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Fastener Materials Guide
| Material |
USE? |
Yield Strength |
Tensile Strength |
Used For |
| 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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