread lock 168 ..By or including bolt to substructure thread lock 169 ..Mass of bolt head or nut offset radially to resist loosening 170 ..Nut and apertured spacer formed in single strip of material and folded into axial alignment 171 ..Bolt or nut adapted to be fused directly to substructure (e.g., weld nut) 172 ..Nut, and means to engage substructure on its opposite faces for retaining nut at aperture therein, formed as unitary component 173 ...Means to engage extends through aperture 174 ...Means to engage grasps an edge of substructure 175 ....And has projection contacting periphery of aperture 176 ..Structure includes region which is deformable or produces deformation or both 177 ...Nut assembled to substructure utilizing cooperating regions on both 178 ....Nut is externally and internally threaded cylinder 179 ....Nut penetrates substructure and anchors itself thereto (e.g., pierce nut) 180 ....Nut deforms wall of preformed opening in substructure during assembly 181 ....Both cooperating regions deformed 182 ....Nonmetallic nut, resiliently deformed during assembly 183 ...Nut assembled to substructure by plastically deformable region on nut 184 ...Region on inwardly facing surface of bolt head or nut 185 ....Surface extends radially beyond flat sides of bolt head or nut 186 .....And includes resilient flange 187 ....Having axially directed projection or recess 188 .....Plural, radially extending, and generally equally spaced 189 ....Surface deforms resiliently 190 THREADED BOLT AND NUT AND MEANS FOR COUPLING THEM AGAINST RELATIVE ROTATION 191 .By locking member contacting side flat on nut or bolt and engageable with other fastener element 192 ..Member also engages side flat on other element 193 ...Utilizing a resilient characteristic of the member, or of a discrete element 194 ....With a discrete, resilient element 195 ...Other element is a bolt, and member includes opening configured to engage side flat thereon 196 ....And further includes spaced, axially extending legs for engaging side flats on the nut 197 ..Locking member contacts nut 198 ...Utilizing a resilient characteristic of the member, or of a discrete element 199 ....Member comprises key movable laterally into engagement with threaded elements 200 ...Member comprises key movable laterally into engagement with threaded elements 201 ...Member includes plastically deformable portion 202 ..Utilizing a resilient characteristic of the member, or of a discrete element 203 ...With a discrete, resilient element 204 .By locking member coacting with an axially outwardly facing portion of nutt 205 ..Member comprises key swingable (e.g., pivotal) into engagement with threaded elements 206 ...Utilizing a resilient characteristic of the key, or of a discrete element 207 ....With a discrete, resilient element 208 .....And key engageable with aligned formations (e.g., grooves) in axially outwardly facing portion of each threaded element 209 ..Member comprises key movable laterally into engagement with threaded elements 210 ...Utilizing a resilient characteristic of the key, or of a discrete element 211 ....With a discrete, resilient element 212 ...Including plastically deformable portion 213 ....Comprising an elongated element divided longitudinally (e.g., a cotter pin) 214 ..Member comprises a screw, and bolt includes a generally axially extending, internally threaded bore for receiving the screw 215 ...With an additional member between screw and axially outwardly facing portion 216 ..And the member including, as a substantial part thereof, an elongated, axially disposed key 217 ...Key coacts with bolt by occupying an axially extending recess formed in the radially outward surface thereof 218 ....And includes a portion adapted to extend into a transverse opening provided in the bolt 219 ....And includes a portion adapted to engage a substantial part of the periphery of the bolt 220 ....And includes a region plastically deformable into engagement with the axially outwardly facing portion 221 ..Member interlocks with an axially extending recess or slot in the bolt and a recess in the axially outwardly facing portion of the nut 222 ..Internally threaded locking member (e.g., jam nut) 223 ...Including means associated with at least one of the nuts for restricting rotation therebetween 224 ....Key received in part in each of the nuts 225 .....Including a plastically deformable portion 226 .....Received in axially extending passages or recesses 227 ....Comprising one or more discrete members serving as a pawl and ratchet 228 .....Inherently resilient pawl 229 ....Axially directed, resiliently biased detent means 230 ....Canted element 231 ....With means resiliently biasing the nuts apart 232 ....Side lock 233 .....Integral deformable means 234 .....By a discrete element 235 ......Periphery encompassing means (e.g., a sleeve) 236 ......Including plastic deformation (e.g., bending) of the discrete element 237 ....Having a part of one of the nuts extending into a circular, axially directed recess of the other, and further including, in the region of the recess, formations cooperating to restrict relative rotation 238 .....At least one of the formations comprises a surface eccentric to the longitudinal axis of the nutss 239 ....Including cooperating formations on the axially opposing portions of the nuts 240 .....Comprising teeth of the ramp and buttress type 241 .....Comprising surfaces of a curvilinear nature 242 ....Plastic deformation of at least one of the nuts 243 ....Reversed internal and external threads on one of the nuts 244 ....Oppositely threaded 245 .....Intersecting threads on the bolt 246 ..By thread-gripping locking element 247 ...Resilient grip 248 ....Split ring 249 .....Including structure interfitting within a thread for less than a full turn thereof 250 ...Wire structure 251 ....Helically coiled wire 252 .....Including a free end in nonrotational engagement with the threaded element 253 ...Gripping member includes a tapered section adapted to be axially depressed to cause radial movement of a portion thereof 254 ...Gripping member is moved radially into engagement with the threads 255 ....Including discrete means to move or to lock the gripping member relative to the externally threaded element 256 ...Gripping member is moved tangentially into engagement with the threads 257 .Including material in the nature of (1) a metallic coating, (2) a quantity of fusible metal or (3) a discrete member formed of ductile metal 258 .Including settable material 259 .Comprising a thread lock 260 ..Including a distortable metallic washer or sleeve 261 ...In the nature of a dished washer 262 ..Including a coil spring 263 ..Differential thread means 264 ..Rocking thread section on the externally threaded element 265 ..Including a tapered (e.g., a conical) surface for wedging the internally threaded element against the externally threaded one 266 ...Segmented internally threaded element 267 ....Discrete segments carried within a housing 268 ....Including a discrete, threaded member carrying the tapered surface and threadedly engaging one of the threaded elements 269 .....Engaging a threaded exterior provided on the segmented element 270 ....Including a sleeve or washer type member for carrying the tapered surface and surrounding the segmented element 271 ..Externally threaded element includes an axially extending opening in its free end for receiving an expander member 272 ..Including camming surfaces on the threaded elements or on an additional member 273 ...With a camming member having an eccentrically arranged recess for receiving the internally threaded element 274 ..Having an element, or with a discrete member, adapted to cant the assembly 275 ...With a discrete, canting member (e.g., a washer) 276 ..Having the internally threaded element distortedd 277 ...Radially inward distortion 278 ....With discrete means carried by the element for producing the distortion 279 .....Threaded means 280 ....Of cantilevered segments (e.g., castellated end) 281 ....Of circumferentially spaced areas of continuous periphery 282 .....Defining a smooth curving, noncircular thread section (e.g., elliptically shaped) 283 .....Impacted areas 284 ......Located on the flats of a polygonally shaped element 285 ...Axial distortion 286 ....With discrete means carried by the element for producing the distortion 287 ....By axially directed impacted areas 288 ....Of axially spaced threaded sections 289 .....Coiled spring 290 ....Including a region displaceable generally axially relative to another part of the element 291 .....Having at least one region formed by a cut, slot, etc., across at least one sidewall of the element and extending generally radially into the element 292 ..Including a longitudinal locking member 293 ...Having a toothed surface 294 ..Including a radial locking member 295 ...Threadedly received in the internally threaded element 296 ..Side clutch 297 ...Roller 298 ...Ball 299 ...Spring 300 ..Tangential locking member 301 ..Elastic gripping action 302 ...Elastic insert 303 ....Disposed in a counterbore in the internally threaded element 304 ....Disposed within an interruption of a threaded surface 305 ..Externally threaded element adapted to be compressed radially inwardly 306 ...Resilient element 307 ..Having threads of different pitch, or a thread of varying pitch 308 ..Involving dissimilarities in the sectional configuration of the threads 309 ...Resulting in the deformation of one thread by the other 310 ....By integral, interference-producing deviations from a standard thread shape 311 .....Located in the vicinity of the crest or the root of the thread 312 ..Including means biasing the threads in axially opposed directions 313 .Washer having a deformable portion engageable with a threaded element 314 ..Resiliently deformable portion 315 .With a member in the nature of a rotation preventing key movable laterally into engagement with the threaded elements 316 ..And utilizing a resilient characteristic of the key, or of a discrete element 317 ...With a discrete, resilient element 318 ....Comprising a spring of the coiled typee 319 ..And including a plastically deformable portion 320 ...Comprising an elongated element divided longitudinally (e.g., a cotter pin) 321 .With an elongated member in the nature of a rotation preventing key disposed axially of the threaded elements 322 ..And utilizing a resilient characteristic of the key, or of a discrete element 323 ..And including a plastically deformable portion 324 .Elastic gripping action 325 .Externally threaded element includes an axially extending opening in its free end for receiving an expander member 326 .Pawl and ratchet 327 ..Pawl carried by the internally threaded element 328 ...Pivoted pawl 329 ...Resilient pawl 330 ..Washer carried pawl 331 ...Resilient 332 .Including teeth of the ramp and buttress type on the axially inwardly facing portion of the internally threaded element 333 .By deformation of a threaded element 334 ..Plastic deformation 335 ...Of an internally threaded element 336 ....Into an interruption in the thread of the externally threaded element associated therewith 337 HEADED FASTENER ELEMENT WITH NUT, WASHER, SECURING MEANS OR CAP 338 .Lap bolt or fastener 339 ..Interference fit type 340 .Securing means pivotable about axis transverse to fastener axis, e.g., toggle bolt, etc. 341 ..And biasing spring 342 ...Spring engaging securing means 343 ...Spring at opposite end from securing means 344 ..And discrete manual actuating means 345 ..And pivoted retention means 346 ..Channel shaped securing means 347 .Headed fastener element with securing means and biasing spring 348 ..Ball detent securing means 349 ..Securing means rotatable about fastener element or rotatably engageable by tool-rotatable headed fastener element 549 ...Outwardly extending projection cooperates with socket member having ramp engagement means 550 ....Including means providing axial adjustment 551 .....Threaded adjustment 552 ....And discrete biasing spring 553 ....Similar, opposed ramp surfaces 554 ...Helically slotted securing means having cooperating engaging portion on socket member 555 ....Through-slot for engagement with crossbar 350 ...Securing means rotatable and axially movable, e.g., wear takeup means, etc. 351 .Draw bar or draft key fastener 352 .Metallic resilient securing means 353 ..Retainer ring 354 .Wedge-securing means 355 ..And apertured bolt 356 .Penetrating pin securing means 357 ..Longitudinally inserted 358 ...Outwardly deflectedd 359 ....Bifurcated 360 .Deformable securing means 361 ..Swageable collar 362 ..Securing means deflecting a portion of fastener end 363 ...Plural end legs 364 ....Cotter pin fastener 365 ....Circular deflector 366 .Threaded fastener and nut 367 ..Having stay bolt spacer sleeve 368 ..Having washer 369 ...Including sealing means 370 ....Stay bolt bearing washer 371 .Washer or cap 372 ..And separate attaching or retaining means 373 ..Attachable cap structure 374 ...By screw means 375 ...Crimpable 376 ...Weldable metal 377 ...Moldable 378 EXTERNALLY THREADED FASTENER ELEMENT, E.G., BOLT, SCREW, ETC. 379 .Stay bolt 380 ..Having spherical head 381 ...And telltale bore 382 ..Having telltale bore 383 .Multipart 384 ..Axially adjustable 385 ..Comprising longitudinal side-by-side sections 386 .Pilot end having means enhancing fastening or installation 387 ..Drill tip 388 .Double-ended 389 ..Both ends threaded 390 .Single element having means facilitating or effecting separation 391 ..By fluent pressure 392 .Resiliently flexible 393 .Set screw 394 .Drive screw 395 .Having bore therethrough 396 .Separate head element 397 ..Threadedly attached to shank 398 .Head eccentric with respect to fastener axis 399 .Head having counter-sinking means 400 .Hook head, e.g., J-bolt, etc. 401 .Elongated head, e.g., hanger bolt, etc. 402 .Head driving structure 403 ..Socket or slot 404 ...Orthogonally arranged slots, e.g., Phillips head, etc. 405 ...Opposed open ended plural slots, e.g., spanner, etc. 406 ...Dovetail 407 ...Having driver retaining means 408 ..Frictional engagement 409 ..Wing structure 410 ..Plural diverse driving structures 411 .Thread or shank structure 412 ..Plural threads on single shank 413 ...Of different pitch 414 ..Buttress thread 415 ..Of varying thread pitchh 416 ..Lobular thread 417 ..Circumferentially interrupted thread 418 ...By longitudinal slot 419 ....Shank bifurcated by slot extending entirely therethrough 420 ....Inclined slot 421 .....Helically oriented 422 ...By transversely extending bore 423 ..Truncated thread 424 ..Shank structure 425 ...Twisted 426 ...Tapered 427 INTERNALLY THREADED FASTENER ELEMENT, E.G., NUT, ETC. 428 .Including lubricating means 429 .Having cap 430 ..Cap crimped onto nut 431 ..Resiliently retained 432 .Multipart 433 ..Including movable threaded segments 434 ...Moved by fluent pressure 435 .Wing 436 .Thread structure 437 ..Interrupted 438 ..Coil spring 439 IMPACT DRIVEN FASTENER, E.G., NAIL, SPIKE, TACK, ETC. 440 .Having means to facilitate explosive driving 441 ..Discrete guide or centering means 442 .Plural attached fasteners 443 ..Integral strip 444 ..Laterally attached only at head or bridge 445 ..Attached end-to-end 446 .Including integral locking means 447 ..Comprising deformable portion 448 ...Expansible on impact 449 ....Axially collapsible section 450 ..Having means engageable on underside of member being secured by fastener 451 ..Comprising protrusion or recess means on shank 452 ...Longitudinal rib 453 ....Spiral rib 454 .....Defined by twisted shank 455 ...Circumferential rib 456 ...Barb 457 .Multiple prong, e.g., nailing plate, staple, etc. 458 ..Oppositely disposed prongs 459 ...Having plural prongs on one end 460 ...Having identical ends 461 ..Of sheet metal 462 ...Including stiffening means 463 ....Rib 464 .....Entire fastener having corrugations parallel to driving direction 465 ......Having sawtooth penetrating edge 466 ...Prongs cut and formed from body portion 467 ....Plural prongs from single opening 468 .....Including opposed prongs defining mirror image of each other 469 ..Multipart 470 ..Having prongs of different lengthh 471 ..Each prong bevelled from a single side toward its opposite side 472 ...Bevel located on outerside of prong 473 ..Having distinct driving head 474 ...Plural heads 475 ..Having means to limit penetration short of bridge portion 476 ..Having frangible portion 477 .Of sheet metal 478 ..Folded or twisted 479 ..Hollow fastener 480 .Separately attached head 481 .Head having central recess 482 .Plural axially aligned heads 483 .Wire formed head 484 .Domed head 485 .Hook head 486 .Head forms segment of disk 487 .Shank or penetrating end structure 488 ..Flat-sided shank 489 ...Tapered 490 ..Stepped shank 491 ..Oval or lobular shank 492 ..Angular shank portion 493 ..End structure 494 ...Pyramidal point 495 ...Slotted end 496 ...Chisel point 497 ...Stepped end 498 ...Conical point 499 ...Having a curved surface 500 HEADED FASTENER ELEMENT 501 .Having plastically flowable or deflectable end, e.g., rivet, etc. 502 ..Plural end legs 503 ...Sheet metal type 504 ..Solid end type 505 ...Stay bolt 506 ...Bolt head and end flowable 507 ....Domed head 508 .Having resilient securing structure on shank 509 ..Concentric ridge or flange 510 ...Plural ridges or flanges 511 FASTENER SECURING ELEMENT 512 .Having elastomeric material 513 .Cotter pin 514 ..Having deformed resilient middle portion 515 ..Having folded back leg 516 .Resilient metallic 517 ..Retainer ring 518 ...Having gripper holes 519 ...Plural radial sectioned 520 ..Sheet metal 521 ...Circular 522 ...Parallel legs, e.g., U-shaped, etc. 523 ....Folded leg having fastener aperture or recess 524 .....Plural folds 525 ...Having plural longitudinal slits 526 ....And slit coincident with element axiss 527 ....And helically inclined tongues, e.g., speed nut, etc. 528 ...Having longitudinal slit coincident with element axis 529 ...Having longitudinal slot forming fastener engaging slide 530 ..Wire or rod formed 531 WASHER STRUCTURE 532 .Including release means 533 .Including means for retaining washer to fastener 534 .Including antifriction means 535 .Including adjustable thickness means 536 ..Wear or lost motion compensating means 537 .Having leveling means 538 ..Inclined planar face 539 .Radially positionable 540 ..Pivotally hinged sections 541 ..Secured by plastic deformation 542 .Sealing 543 .Wire formed 544 .Axially resilient 545 .Corrugated 546 .Spacer 547 ..Of folded sheet material 548 MISCELLANEOUS * ****************************** * CROSS-REFERENCE ART COLLECTIONS * ****************************** 900 FASTENER OR FASTENER ELEMENT COMPOSED OF PLURAL DIFFERENT MATERIALS 901 .Core and exterior of different materials 902 ..Metal core 903 ...Resinous exterior 904 FASTENER OR FASTENER ELEMENT COMPOSED OF NONMETALLIC MATERIAL 905 .Paper or wood 906 .Leather or fabric 907 .Elastomeric 908 .Resinous material 909 FASTENER OR FASTENER ELEMENT COMPOSED OF THERMO-RESPONSIVE MEMORY MATERIAL 910 ANTITAMPER MEANS 911 .One-way drive 912 ANTISPLITTING FASTENER 913 SELF-EXPANDING ANCHOR 914 COATED BOLT 915 BOLT HAVING PACKING JOINT 916 BOLT HAVING TENSION FEATURE 917 NUT HAVING TENSION FEATURE 918 THREADLESS NUT 919 SCREW HAVING DRIVING CONTACTS 920 STAPLE 921 MULTIPLE-PRONGED NAIL, SPIKE OR TACK 922 NAIL, SPIKE OR TACK HAVING LOCKING DEVICE 923 NAIL, SPIKE OR TACK HAVING SPECIFIC HEAD STRUCTURE 924 COUPLED NUT AND BOLT 924.1 .Deformed 925 .Top stop 926 .Positive lock 927 ..Side 928 ..Thread gripper 929 .Thread lockk 929.1 ..Coil spring 929.2 ..Distorted washer 930 ..Flowing metal or settable material 931 ..Superposed nuts 932 ...Oppositely threaded 933 ....Key or pawl locked 934 .....Side locked 935 ..Cam or cone grip 935.1 ...Cam 936 ..Canted nut 937 ..Distorted nut 937.1 ...Predistorted thread pitch or diameter 937.2 ...Post-distorted thread pitch or diameter 938 ..Distorted thread 939 ..Longitudinal key 940 ..Radial key or gib 941 ..Side clutch 941.1 ...Spring 941.2 ...Roller 941.3 ...Ball 942 ..Tangential key 943 .Flexible washer 944 .Flexible key 945 .Cross key 946 ..Spring-seated 947 .Elastic-gripping action 948 .Longitudinal key 949 .Rachet and bolt-carried pawl 950 .Rachet and nut-carried pawl 951 ..Flexible 952 ..Pivoted 953 .Washer-carried pawl 954 .Wedged slotted bolt 955 LOCKED BOLTHEAD OR NUT 956 .Automatic base clutch 957 ..Biting tooth 958 ...Coiled washer 959 ...Bolt- or nut-carried 960 ..Friction 961 ..Pawl and ratchet 962 ...Bolthead or nut-carried pawl 963 ...Yielding interlocking washer 964 ..Detent 965 .With retainer 966 ..Multiple (i.e., gang type) 967 ..Deformable bolthead or nut 968 ..Deformable base member 969 ..Deformable retainer 970 ..Resilient retainer 971 ..And side lock 972 .Distorted 973 .Gravity bolthead, nut or washer 974 .Side lock 975 ..Rotatable washer 976 ...Bent tongue-locked 977 ...Pawl-locked 978 ..Pawl and ratchet 979 ..Resilientt 980 ...Automatic 981 ....Coiled washer 982 ....Spring-tongued washer plate 983 ..Inelastic tongue 984 ..Longitudinal 985 ...Bolthead- or nut-held 986 ....Reversed bolthead or nut 987 ...Side pin 988 ...Spike-held locking plate 989 ...Swinging 990 ...Washer tongue-held 991 ..Transversely sliding 992 ...Key, plate, or bar 993 ....bolthead- or nut-held 994 ....Sliding washer 995 ..Transversely swinging 996 .Transverse base-locking key 997 .Longitudinal fastener 998 WITH POSITIVE BOLT LOCK 999 WITH RETAINER (E.G., TETHER) * ****************************** * DIGESTS * ****************************** DIG 1 THREAD FORMING, REFORMING, OR CLEANING DIG 2 TEMPERATURE MODIFICATION DIG 3 UTILIZING FLUID PRESSURE