Grade Structual Bolts (AS1252 Assembly)We are special Manufacturer is specialized in High strength steel structural bolts more than 10years, such as AS1252,A325, DIN6914 and so on.1. Standard No: AS1252,ASTM A325 bolt, A490 bolt, DIN6914 bolt, AS1252 bolt, BS43952. Material: Mild(1008/1010), Medium ......