(1) Standard: ASTM A193.
(2) Grade: B7/B7M, B16, B8/B8M.
(3) Size: M6-M100, 1/4"-4".
(4) Material: Alloy Steel.
(5) Surface: black, plain, zinc, zinc yellow, PTFE, HDG,etc.
(6) Packing: 1. less than 25kgs bulk into carton, then packed on pallet 2. Small box or color box, then into carton, then packed on pallet 3. As customers' request.
A193 B7 Heavy Hex Bolts