FastenMaster

FastenMaster delivers innovative fastening solutions—engineered for pro contractors who demand strength, speed, and precision on every job.

*Product mix varies by location, please check with your local branch for product availability.

TimberLOK Structural Wood Screw

Have a question?

Find your sales team here.

Customer Portal

TimberLOK

FastenMaster TimberLOK® is a heavy-duty wood screw designed to replace lag bolts in structural wood-to-wood connections. It drives fast with no predrilling and delivers superior holding power in a variety of applications.

TimberLOK is ideal for attaching rafters, trusses, ledger boards, and landscape timbers. With its aggressive thread design and corrosion-resistant coating, it ensures strength and longevity in both interior and exterior use.

Product Details

Features & Benefits

Lag Screw Replacement – Engineered to replace traditional lags in structural applications.
No Predrilling Needed – Installs easily with a standard impact driver, saving time and effort.
Code-Compliant Strength – ICC-ES approved for structural wood connections.

Versatile Applications – Perfect for rafters, trusses, deck framing, and landscape timbers.
Aggressive Thread Design – Provides high pull-out and shear strength for secure fastening.
Exterior Coating – Rust-resistant finish for use in treated lumber and outdoor conditions.