Structural Bolt Weight Chart

Structural Bolt Weight Chart

Weight (lbs.) per hundred ASTM F3125 Grade A325 or A490 heavy hex structural bolts with a nut.

Length Diameter
1⁄2" 5⁄8" 3⁄4" 7⁄8" 1" 11⁄8" 11⁄4" 13⁄8 11⁄2
1 16.5 29.4 47.0 - - - - - -
11⁄4 17.8 31.3 49.6 74.4 104 - - - -
11⁄2 19.2 33.1 52.2 78 109 148 197 - -
13⁄4 20.5 35.3 55.3 81.9 114 154 205 261 333
2 21.9 37.4 58.4 86.1 119 160 212 270 344
21⁄4 23.3 39.8 61.6 90.3 124 167 220 279 355
21⁄2 24.7 41.7 64.7 94.6 130 174 229 290 366
23⁄4 26.1 43.9 67.8 98.8 135 181 237 300 379
3 27.4 46.1 70.9 103 141 188 246 310 391
31⁄4 28.8 48.2 74 107 146 195 255 321 403
31⁄2 30.2 50.4 77.1 111 151 202 263 332 416
33⁄4 31.6 52.5 80.2 116 157 209 272 342 428
4 33 54.7 83.3 120 162 216 280 353 441
41⁄4 34.3 56.9 86.4 124 168 223 289 363 453
41⁄2 35.7 59 89.5 128 173 230 298 374 465
43⁄4 37.1 61.2 92.7 133 179 237 306 384 478
5 38.5 63.3 95.8 137 184 244 315 395 490
51⁄4 39.9 65.5 98.9 141 190 251 324 405 503
51⁄2 41.2 67.7 102 146 196 258 332 416 515
53⁄4 42.6 69.8 105 150 201 265 341 426 527
6 44 71.9 108 154 207 272 349 437 540
61⁄4 - 74.1 111 158 212 279 358 447 552
61⁄2 - 76.3 114 163 218 286 367 458 565
63⁄4 - 78.5 118 167 223 293 375 468 577
7 - 80.6 121 171 229 300 384 479 589
71⁄4 - 82.8 124 175 234 307 392 489 602
71⁄2 - 84.9 127 179 240 314 401 500 614
73⁄4 - 87.1 130 183 246 321 410 510 626
8 - 89.2 133 187 251 328 418 521 639
81⁄4 - - - 192 257 335 427 531 651
81⁄2 - - - 196 262 342 435 542 664
83⁄4 - - - - - - 444 552 676
9 - - - - - - 453 563 689
Per inch
Adder		 5.5 8.6 12.4 16.9 22.1 28 34.4 42.5 49.7
F436 Round Washers 2.1 3.6 4.8 7 9.4 11.3 13.8 16.8 20
Above weights are for plain finish bolts with nuts. Hot-dip galvanizing will add less than one half of one percent (>0.5%).

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