1. Certificated to ISO9001:2008; 2. High quality products, competitive price and on-time delivery; 3. ... Strength Carbon/Alloy Steel Bolt Specification 1.Main Size: (5/8"-2") × (1 1/2"-18")L ; M16-M642.Material:Carbon steel or ... : Zinc-plated(Black or Plain), Hot dip galvanizing, Dacromet,etc. 5.An inquiry shall include product name, standard, size, property class ...