Material :carbon steel, low-carbon and mid-carbon steel
Surface finish:zinc plated, HDG, black,plain
Specification: M2-M8
Standards: JIS, ANSI, ASTM, DIN, BS, GB
We have many items of the products with different materials and size etc. to be chosen according to buyers' requirements
fastener ,washer including external washer ,internal washer
external tooth washer
In washer area we made it for 20 years,with advance skill and the latest machine,(external washer,fastener,internal washer) easy