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