... A490), JISB1186 AS1252Grade:8.8S, 10.9S , Size:M12-M36 Material:Carbon Steel,Alloy Steel 1> Description: High strength bolt, tension ... carton and wooden pallet or wooden boxbolts and nuts 1.material:40Cr, 35CrMo 2.surface:zinc plated,phosphated 3.size: ... other friction-link project. I bolt steel companies choosing the material quality, production, advanced technology, reliable quality, low price Steel ...