1.Material Steel 2.Standard DIN,ISO,JIS 3.Size M2.5-M24 4. ... Pins 1.Material carbon steel,stainless steel,copper and etc.. 2. pin style spring pin 3. Standard ISO8750, ISO8752, ASME B 18.8 ... .2, DIN1481 4.Surface Finish zinc plate,plain finish,black oxide, ...