Size:M6-M48;1/4"-4"
Material:Carbon Steel,Alloy steel,stainless steel
Grade:4, 6, 8, 10
Surface Finish:Plain, Black, Zinc Plated, HDG
Place of Origin:Hebei,China
Brand Name: YD
Standard:GB/T6177, DIN6330, DIN6334, DIN5587
Certificate:ISO9001:2008
Packing: Carton,Pallet