self tapping screws Standard:DIN,ANSI Diamenter:3-10mm Length:4-100mm self tapping screwsStandard:DIN,ANSIDiamenter:3-10mmLength:4-100mmClass:4.8/5.8/6.8/8.8/10.9/12.9Material:stainless stee,cabon steel,brass steelFinish:zinc,plain,black phosphated,grey phosphated,nickle self tapping screws