Knowledge (XXG)

Distorted thread locknut

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100:
nuts as the nut may be easily started on the male fastener from the bottom non-deformed portion but is practically impossible to start from the deformed end. As the male fastener reaches the deformed section it stretches the threads of the nut
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nuts, after their originator and current manufacturer, and differ from the above three nut types insofar as a portion of the thread is displaced axially, this being facilitated by one or more slots perpendicular to the axis.
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back into a circle. This action increases the friction between the nut and the fastener greatly and creates the locking action. Due to the elastic nature of the deformation the nuts can be reused indefinitely.
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Toplock nuts are also similar to elliptical offset nuts, except that the whole thread on one end is not distorted. Instead only three small sections of the thread are deformed on one end.
92:,. The salient feature is that the thread has been deformed at one end so that the threads are no longer perfectly circular. The deformed end is usually shaped into an ellipse or 114:
Center lock nuts are similar to elliptical offset nuts, except that they are distorted in the middle of the nut. This allows the nut to be started from either side.
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High-strength distorted thread nuts cannot be used with low-strength fasteners because the hard nut will act like a
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from loosening due to vibrations, or rotation of the clamped item. There are four types:
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Because these nuts are solid metal, they remain effective at high temperatures, unlike
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Elliptical offset nuts is a catch-all category that encompasses designs known as
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nuts can withstand temperatures up to 1,400 °F (760 °C).
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Carroll Smith's Nuts, Bolts, Fasteners, and Plumbing Handbook
171: 169: 167: 165: 307: 130:Partially depitched nuts are commonly called 8: 314: 300: 292: 76:and destroy the threads on the fastener. 187: 185: 161: 277:, MotorBooks/MBI Publishing Company, 7: 46:partially depitched (Philidas) nuts 14: 24:that uses a deformed section of 262:(114th ed.), McMaster-Carr 1: 96:triangle. These are known as 536: 329: 374:distorted thread locknut 126:Partially depitched nuts 90:non-slotted hex locknuts 18:distorted thread locknut 203:Non-slotted hex locknut 80:Elliptical offset nuts 34:elliptical offset nuts 260:McMaster-Carr catalog 52:High temperature use 191:Smith, pp. 104–105. 399:internal wrenching 394:interfering thread 507: 506: 527: 316: 309: 302: 293: 287: 263: 246: 244: 243: 242: 233:, archived from 225: 219: 217: 216: 215: 206:, archived from 198: 192: 189: 180: 173: 535: 534: 530: 529: 528: 526: 525: 524: 520:Nuts (hardware) 510: 509: 508: 503: 325: 323:Nuts (hardware) 320: 285: 267: 258: 255: 250: 249: 240: 238: 227: 226: 222: 213: 211: 200: 199: 195: 190: 183: 174: 163: 158: 153: 141: 128: 120: 112: 110:Centerlock nuts 82: 70: 54: 38:centerlock nuts 20:, is a type of 12: 11: 5: 533: 531: 523: 522: 512: 511: 505: 504: 502: 501: 496: 491: 486: 481: 476: 471: 466: 461: 456: 451: 446: 441: 436: 431: 426: 421: 416: 411: 406: 401: 396: 391: 386: 381: 376: 371: 366: 361: 356: 351: 346: 341: 336: 330: 327: 326: 321: 319: 318: 311: 304: 296: 290: 289: 283: 269:Smith, Carroll 265: 254: 251: 248: 247: 220: 193: 181: 160: 159: 157: 154: 152: 149: 148: 147: 145:Split beam nut 140: 137: 127: 124: 119: 116: 111: 108: 81: 78: 69: 68:Safety factors 66: 53: 50: 13: 10: 9: 6: 4: 3: 2: 532: 521: 518: 517: 515: 500: 497: 495: 492: 490: 487: 485: 482: 480: 477: 475: 472: 470: 467: 465: 462: 460: 457: 455: 452: 450: 449:serrated face 447: 445: 442: 440: 437: 435: 432: 430: 427: 425: 422: 420: 417: 415: 412: 410: 407: 405: 402: 400: 397: 395: 392: 390: 387: 385: 382: 380: 377: 375: 372: 370: 367: 365: 362: 360: 357: 355: 352: 350: 347: 345: 342: 340: 337: 335: 332: 331: 328: 324: 317: 312: 310: 305: 303: 298: 297: 294: 286: 284:0-87938-406-9 280: 276: 275: 270: 266: 261: 257: 256: 252: 237:on 2015-03-07 236: 232: 231: 224: 221: 210:on 2011-05-13 209: 205: 204: 197: 194: 188: 186: 182: 178: 175:McMaster, p. 172: 170: 168: 166: 162: 155: 150: 146: 143: 142: 138: 136: 133: 125: 123: 117: 115: 109: 107: 104: 99: 95: 91: 87: 86:oval locknuts 79: 77: 75: 67: 65: 63: 59: 51: 49: 47: 43: 39: 35: 31: 27: 23: 19: 373: 339:axial barrel 273: 259: 253:Bibliography 239:, retrieved 235:the original 230:Philidas nut 229: 223: 212:, retrieved 208:the original 202: 196: 129: 121: 118:Toplock nuts 113: 97: 89: 85: 83: 71: 55: 45: 42:toplock nuts 41: 37: 33: 28:to keep the 17: 15: 359:castellated 103:elastically 464:split beam 241:2012-12-01 214:2008-11-30 151:References 62:High-grade 58:nyloc nuts 384:frangible 514:Category 369:coupling 271:(1990), 139:See also 132:Philidas 499:wingnut 424:locknut 419:knurled 364:clip-on 354:captive 98:one-way 94:obround 22:locknut 484:T-slot 469:square 389:insert 379:flange 344:barrel 281:  26:thread 479:T-nut 474:swage 459:split 454:speed 444:rivet 439:plate 434:nyloc 334:acorn 156:Notes 494:well 489:weld 414:Keps 349:cage 279:ISBN 177:3139 44:and 429:lug 409:jet 404:jam 88:or 74:die 30:nut 516:: 184:^ 164:^ 60:. 48:. 40:, 36:, 16:A 315:e 308:t 301:v 288:. 264:. 245:. 218:. 179:.

Index

locknut
thread
nut
nyloc nuts
High-grade
die
obround
elastically
Philidas
Split beam nut




3139


Non-slotted hex locknut
the original
Philidas nut
the original
Smith, Carroll
Carroll Smith's Nuts, Bolts, Fasteners, and Plumbing Handbook
ISBN
0-87938-406-9
v
t
e
Nuts (hardware)
acorn

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