General description A traditional heavy-duty woodscrew primarily used for timber-to-timber applications, attaching ironmongery to timber, or into masonry with the use of a nylon plug. Pilot drill holes may be required into certain hardwoods. Technical specifications Size: 12.0 x 50 mm Pack Type: Box Pack Quantity: 100 Finish: Zinc Head Type: Hex Thread Type: 60° Self-Tapping Thread Thread Diameter: 12 mm Thread Length: 30 mm Point Type: Sharp Material: Carbon Steel Corrosion Rating: 1 (Clean, dry & low humidity environments) Substrates: Hardwood, Softwood, Brick (with plug) CE Standard: BS EN 14592:2008 DIN: DIN 571 Usage Primarily used for metal to timber connections or to join heavy timbers. Ideal for applications where joints see heavy use. Other information Thread length is approximately 2/3 of the overall length of the screw (e.g., for a 100 mm screw, the thread length is approximately 60 mm).