55mm long Hex head self drilling Tek screws for fixings in to thick heavy Hot Rolled steel work. For fixing cladding sheets or metalwork such as brackets to heavy section steel. These have a longer drill bit on the screw and a fine thead.

Used for attaching metal to heavy section steel (Max. 12mm) without the need to pre-drill a hole. NOTE: Partially threaded.

• Exterior plating gives a reliable and durable corrosion resistant coating which resists 500 hours salt-spray