FASTENERS / SOCKET HEAD / SET-NYLON TIP Filters Finish THERMAL BLACK ZINC Your Results Showing 1 - 1 of 1 results. 1 SOCKET SET SCREW-ALLOYASME/ANSI B18.3-2002ASTM F912 CLASS 3ARC 45-53SPECIAL SIZES AVAILABLE Part Number Description Grade Finish Type 072-02500-0050NT SOC SET NYL TIP 1/4-20 X 1/2 ALLOY THERMAL BLACK STANDARD 1