Truss 01
Framing Application

Roof Truss Screws and Fasteners

While hurricane clips are the traditional go-to for fastening trusses to a top plate, SPAX® offers engineered fasteners that will not only provide the same staying power as hurricane clips but will also streamline your building process.




SPAX® engineered fasteners are skillfully designed and tested to increase productivity and keep connections held together stronger for longer. PowerLags® reduce pre-drilling and driving torque by up to 40% while still getting 100% quality and strength – unlike any other conventional lag on the market.

Want to learn more:

Product Highlight Sheet

Truss Attachment Technical Bulletin/Installation Instruction

DrJ No. 1912-07 POWERLAGS Fastener Properties

DrJ No. 1910-02 Rev 3-01-2023 Truss/Rafter Screw Applications

We've Got You Covered

Find the right screw or fastener for your next job with the largest variety of diameters, lengths and head styles in the industry.

How Hurricane Clips Work

Hurricane clips add another level of structural integrity by securing a roof’s trusses to the home’s top plate. This lightweight metal connector attaches to one side of a roof’s truss, traveling down in a twisting design to connect to the top plate, using multiple nails to secure the clip to the surface of the truss and top place.

How T-Star Plus PowerLags® Work

Not only do these truss/rafter screws take a tenth of the time to install compared to hurricane clips, they can also reduce labor and supplies cost. In fact, they simply make the job easier overall. For instance, instead of struggling to hammer a 1.5" nail into an overhead hurricane clip in a potentially tight spot, use SPAX® hurricane screws for rafters, and complete the following steps:

  • Position the SPAX T-Star plus truss screw in a 22º diagonal upward angle from the interior, bottom corner of the top plate towards the truss
  • Drill the truss screw into the top plate, advancing it up through the rafter and into the truss

The SPAX T-Star plus truss screw’s full-thread, code-compliant construction will securely connect all your roofing elements in a way that resists the wind’s direction of force. It works the same way as a hurricane clip except it anchors in a more stable, central location and with deeper connectivity.

This truss screw is available in a 6.25" length, allowing you to safely secure your roof quickly and almost effortlessly. And because this screw fits flush with your top plate, you won’t have to worry about fitting issues during the drywall process.

Additional Advantages of the T-Star Plus Truss Screw

We’ve skillfully engineered these truss screws to increase productivity while holding connections together longer. And they’re not only the perfect solution for fastening trusses to a top plate. Thanks to the 4CUT design, there’s no need for pre-drilling, and their inventive configuration allows you to drive these truss screws with 40% less torque than other industry counterparts.

You can also use this versatile lag for other interior applications, such as connecting studs to the bottom plate and securing king studs, trimmers, and sills prior to window installation. Here are some other advantageous features of the SPAX T-STAR plus truss screw:

  • Cylindric head promotes a low splitting effect and offers superior bit engagement to eliminate camming out
  • Patented thread serrations dramatically increase installation speed by effectively cutting through wood fibers and pulling the truss screw flush to the wood substrate
  • Grade-5 durability with WIROX® coating provides superior interior structural application solutions
  • Innovative design requires 40% less torque, facilitating easy overhead driving
  • Unique 4CUT point pierces and separates wood for quick and easy installation with no pre-drilling

The SPAX T-Star plus Cylindric Head truss screw is the optimal solution for truss and rafter attachment as well as a variety of other interior fastening and framing needs. These truss screws also come with their own drive bit to ensure a snug and superb fit. You can even request a sample packet to examine these products up close before you buy. Just locate a SPAX seller near you or order online today.



Matt Risinger from Build Show discusses with Whit Smith, PE, of Smith Structural Engineers, how he designed this very cool open attic which is actually a truss but looks like a traditional rafter setup. SPAX® POWERLAGS® are showcased as an ideal replacement in this construction design for the conventional lag.

SPAX is Independently Tested and Approved

DrJ Engineering TER reports use specialized testing and industry-approved evaluations to certify that products meet specific performance requirements of the appropriate sections of the appropriate building code. We follow ICC AC257 acceptance criteria for all exterior coated screws.

IRC applies to detached one-and-two family dwellings and townhouses not more than three stories.
Code compliant icon
Building Code
IBC applies to all buildings or structures that do not conform to the IRC.


Ultimate strength engineered to help your buildings stand up to powerful coastal storms. SPAX PowerLags® Truss Screws with WIROX® coating are designed for interior framing applications and are a code-approved replacement for hurricane clips (TER no. 1910-02 Truss Rafter Properties & application). One time-saving PowerLag Truss Screw can replace an entire bracket and eliminate the need to drive additional nails, dramatically reducing installation time and saving on labor costs.

Request a Sample Pack

Examine our products up close before you buy. Just locate a SPAX seller near you or order online today.