... : carbon steel Surface treatment: nickel-plated Function:spring piece nut block can be staffed directly into any assembly point of ... nutSize:M6-M18 spring nutMaterial:Carbon steel,Stainless steel spring nut Finish:zinc,chrome,nickel spring nutQuality:High-quality raw ... North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Asia,Western Europe,US, South Korea, Russia and so ...