High Strength Friction Grip (HSFG) more commonly known as Structural Assemblies. The High Strength Structural Assemblies come with one Bolt, one Nut and one Flat washer in Hot Dip Galvanized. Conforms to AS/NZS 1252. We can also supply extra HS Nuts & Washers if required. A Certificate can be supplied at the time of ordering.
Max Hexagon head Across the Flats ( AF ) = 21mm