1.Material Steel 2.Standard DIN,ISO,JIS 3.Size M2.5-M24 4.Length 8mm-45mm 5.Finish:zinc plate,brass plate, ISO8750 Black zinc plated Metric Slotted Spring Pins ---------Spring pins specifications: Material carbon steel,stainless steel,copper and etc.pin stylespring pin, spring slotted pinsStandard ISO8750, ISO8752, ASME B 18.8.2, DIN1481Surface Finish zinc plate,plain finish,black oxide, ...