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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
Washer
