HeadLOK vs TimberLOK Screws

You know it's true: The right fastener shapes the outcome of your project, helping pave the way for efficiency and excellent results. Kind of like that reliable sidekick helping the superhero save the day (yes, that makes you the superhero). While it may not determine the fate of the world, your fastener pick certainly impacts the quality of your deck, framing, or stair projects. Understanding your options is key.

We get asked a lot about the difference between two popular screw options from FastenMaster: HeadLOK and TimberLOK. These structural wood screws are both members of the industry-leading LOK League—make that LOK Line—and are designed to provide exceptional strength and durability, replacing traditional bolts with a faster, easier installation. So, which one should you choose?

FastenMaster HeadLOK and TimberLOK Structural Wood Screws
FastenMaster HeadLOK and TimberLOK Structural Wood Screws

Let’s dive into a head-to-head comparison of HeadLOK and TimberLOK screws so you can make the best choice for your next project, starting with this quick overview:

Features HeadLOK TimberLOK
Example Usages Deck and stair framing, SIPs, rigid foam, kitchen cabinets, etc. Rafters, trusses, landscape walls, fences, headers, stair stringers, post and beam, etc.
Head Style Black flat head Black tapered hex head
Point Gimlet Gimlet
Countersinking Non-countersinking Countersinking
Lengths 2 7/8", 4 1/2", and 6" 2 1/2", 4 ", 6", 8" and 10"
Included Accessories SpiderDrive bit Hex bit
Installation 1/2" high torque drill (18V Cordless or higher) 1/2" high torque drill (18V Cordless or higher)

Both screw options are IBC/IRC code complaint, ACQ approved, corrosion resistant, and require no pre-drilling.

Now, let's get into the details of each...

HeadLOK: The Versatile Powerhouse

When it comes to attaching decking, railing, and other structural elements to wood, grab FastenMaster HeadLOK. HeadLOK is a do-it-all wood screw with stronger design shear values than 3/8” lags and dramatically increased pull-through power.

HeadLOK's sharp gimlet point and deep-thread design provide fast installations with exceptional holding and withdrawal strength. There's no need for predrilling, even in dense woods. Its 5/8" flat non-countersinking head and SpiderDrive recess ensure a secure, robust connection with a low-profile appearance. Plus, each package includes a free, specialized SpiderDrive bit to zip through your projects.

FastenMaster HeadLOK installation and features

SpiderDrive

If you're not familiar with SpiderDrive, we're not talking about swinging through the city like a web-slinger. Although just as amazing, FastenMaster's Spider Drive is something entirely different:

Specially designed to drive FastenMaster HeadLOK screws, the SpiderDrive system is an alternative to 6-lobe options that features 8 points of bit contact for fast and easy installations. Unlike many star-shaped alternatives that can have a loose fit within the recess, SpiderDrive offers maximized fit with high bit engagement for improved drivability and reduced cam-out.

FastenMaster HeadLOK Screw

The strength of HeadLOK is its versatility: It's able to tackle a range of wood-to-wood applications. Whether you're building decks or hanging kitchen cabinets, HeadLOK is the Arthur to your Tick (IYKYK), helping you get the job done. It even excels at fastening OBS sheathing as well as structural insulated panels and rigid foam for energy retrofits.

HeadLOK is corrosion-resistant and ACQ approved for all your exterior projects and meets the most current ICC standards. Of course.

TimberLOK: The Heavy-Duty Champ


Fastenmaster TimberLOK is a heavy-duty wood screw that replaces 3/8” lag screws, and also delivers on a range of applications. Whether you're attaching rafters or trusses to the top plate, landscape timbers, decks, fences, headers, or stair stringers, TimberLOK has you covered.

FastenMaster TimberLOK installation and features

Superman may have the strength of ten men, but did you know that TimberLOK has the strength of ten nails... plus a hurricane tie? Check out Replacing Hurricane Ties with Truss Screws to find out how a 6” TimberLOK can make your rafter and truss to top plate connections faster, stronger, and more economically than a standard H2.5A hurricane tie. Talk about superpowers.

Like HeadLOK, TimberLOK eliminates the need for predrilling, making for easy, Flash-fast installations, while its countersinking head ensures a flush finish.

FastenMaster TimberLOK Screw

The various lengths of TimberLOK make it a great choice for whatever your project schedule throws at you. Here are some suggestions:

TimberLOK Length Typical Applications
2 1/2" Doubling/sistering up 2x header or carrying beams
4" Attaching 2x to 4x structures, fencing
6" Replacing hurricane ties on rafters or trusses. Joining multiple 4x timbers
8" Building up 6x landscape walls
10" Post and Beam construction

And, like the rest of the LOK Line by FastenMaster, TimberLOK is high-quality, rigorously-tested and code-approved to improve structural integrity and work and cost efficiency. In a word: Super.

Dynamic Duo

HeadLOK and TimberLOK are two formidable fasteners that excel in delivering exceptional performance. With their impressive holding power, reliable connections, and ease of installation, these screws are your trusted allies across a range of construction applications. Choose HeadLOK and TimberLOK to unlock the potential of your projects, achieve outstanding results, and become the hero of the jobsite!

Up, up, and away!
Or would that be Down, down, and... securely anchored?
Hm.


Check your local building codes before starting your projects and follow all rules, regulations, and requirements.