6-13X3/4 Phillips Flat Undercut Deep Thread Wood Screw Type 17 Full Thread Zinc (Pack Qty 10,000) BC-0612DPU17D

The deeper thread design offers greater resistance to pull-out forces. Undercut head design is ideal for applications requiring shorter length fasteners as the truncated head allows for greater thread engagement C1018 - C1022 case-hardened steel 550 HV minimim