F3125 Bolt Types
| Grade | Min Strength, Tensile | Type | Style |
|---|---|---|---|
| A325 | 120ksi min | 1 or 3 | Heavy Hex Head |
| A325M | 830MPa min | 1 or 3 | Heavy Hex Head |
| F1852 | 120ksi min | 1 or 3 | Twist-Off/TC |
| A490 | 150-173ksi | 1 or 3 | Heavy Hex Head |
| A490M | 1040MPa | 1 or 3 | Heavy Hex Head |
| F2280 | 150ksi | 1 or 3 | Twist-Off/TC |
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