3/16 1/4 5/16 3/8 UNC ZINC PLATED STEEL 12.9 ZINC SOCKET CAP ALLEN BOLTS

UNC ZINC PLATED STEEL 12.9 HIGH TENSILE STEEL SOCKET CAP ALLEN BOLTS. UNC (Imperial coarse thread). Zinc plated. 12.9 grade high tensile steel. 3/8" - 16 tpi. 5/16" - 18 tpi. 1/4 - 20 tpi. 3/16 - 24 tpi (10-24).

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