Bolts-with Hexagon / Square / CSK / T / Allen Head, Nuts/Lock Nuts- Hexagon/Square/Round, Roofing Bolts/Staright threaded Rods of 'J' or 'L' type etc., Pipe supporting 'U' Bolts / Clamps, Tie rods / Sag rods, Foundatiopn bolts / Anchor bolts etc, Rivets, Punched / Machined washers, Studs, Fish Bolt, Grating.