FastenMaster FMHLGM008-250 HeadLOK Heavy-Duty Flathead Fastener, 8 Inches, 250-Count

Heavy duty structural woodscrews with aggressive thread for holding strength. Ideal replacement for M10 coach screws. Suitable for interior and exterior woodwork, including fencing, deck framing, attaching stair stringers, rigid foam (SIPs) and kitchen cabinets. Spider Drive system contains 8 points of contact, maximising bit fit and reducing stripping, with no pre-drilling required. Feature sharp gimlet point for fast installation into wood and OSB. Supplied with No.3 Spider Drive bit. Flat Head withou... - Manufacturers part numbers: 309PP|FMHLGM008-250

• Free Spider Driver bit in every package
• Patented Spider Drive virtually eliminates cam-out
• No predrilling--zips right in
• Nationally code compliant stronger design shear values than 3/8 inch lag screws