ForgeFix ForgeFast Wood Screws have a universally accepted, Torx(r) compatible drive. Their recessed ribs provide improved countersinking and reduced surface dust, and their reinforced countersunk necks improve holding power. The screws have a patented drill and drive thread for reduced splitting of the timber, reduced 'jacking' and spinning of joined timber, increased pull-out and a firmer fix. A sharp point provides faster bite and is capable of piercing 0.8mm steel. The screws have an 'Elementech 400' coating providing an anti-corrosive metal finish, which lasts up to 6 times longer than standard zinc coatings. The coating is environmentally friendly and does not contain Cr6. It is Salt Spray tested to 400 hours. The screws are suitable for interior use. Every box is supplied with a Torx(r) compatible bit. Size: 4.5 x 50mm. Box quantity: 200.