SAE Bolt Strength
SAE Bolt Tensile Strength (Working Load)
Safe Tensile Load at 6,000 PSI Load
Safe Shear Strength at 7,500 PSI Load
| BOLT DIA (IN) | SHEAR (AT THREAD ROOT) | SHEAR (FULL BOOT) | TENSILE (AT THREAD ROOT) |
| 1/4" | 200 | 370 | 160 |
| 5/16" | 340 | 575 | 270 |
| 3/8" | 510 | 830 | 4100 |
| 7/16" | 700 | 1130 | 560 |
| 1/2" | 940 | 1470 | 760 |
| 9/16" | |||
| 5/8" | 1510 | 2300 | 1210 |
| 3/4" | 2260 | 3310 | 1810 |
| 7/8" | 3140 | 4510 | 2520 |
| 1" | 4130 | 5890 | 3300 |
| 1-1/8" | 5200 | 7450 | 4160 |
| 1-1/4" | 6670 | 9200 | 5350 |
| 1-3/8" | 7900 | 11130 | 6340 |
| 1-1/2" | 9700 | 13250 | 7700 |
| 1-5/8" | 11360 | 15550 | 9090 |
| 1-3/4" | 13080 | 18000 | 10470 |
| 1-7/8" | 15370 | 20700 | 12300 |
| 2" | 17250 | 23560 | 13800 |
BOLT TENSILE STRENGTH
(BREAKING STRENGTH - LBS)
| BOLT DIA (IN) | Grade 2 | Grade 5 | Grade 8 | |||
| COARSE | FINE | COARSE | FINE | COARSE | FINE | |
| 1/4" | 2350 | 2700 | 3800 | 4350 | 4750 | 5450 |
| 5/16" | 3900 | 4300 | 6300 | 6950 | 7850 | 8700 |
| 3/8" | ||||||
| 7/16" | 7850 | 8800 | 12800 | 14400 | 15900 | 17800 |
| 1/2" | 10500 | 11800 | 17000 | 19200 | 21300 | 24000 |
| 9/16" | 13500 | 15000 | 21800 | 24400 | 27300 | 30400 |
| 5/8" | 16700 | 18900 | 27100 | 30700 | 33900 | 38400 |
| 3/4" | 24700 | 27600 | 40100 | 44800 | 50100 | 56000 |
Please Note:
The above specifications are offered as a guide ONLY. Specifications should be determined with assembly conditions taken into account.
Published: Jun 18, 2019
