Item Specifications UPC 842176129549 Package Quantity 25 Size 1/4"-20 x 2-1/4" Head Style Flat Counter Sink Angle 82 Degree Head Diameter 0.452" Head Height 0.147" 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 2-1/4" Thread Length Dec. 2.103" 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 5150-16540 SKU 3SSMPF94C204