Name: bolt 1)M5-M20 1/4''-5/8'' Length: 6mm-300mm 2)DIN, UNC/UNF,BSW,GB 3)4.8 8.8 10.9 SS201 SS304 SS312 SS316... Model N carriage bolts Surface:z.p,black,hot dip,dacromet Size:5-20*15-400 1/4"-3/4"*1/2"-12" 4.8,5.8,6.8,8.8,10.9.12.9carriage bolts1) Various kinds of bolts available2) Can be made with different tensile strength, such as Class 4.6, 4.8, 5.6, 5.8,6.8, 8.8, 10.9 and 12.9, inperial ...