Screw type: drywall screw, subfloor screws, decking screw and chipboard screws.
1. Head type: #2 phillips bugle head, #2 square. 2. Screw size: #6, #7, #8, #9, #10 (3.5mm, 3.9mm, 4.2mm, 4.5mm). 3. Length: 19 - 75mm. 4. Thread: coarse / fine thread. 5. Point: sharp point, Tek point. 6. Coating: black phosphated, zinc plated, mechanical Galv., Ruspert, Dacrotized, Kylan¡ketc.