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.

FlatLOK Structural Wood Screw

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FlatLok

FastenMaster FlatLOK® is a heavy-duty structural wood screw designed to replace through-bolts and nails in multi-ply connections. It installs quickly with no predrilling required and provides a flush finish thanks to its flat head design.

FlatLOK is ICC-approved for use in critical load-bearing applications like beams, headers, and girder trusses. It’s the go-to fastener for strong, secure, and code-compliant wood-to-wood framing connections.

Product Details

Features & Benefits

Flat Head Design – Allows for flush installation in multi-ply connections with no protruding hardware.
No Predrilling Needed – Installs fast with a standard impact driver, saving time on the job site.
Code-Compliant – ICC-ES evaluated for structural applications in wood framing.

High Shear Strength – Ideal for multi-ply beam connections, LVL, and girder trusses.
Available in Multiple Lengths – Fits a variety of framing configurations and thicknesses.
Exterior Coating – Features a durable coating for corrosion resistance in outdoor or treated lumber use.