High strength steel bolt DIN standard Class 10.9 ANSI B18.5 SAE grade 8 ... Bolt diameter from M6 to M30 Length from 10 to 300mm High Strength Round Head Steel BoltHigh performance ... , high qualiyDIN metric size grade 10.9 and 12.9 ANSI B18.5 Inch Size ... SAE, ASTM, DIN, JIS, etc SizeD: M6 to M30, L:10 to 300mm MaterialCarton Steel, Stainless Steel, BrassSurfacePlain, black, ZP, ...