... as DIN,JIS,GB 4.COMPETITIVE PRICE 5.Bolt,Nut,Screw Specifications1.Name: DIN 931 bolt 2.Material:Carbon Steel3.Size:M3-M100 ... JIS,BS,FR and GB,Nonstandard bolt(according to your order),etc3.MaterialCarbon Steel,Alloy steel,stainless steel and brass4.Grade4.8,6.8 ... 2004 we invest Hunan Lengshuijiang Boda Steel Co.,Ltd and established Lengshuijiang Boqiang Rivet and Screw Steel Co.,Ltd which is capable of ...