Simpson Strong-Tie 10 x 50mm Zinc Yellow Subflooring Collated Quik Drive Screw -

Key details: The WSV tip and thread pattern provide easy starts and up to 25% less torque – which leads to 20% faster driving; Head design provides a clean countersink and prevents cam-outs; A combination of the thread and head design gives greater clamping force to eliminate squeaking floors; WSV screws comply with AS1860.2; All screw packs include a standard Quik Drive® bit. Replacement Project Pro bits can be purchased separately.