name: spring nut fastenertandards

S:ANSI(IFI),DIN,BS,JIS and per specially design.
Grade：4, 6, 8,10,12
Size:M6-M27
Surface treatment:Chrome,Zinc,Black, Red, Blue, Green, Colorful.
Packing:
1)Polybag
2)Plastic Box
3)Standard Export Carton
We can supply nonstandard nuts as customers' requirements.