... 8mm-45mm 5.Finish:zinc plate,brass plate, Metric ISO8750 Black zinc plated Slotted Spring Pins 1.Material carbon steel,stainless ... .8.2, DIN1481 4.Surface Finish zinc plate,plain finish,black oxide, phosphated, nickel plated 5. Normal diameterM2, M2.5, M3 ... avoid the moist air and outside is Carton packing and pallet packing ,small boxes,or according to the customer's requirement ...