Item Specifications UPC 842176170688 Package Quantity 10 Size 1/4"-20 x 2-1/2" 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 2-1/2" Thread Length Dec. 2.5" 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 5150-29340 SKU 3RSMSR94C208