Fastenmaster Timberlok Screw 8 in. Blister Pack

Fastenmaster Timberlok Screws are engineered for demanding wood-to-wood connections where strength and speed matter. Their sharp point and aggressive threads bite into dense timbers without pre-drilling, delivering superior shear values compared to traditional lag screws. The tapered hex head countersinks cleanly for a flush finish, while the external-hex drive provides positive bit engagement for fast, reliable installs.

Constructed from high-quality alloy steel with a durable black finish, these screws are ACQ approved and nationally code compliant (IBC/IRC ESR #1078). Each screw is head-stamped for easy inspection and guaranteed corrosion resistance for the life of your project. Ideal for deck framing, fencing, retaining walls and any structural timber assemblies, this 12-count blister pack even includes a complimentary 5/16″ hex driver bit for immediate use.

Key Features

• Sharp point and aggressive double-cut threads for fast penetration without pre-drilling
• Unique tapered hex head design for clean countersinking
• External hex drive for positive bit engagement and rapid installation
• ACQ approved and nationally code compliant (IBC/IRC ESR #1078)
• Head-stamped for quick on-site code inspection
• Guaranteed corrosion resistance for the life of your project