Standard: DIN 933/931/912,DIN 960/961,IS0 4014/4017,ANSI/ASME B18.2.1 IFI A10

Size: M4-M64, 1/4"-2"

Material: alloy steel, carbon steel 35#,stainless steel, brass

Grade: 8.8,10.9,12.9,SAE J429 GR.5/GR.8

Surface: Black, Zinc Cr+3, Yellow Zinc Cr+6,H.D.G., Dacromet, etc.

Packing: bulk, box packing, polybag