14 x 8 1/2 HeadLOK® Heavy Duty Flathead Fastener (250) . HeadLOK® is a heavy duty wood screw that does it all and won't countersink. HeadLOK® offers higher design shear than 3/8" lag screws and no pre-drilling is needed. HeadLOK® zips right in and is ideal for many wood-to-wood applications including decks, fences, SIPs, kitchen cabinets and more.

• Stronger design shear values than 3/8" lags
• Sharp gimlet point for fast installation into wood and OSB
• Aggressive thread for holding and withdrawal strength
• Free Spider Drive bit in every package