9-10X1 1/2 Phillips Flat Head w/Nibs Deep Thread Wood Screw Type 17 Point 2/3 Thread Zinc (Pack Qty 3,500) BC-0924DPF17

The deeper thread design offers greater resistance to pull-out forces. The chip cavity (or auger point) enables the fastener to drive especially in denser woods—without pre-drilling a pilot hole C1018 - C1022 case-hardened steel Vickers HV 550 minimim