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Fastener Materials Guide
| Material | USE? | Yield Strength | Tensile Strength | Used For |
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| Grade 5 | No | 90,000 psi | 120,000 psi | Accessory bolts and studs |
| Grade 8 | No | 120,000 psi | 150,000 psi | Accessory bolts and studs |
| "Stainless 300" | Yes | 140,000 psi | 170,000 psi | Accessory bolts and studs, head studs |
| Custom 450 ® | Yes | 150,000 psi | 180,000 psi | Head bolts, accessory bolts |
| 8740 chromemoly | Yes | 180,000 psi | 200,000 psi | Rod bolts, head & main studs/bolts |
| A286 | Yes | 170,000 psi | 200,000 psi | Head bolts, accessory bolts |
| ARP2000 | Yes | 180,000 psi | 220,000 psi | Rod bolts, head & main studs |
| L19 | Yes | 200-230,000 psi | 260,000 psi | Connecting rod bolts |
| Inconel 718 | Yes | 190-210,000 psi | 220,000 psi | Connecting rod bolts |
| Custom Age 625+ ® | Yes | 235-255,000 psi | 260,000 psi | Head bolts, connecting rod bolts |
| ARP 3.5 | Yes | 220-250,000 psi | 260,000 psi | Connecting rod bolts |
| AerMet ® 100 | Yes | 260,000 psi | 280,000 psi | Connecting rod bolts |
| Titanium | Yes | 160,000 psi | 180,000 psi | Head studs, accessory bolts |
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