... 1/4"~5/8" ANSI/ASME B18.2.1 Hex Head Screws Features (material: 304, 304L, 316, 316L, etc.): ... 1) M5~M16 DIN931 Hex Bolts and DIN933 Hex Head Screws, DIN934 and ANSI/ASME Hex Nuts2) 1/4 ... "~5/8" ANSI/ASME B18.2.1 Hex Head Screws 3) M6~M20 DIN976/DIN975 Threaded Rods and ... ' Tapping Screws, Hex Socket Cap Screws, Cross Countersunk Head Screws and some other special fasteners can be provided as ...