Item Specifications UPC 842176105901 Package Quantity 50 Size 1/4"-20 x 5/8" Head Style Truss Head Diameter 0.573" Head Height 0.150" Drive Style Phillips Drive Size #3 Inch / Metric Inch Thread Size 1/4"-20 Thread Dia. 0.250" Thread Class Class 2A Coarse / Fine Coarse Threads Per Inch (TPI) 20 Thread Coverage Full Thread Length 5/8" Thread Length Dec. 0.625" Material Stainless Steel 18-8 Finish Plain Specification 1 ASME : B18.6.3 Tensile Strength 70,000 PSI Core Hardness Rockwell B70 Item Type Machine Screws Product Code 5150-22230 SKU 3SSMPT94C010