... 5.Surface Treatment: HDG &Electric Galvanized, Self Color6. With T-Bolt and regular nut and flanged nut7. Standard: BS1139&EN74 Class ... beam/girder coupler, putlog coupler, plank coupler, sleeve coupler, joint pin, single coupler, etc. +We also provide standard, ledger, transom, ... universal jack, base plate, and accessories such as T bolt, eye bolt, hex nut, flange nut. +Our pressed fixed/swivel clamp ...