... M5-M20 1/4''-5/8'' Length: 6mm-300mm 2)Standard:DIN, UNC/UNF,BSW,GB 3)Grade:4.8 8 ... -M20 1/4''-5/8'' Length:3/8''-12''2)Standard:DIN UNC/UNF BSW JIS ISO3)Grade:Carbon Steel:4 ... ,Thread Bar,Wooden Screw,Anchor Furniture Screw,Nuts,Washer and Non-standard Parts) If you are interested in these products,Pls don ... with a twenty-five years old factories, the export rate of more than 85% Non-standard parts bolt