Pro Desk

Driving Confidence in Every Connection


Eliminate pre-drilling, increase driving torque without the risk of stripping with SPAX® PowerLags. Each precision engineered fastener, multi-purpose screw, and PowerLags® structural screws helps you move faster on the job site, while driving greater confidence. Our construction products provide greater tensile strength per fastener, so your projects will stay connected stronger for longer.

Buy SPAX® screws and PowerLags in bulk from wholesalers, dealers and specialty distributers or in project-appropriate package sizes at retail hardware and home improvement stores. We manufacturer high-quality structural screws and fastener solutions for contractors and builders, request a sample pack today.

Amplify Your Craft

Professional Grade Construction Fasteners

Performance Backed by Results

Our purpose is simple – deliver the greatest return on every effort, so you get the best possible results for your business. SPAX engineered fasteners drive like butter and hold like iron. When your work demands the highest structural integrity and efficiency, choose SPAX.

Innovations For Every Project

Close up of green SPAX PowerLag screw with numbered areas of detail

PowerLags® Engineered Fasteners

The perfect solution for structural exterior and interior wood-to-wood connections.

  1. T-STAR head for reduced stripping

  2. Built-on washer offers outstanding clamping force with a low profile for improved aesthetics

  3. Patented serrations require 40% less torque with zero pre-drilling

  4. HCR® Coating is IRC/IBC code compliant for use in treated lumber and exterior exposure condition 3 (general construction)

  5. Heat-treated Grade-5 durability


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Close up of SPAX engineered fastener with numbered areas of detail

Multi-Purpose Engineered Fasteners

For a wide range of construction applications including wood, concrete, masonry, sheet metal and plastic.

  1. T-STAR plus head provides superior bit engagement at nearly any angle
  2. Patented MULTIhead provides flush countersink finish in wood
  3. Patented serrations require 40% less torque with zero pre-drilling
  4. 4CUT point prevents board splitting
  5. Heat-treated Grade-5 durability 

Multi-Purpose Construction

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Close up of SPAX stainless steel exterior construction screws with numbered areas of detail

Stainless Steel Engineered Fasteners

For exterior treated lumber decks, including Cedar, Redwoods and coastal environments. 

  1. Low-profile head is perfect for improving deck aesthetics
  2. T-STAR plus trim head provides superior bit engagement at nearly any angle
  3. Double ThreadLok™ pulls and holds boards tight
  4. Patented serrations require 40% less torque with zero pre-drilling
  5. 4CUT point prevents board splitting
  6. 304 stainless steel offers premium corrosion resistance 

Stainless Steel Deck and Construction

Quick Reference Guide

Download this PDF as a quick reference outlining our products, applications and code certifications.

Download Guide

Meeting (And Exceeding) Expectations

SPAX engineered fasteners are building code recognized for use in construction applications.
All SPAX Powerlags have been comprehensively tested to ensure only the highest quality engineered fasteners make it to market.

Contractor drilling SPAX screw to attach deck ledger board
Deck Ledger Application

Download the Code Bulletin

Deck joists connected with SPAX fasteners
Multi-Ply Application

Download the Code Bulletin

Fasteners For Any Application

We created this quick guide to help you choose the right fastener for your specific needs. Explore the sections below for links to the best fasteners for a wide range of construction applications, from kitchen & bath remodeling to PTL construction. If you need more help finding what you need, simply contact us.

Pressure-Treated Lumber
  • SPAX advanced engineering & patented technology eliminates pre-drilling and reduces splitting at the end of deck boards
  • Superior structural integrity reduces the number of fasteners required per square foot by 10% for deck projects

Products: HCR Coating Fasteners, HCR-X Coating Fasteners, Stainless Steel Fasteners

Kitchen & Bath Remodeling
  • Our products are tested and proven to ensure high shear strength to keep cabinets confidently held on the wall
  • Helps increase productivity and reduce time spent on each job so you can move on to the next job faster

Products: Yellow Zinc Coating Wafer Head Fasteners, Zinc Coating Trim Head MDF Fasteners

Framing Construction
  • PowerLags eliminate squeaks while protecting expensive flooring for more satisfied new homeowners
  • Extreme testing in a range of different wood types ensures maximum shear strength even in extreme conditions

Products: Yellow Zinc Coating T-Star Head PowerLags , Zinc Coating Hex Head PowerLags

Code Bulletin: Multi-Ply (LVL Beams and Girder Truss)

Outdoor Projects
  • Drill confidence into every connection: the highest-tested engineered fastener in the industry for ultimate structural integrity and fewer failures
  • SPAX engineered fasteners are climate-tested with advanced coatings to withstand the elements and provide ultimate durability

Products: HCR Coating Fasteners, HCR-X Coating Fasteners, Stainless Steel Fasteners

Code Bulletin: Deck Ledger

The SPAX Factor™

A simple formula for working smarter. To multiply results and reduce effort—just add SPAX.

Once you try SPAX Engineered Fasteners, you won’t settle for anything else.
Feel the difference, request your sample pack today.

Request a sample


Where are SPAX fasteners available?

SPAX fasteners are available at most local home improvement retailers, industrial supply houses and online specialty woodworking outlets in the U.S. We are currently working to build a nationwide network of lumberyard and building materials suppliers.

Do your fasteners require pre-drilling for ICC and DrJ code-compliance?

No. Unlike traditional lags, SPAX PowerLags are IRC/IBC code compliant and DrJ code-compliant for deck ledger attachment multi-ply applications and do not require pre-drilling for full strength ratings, offering dramatically increased installation speed across your projects.

Can I use SPAX engineered fasteners in treated lumber?

Yes! Our 304 series stainless steel deck and construction screws, as well as our multi-purpose construction screws with HCR-X and PowerLags with high corrosion resistant (HCR) coatings are compatible with ACQ lumber. Reference the chart above for more information on our protective coatings.