Item Specifications UPC 842176139432 Package Quantity 50 Size 1/4"-20 x 1-1/4" Head Style Oval Counter Sink Angle 82 Degree Head Diameter 0.477" Head Height 0.312" Drive Style Slotted 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 1-1/4" Thread Length Dec. 0.938" Material Stainless Steel 18-8 Finish Plain Specification 1 ASME : B18.6.3 Tensile Strength 80,000 PSI Core Hardness Rockwell B80 Item Type Machine Screws Product Code 5150-29960 SKU 3SSMSO94C104