... Material: A2(SS304)A4(SS316) Standard: GB37,DIN,JIS,ANSI Advantage:Mainly used in the solar ... and according to the quantitySpecifications:Name:T-boltsStandard: GB37,DIN,JIS,ANSIGrade:Class 4.8, Class 6.8, Class ... 8.8, Class 10.9, Class 12.9StandardGB37,DIN,JIS,ANSIColorsilver,plainTechnology:cold forging,heat treatment,Packing:in bulk ... nuts,washer and relative hardwarePhotoes as following: T-type bolts