FastenMaster HeadLOK Black Steel Flat Head Wood Screws 10″ FMHLGMO10-12 (12 PK) FastenMaster HeadLOK is a heavy duty wood screw that does it all with an internal drive and flat head. HeadLOK offers higher design shear than 3/8″ lag screws and no predrilling is needed. HeadLOK zips right in and creates a great finished look. HeadLOK is ideal for many wood-to-wood applications including decks, fences, kitchen cabinets and more. The patented SpiderDrive 8 point star bit eliminates cam-out and improves installation speed. The sleek black coating and flat headed design make it perfect for those who value superior craftsmanship. HeadLOK is guaranteed to last for the life of the project. Includes 12, 10 inch flat head wood screws, and 1 SpiderDrive bit. Introduced in 2007, HeadLOK was the industries first flat headed structural fastener to meet code, and has since been trusted by countless PROs and DIYers in all types of applications. Versatile structural wood screw for applications such as attaching rafter or trusses to the top plate, headers, stair stringers and more Includes 12, 10 inch flat head wood screws, and 1 SpiderDrive bit Installs in a fraction of the time versus traditional lag bolts with fewer steps and less effort Replaces 3/8 inch lag bolts with no predrilling required Tapered heads countersink easily into wood Sharp points and aggressive threads help penetrate dense woods without pre-drilling and provide strong shear values Heads stamped for easy code inspection Head style allows for countersinking during installation 2″ of thread for greater holding strength Sharp point for fast installation Tested and supported by engineering data that conforms to the most current ICC standards (ICC-ES ESR-1078) – approved for use in ACQ or treated lumber