This ARP 12-point nut is machined from 8740 chromoly steel with a black oxide finish and rated at 180,000 psi tensile strength. The 7/16-20 thread and 12-point head give a high-strength, aerospace-quality replacement for factory nuts on studded engine and driveline hardware.
Specifications
| Type | 12-point nut |
| Material | 8740 chromoly steel, black oxide |
| Thread | 7/16-20 |
| Tensile Strength | 180,000 psi |
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