... M100, 4.Surface:Zinc, black, etc Specificationsthreaded rod, threaded stud, threaded bar1.material: Carbon Steel, Stainless Steel. brass2.size ... , ANSI ,BSW, GB. Gr 4.8-8.8.B7.4.Surface Treatment: Z.P. PLAIN, BLACK,HDG.5 ... be achieved 2000MT per month now and we always control the delivery in 30 days Packaging Detail:plastic baled ... +pallet, or according to the customers demandsr B7 stud with 2H nut