Length Tolerance for Non-Pointed Products Including Square, Hex, Heavy Hex, and Askew Head Bolts
| Nominal Length | Nominal Size | |||||
|---|---|---|---|---|---|---|
| 1⁄4 to 3⁄8 | 7⁄16 and 1⁄2 | 9⁄16 to 3⁄4 | 7⁄8 and 1 | 11⁄8 to 11⁄2 | Over 11⁄2 | |
| Up to 1 in. incl. | +0.02 -0.03 | +0.02 -0.03 | +0.02 -0.03 | - - | - - | - - |
| Over 1 in. to 21⁄2 in., incl. | +0.02 -0.04 | +0.04 -0.06 | +0.06 -0.08 | +0.08 -0.10 | +0.12 -0.12 | +0.18 -0.18 |
| Over 21⁄2 in. to 4 in., incl. | +0.04 -0.06 | +0.06 -0.08 | +0.08 -0.10 | +0.10 -0.14 | +0.16 -0.16 | +0.20 -0.20 |
| Over 4 in. to 6 in., incl. | +0.06 -0.10 | +0.08 -0.10 | +0.10 -0.10 | +0.12 -0.16 | +0.18 -0.18 | +0.22 -0.22 |
| Longer than 6 in. | +0.10 -0.18 | +0.12 -0.18 | +0.14 -0.18 | +0.16 -0.20 | +0.22 -0.22 | +0.24 -0.24 |