We have many items of the products with different materials and size etc. to be chosen according to buyers' requirements
Size: all sizes
Standards: JIS, ANSI, ASTM, DIN, BS, GB
Specification: M20-M48
Surface finish:zinc plated, HDG, black,plain
materials:40Cr,38Crmo-42Crmo etc.
Hardness grade: 8.8s,10.9s ,12.9s
high strength bolt(carriage bolt,hexagon bolt)),8.8 GLASS,
high strength bolt(carriage bolt,hexagon bolt)),8.8GLASS,BLACK
Our production is in compliance with ISO, DIN, BS,ANSI and JIS s