TimberLOK® Heavy Duty Wood Screws are designed with shear values stronger than 3/8 inch lag screws. The sharp point and aggressive thread angle penetrate the densest woods without pre-drilling. A uniquely tapered head countersinks easily into wood for a sharp flush appearance. TimberLOK® screws come with a proprietary three-step Xylan® coating process that protects against corrosion, even in pressure treated wood. TimberLOK® screws are ACQ approved. #14 diameter shank.

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.

Replacement driver bit for FastenMaster's HeadLOK® Heavy Duty Flathead Fasteners. 2 per package.

LedgerLOK® is the first fastener engineered to attach deck ledger boards to a wooden house structure with no pre-drilling. LedgerLOK® is approved in ACQ pressure treated lumber. The built-in washer head eliminates the need for an additional washer, saving time and money. #14 diameter shank.

The TrussLOK® Engineered Wood Fastener is designed for joining multi-ply LVL, LSL and PSL. This fastener was developed with direct input from a leader in engineered wood, Trus Joist®. TrussLOK® is faster, easier and stronger than through-bolts and other structural self-drilling fasteners with similar diameters. TrussLOK® is approved for single-sided installation unlike nails and other screws of similar diameter that need to be installed from both sides. #14 diameter shank.

TrussLOK-Z® are engineered for joining two, three and four-ply girder trusses. TrussLOK-Z® require no pre-drilling and are engineered for single-sided installation. The thread length is correct for dimensional lumber, eliminating board jacking and pulling trusses together during installation. TrussLOK-Z® can also be used with 1 1/2" thick LSL and LVL truss chords. #14 diameter shank.

ThruLOK® is the newest edition to the FastenMaster LOK Line of structural wood-to-wood fasteners. ThruLOK® offers the speed of a LOK Line product and the strength of a through-bolted connection. ThruLOK® is a three-part assembly including a ThruLOK® fastener featuring the patent-pending Paddle Point, engineered washer and LOK-Nut.

OlyLog® is the first threaded log home fastener which requires no pre-drilling and is ACQ approved. Since its introduction, OlyLog® has changed the way log homes are constructed. #14 diameter shank.

LogHog® is an extra heavy duty log home fastener, engineered for specific home construction applications. The LogHog®, with its oversized head, thicker diameter and additional thread, offers increased drawn-down and holding power. This fastener is corrosion resistant guaranteed.

The LogHog-SR® resists the settling of logs in log home structures with no pre-drilling. The unique dual thread technology draws logs together and holds them firmly in place.

GutterScrew™ enables you to replace old popping gutter spikes once and for all. Over-sized threads are wider than gutter spikes, so they fill old worn spike holes tightly. No water gets into your house. This heavy duty fastener provides unmatched holding power even in old spike holes.

The Cortex Hidden Fastening System is the fastest, easiest way to hide the heads of your deck screws on market-leading deck board types. Set the screw, set the plug, and you’re all set. Cortex offers a strong connection between the deck board and the joist and can hide fasteners across the entire deck: first and last board, perimeter, and stairs.

The Cortex Hidden Fastening System is the fastest, easiest way to hide the heads of your deck screws on market-leading deck board types. Set the screw, set the plug, and you’re all set. Cortex offers a strong connection between the deck board and the joist and can hide fasteners across the entire deck: first and last board, perimeter, and stairs.

The Cortex Hidden Fastening System is the fastest, easiest way to hide the heads of your deck screws on market-leading deck board types. Set the screw, set the plug, and you’re all set. Cortex offers a strong connection between the deck board and the joist and can hide fasteners across the entire deck: first and last board, perimeter, and stairs.

The Cortex Hidden Fastening System is the fastest, easiest way to hide the heads of your deck screws on market-leading deck board types. Set the screw, set the plug, and you’re all set. Cortex offers a strong connection between the deck board and the joist and can hide fasteners across the entire deck: first and last board, perimeter, and stairs.