1.Main Size:M16~M36,length:35mm~260mm or according to the request of customers;

2.Material:Carbon steel or alloy steel;

3.Standard: ASTM A325/A490;

4.The Mechanical Grade:10.9S/8.8S;

5.Surface Treatment:Zinc-plated(Black or Plain),Hot dip galvanizing,Dacromet,etc;

6.Used in steel structures,such as multi-floor&high-rise steel structure buildings,industrial buildings,high way,railway,steel steam,tower,power station,airport and other structure workshop frames;

All products we can do as per international standard as customer’s request with high quality and best price.Welcome your inquiries!