Item Specifications UPC 842176100715 Package Quantity 50 Size 1/4"-28 x 1/2" Head Style Hex Head Height 11/64" Drive Style External Hex Drive Size 7/16" Inch / Metric Inch Thread Size 1/4"-28 Thread Dia. 0.250" Thread Class Class 2A Coarse / Fine Fine Threads Per Inch (TPI) 28 Thread Coverage Full Thread Length 1/2" Thread Length Dec. 0.5" Material Stainless Steel 18-8 Finish Plain Specification 1 ASME : B18.2.1 Tensile Strength 70,000 PSI Core Hardness Rockwell B70 Item Type Bolts Product Code 5150-11695 SKU 3SSC904F0008