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+1 (217) 579-8045Premium alloy steel socket head cap screw featuring 1/2-13 coarse thread, 2-1/4" length, and black oxide finish for corrosion resistance. Partial thread design provides optimal clamping strength while maintaining unthreaded shank strength for precision fastening applications. Manufactured to ASTM specifications for consistent performance in high-stress industrial and mechanical assemblies.
| Coverage | Partial Thread |
| Finish | Black oxide |
| Head Type | Socket |
| Length | 2 1/4" |
| Material | Alloy steel |
| Thread | Coarse |
| TPI | 13 |