FastenMaster #9 x 10 in. HeadLOK Black 6-Lobe Drive Flat Head Structural Wood Screw (50 Pack)

The HeadLOK flat head fastener is a heavy-duty structural wood screw requiring no predrilling and offers higher design shear than 3/8 in. lag screws. HeadLOK zips right in and creates a great finished look. It is ideal for many wood-to-wood applications including decks, fences, SIPs kitchen cabinets and more. The patented SpiderDrive eliminates cam-out and improves installation speed.