Slotted set screw with cup point DIN 438 Stainless steel A1/A251291
Slotted set screw with flat point DIN 551 Stainless steel A1/A251292
Hexagon socket set screw with cup point UNF ASME B18.3 Alloy steel ASTM F912 PlainU07852
Hexagon socket set screw with knurled cup point UNC ASME B18.3 Alloy steel ASTM F912 Plain #4-40X1/8U07890.011.0012