Item Specifications UPC 842176170701 Package Quantity 10 Size 1/4"-20 x 4" Head Style Round Head Diameter 0.472" Head Height 0.175" 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 4" Thread Length Dec. 4" Material Brass Finish Plain Specification 1 ASME : B18.6.3 Tensile Strength 50,000 PSI Core Hardness Rockwell B50 Item Type Machine Screws Product Code 5150-29350 SKU 3RSMSR94C400