... bolt 1. Standard:DIN, ANSI, BSW, JSB ans ISO standard or non-standard as request&design.2. Material:Carbon steel, Alloy steel ... , A4-70, A4-804. Dimension : M5-M20 or as request5. OEM&Customize non-standard products welcome.6. Surface treatment:Plain, black ... : MaterialStailess steel SS301, SS304 SS316 SS430,carbon steel,alloy or as request Finishnickel plated, passivation,black oxide,self color SizeM5 ...