... nut 1.Nut size:M4-M20 2.Nut material:Stainless steel,Carbon steel 3.Nut finsh:ZP, BZP, HDG 4.Effect:fastening Spring Nut/Slotted Nut ... carbon steel Surface treatment: nickel-plated Function:spring piece nut block can be staffed directly into any assembly point of ... Details: Products Name: Spring nut Size: M6-M18 spring nut Material: Carbon steel,Stainless steel spring nut Finish: zinc,chrome,nickel ...