carbon steel spring nut: 1.Material:carbon steel; 2.Surface:galvanized or zinc plating; 3. ... stamping partGalvanized carbon steel spring nut(M6,M8,M10,M12): 1.Material:Galvanized steel;stainless steel 304 or 316;2.Surface ... ,M12*8mm,M12*9.1mm,M12*11.9mm,1/4",3/8",5/16",1/2";We hope to receive drawings or physical ... you competitive price asap. spring nut(M6,M8,M10,M12,1/4",3/8",5/16",1/2")