Hardened Washer Dimensions
| Bolt Size | B | A | C | Weight (lbs.) Per 1000 Pieces | Part Numbers | ||
|---|---|---|---|---|---|---|---|
| Outside Diameter | Inside Diameter | Thickness | Domestic | ||||
| Min | Max | Plain | Galvanized | ||||
| 1⁄2 | 11⁄16 | 17⁄32 | 0.097 | 0.177 | 18 | 16440 | 16441 |
| 5⁄8 | 15⁄16 | 11⁄16 | 0.122 | 0.177 | 33 | 16442 | 16443 |
| 3⁄4 | 115⁄32 | 13⁄16 | 0.122 | 0.177 | 41 | 16444 | 16445 |
| 7⁄8 | 13⁄4 | 15⁄16 | 0.136 | 0.177 | 64 | 16446 | 16447 |
| 1 | 2 | 11⁄16 | 0.136 | 0.177 | 82 | 16448 | 16449 |
| 11⁄8 | 21⁄4 | 13⁄16 | 0.136 | 0.177 | 105 | 16450 | 16451 |
| 11⁄4 | 21⁄2 | 13⁄8 | 0.136 | 0.177 | 133 | 16452 | 16453 |
| 13⁄8 | 23⁄4 | 11⁄2 | 0.136 | 0.177 | 163 | 16454 | 16455 |
| 11⁄2 | 3 | 15⁄8 | 0.136 | 0.177 | 200 | 16456 | 16457 |
| 15⁄8 | 31⁄4 | 13⁄4 | 0.178 | 0.28 | 320 | 19481* | 19482* |
| 13⁄4 | 33⁄8 | 17⁄8 | 0.178 | 0.28 | 307 | 16458 | 16459 |
| 17⁄8 | 31⁄2 | 2 | 0.178 | 0.28 | 360 | 16471* | 16472 |
| 2 | 33⁄4 | 21⁄8 | 0.178 | 0.28 | 380 | 16460 | 16461 |
| 21⁄4 | 4 | 23⁄8 | 0.24 | 0.34 | 560 | 16462 | 16463 |
| 21⁄2 | 41⁄2 | 25⁄8 | 0.24 | 0.34 | 720 | 16464 | 16465 |
| 23⁄4 | 5 | 27⁄8 | 0.24 | 0.34 | 920 | 16611 | 16612 |
| 3 | 51⁄2 | 31⁄8 | 0.24 | 0.34 | 1040 | 16613 | 16614 |
| 31⁄4 | 6 | 33⁄8 | 0.24 | 0.34 | 1350 | - | - |
| 31⁄2 | 61⁄2 | 35⁄8 | 0.24 | 0.34 | 1633 | 18490 | 18460 |
| 33⁄4 | 7 | 37⁄8 | 0.24 | 0.34 | 1880 | - | - |
| 4 | 71⁄2 | 41⁄8 | 0.24 | 0.34 | 2200 | 18461 | 18462 |
| Dimensions per ASTM F436 *Usually domestic |
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