... Bolt Material,stainless steel,carbon steel 3.SGS,ISO 4.zinc or nickel plated,black oxide,HDG DIN933 ... 200mm. same as hex nut.C, carbon steel, grade 4.8, grade 8.8, M5-M24, length between ... according require3. Grade of hex bolt:Metric standard: Grade 4.8, Grade6.8, Grade8.8, Grade10.9,Grade12. ... hex boltunit:mm diameterpitchbdssL<125125200maxminmaxminM40.714 4 7 M50.81622 5 8 M611824 6 10 M712026 ...