DIN 6912 Hexagon socket low head cap screws M4X8 Stainless steel A4 with red, nylon patching 360 degree. 5 000 / 10000 Pcs ISO 14583 Hexalobular socket pan head screws M4X16 stainless steel A2, Delta Seal plate black 10000 Pcs ISO 14581 Hexalobular socket flat countersunk head screws M3x12 stainless steel A2, Delta Seal plate black 10000 Pcs