1) Type: Hexagon Head Bolts & Hexagon Head Nuts

2) Material: Carbon steel
3) Finish: zinc plated, nickel plated, hot dipped galvanized, black
4) Standards: DIN, ANSI/ASME, JIS, BS
5) produce according to customers' drawings or samples
6) Diameter: range: M4-24 or 1/4''--1-1/8''
7) length range: 6-300mm
8) Grade: 4.8,5.8, 6.8, 8.8

9) DIN931 & DIN934 are in picture.