... , 16-200mm Grade:45,50,60,70,80 Expansion anchor boltSpecification:1.Size: M6-M24, 16-200MM2.Grade: 45,50,60,70,80 ... 304,316, austeniteA1,A2,A42.we also have carbon steel expansion bolt, and grade:4.8,5.6,6.8,8 ... then in carton or as per your request. stianless steel expansion anchor bolts