A490
A325 and A490 *Dimensions and Tolerances
Available in hot dipped galvanized and specialty corrosion resistant coatings upon request.
| Bolt size in, Inches | To Determine Required Bolt Length Add to Grip, in Inches |
|---|---|
| 1⁄2 | 11⁄16 |
| 5⁄8 | 7⁄8 |
| 3⁄4 | 1 |
| 7⁄8 | 1 1⁄8 |
| 1 | 1 1⁄4 |
| 1 1⁄8 | 1 1⁄2 |
| 1 1⁄4 | 1 5⁄8 |
| 1 3⁄8 | 1 3⁄4 |
| 1 1⁄2 | 1 7⁄8 |
Also Available In Hot Dipped Galvanized
A325 Dimensions
| Bolt Diameter | Bolt Diameter | Width Across Flats | Width Across Corners | Height | Thread Length | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| Max | Basic | Max | Min | Max | Min | Basic | Max | Min | Basic | |
| 1/2 | 0.515 | 7⁄8 | 0.875 | 0.850 | 1.010 | 0.969 | 5⁄16 | 0.323 | 0.302 | 1.00 |
| 5/8 | 0.642 | 1/1⁄16 | 1.062 | 1.031 | 1.227 | 1.175 | 25⁄64 | 0.403 | 0.378 | 1.25 |
| 3/4 | 0.768 | 1/1⁄4 | 1.250 | 1.212 | 1.443 | 1.383 | 15⁄32 | 0.483 | 0.455 | 1.38 |
| 7/8 | 0.895 | 1/7⁄16 | 1.438 | 1.394 | 1.660 | 1.589 | 35⁄64 | 0.563 | 0.531 | 1.50 |
| 1 | 1.022 | 1/5⁄8 | 1.625 | 1.575 | 1.876 | 1.796 | 39⁄64 | 0.627 | 0.591 | 1.75 |
| 1/1⁄8 | 1.149 | 1/13⁄16 | 1.812 | 1.756 | 2.093 | 2.002 | 11⁄16 | 0.718 | 0.658 | 2.00 |
| 1/1⁄4 | 1.277 | 2 | 2.00 | 1.938 | 2.309 | 2.209 | 25⁄32 | 0.813 | 0.749 | 2.00 |
| 1/3⁄8 | 1.404 | 2/3⁄16 | 2.188 | 2.119 | 2.526 | 2.416 | 27⁄32 | 0.878 | 0.810 | 2.25 |
| 1/1⁄2 | 1.531 | 2/3⁄8 | 2.375 | 2.300 | 2.742 | 2.622 | 15⁄16 | 0.974 | 0.902 | 2.25 |