Dock 1
Dock / Marine Application

Freshwater Dock Screws and Fasteners

Build the strongest, longest-lasting docks with SPAX®. SPAX Stainless Steel fasteners provide superior strength and corrosion resistance on freshwater docks.



Spax® Engineered Fasteners for Freshwater Dock and Marine Applications

There are different types of docks, including: floating docks, crib docks, pile docks, lift docks, and pipe docks. Each type may have advantages or disadvantages depending on setup and what you’re trying to achieve.

Similar materials are often used for dock tops that would be found in decking applications, for example they might be made of plastic, composite or PVC, treated lumber, or they may be made of an exotic hardwood. Also, much like decking, docks are structural and it’s critical that proper construction methods and techniques are used when building them to ensure not only longevity of the structure but also to maintain safety for users.

Docks can be a very large investment, and it’s something that’s visible and something that will often times get a lot of use, so building it right matters!

Things to Consider When Building a Dock

When it comes to many structural applications within dock building, SPAX® has an array of fasteners that are exterior HCR® coated, in order to provide longevity within the structure. Likewise on the dock top, SPAX has a wide array of fasteners to support your build, whether using a composite type board, treated lumber, or hardwood lumber. Additionally, SPAX offers a wide variety of screws in type 304 stainless steel in order to ensure long lasting connections.

Please note, in certain applications Stainless Steel fasteners should be used, and depending on building code, type 316 may be required.

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.

Related Products



High Performance. High Value.

The largest selection of code-recognized structural wood-to-wood fasteners in the industry!

TER 1912 07 1920x1080


SPAX offer the largest selection of code-recognized structural wood-to-wood fasteners in the industry.


AWPA Building Codes

Building code officials are required to have in-depth knowledge of all types of construction methods and thousands of different products used in modern buildings. The International Code Council’s committees recognize AWPA as the authority on treated wood and have directly referenced AWPA Standards in the International Building Code and International Residential Code in applications where preservative treated wood is required.

The Use Categories are a shorthand method of describing the various hazards to which wood products may be exposed. A brief description of the Use Categories is shown.

Information referenced from the AWPA site.

Use categoryBrief description
UC1Interior Dry
UC2Interior Wet
UC3AExterior Above Ground, Coated with Rapid Water Runoff
UC3BExterior Above Ground, Uncoated or Poor Water Runoff
UC4AGround Contact, General Use
UC4BGround Contact, Heavy Duty
UC4CGround Contact, Extreme Duty
UC5AMarine Use, Northern Water (Salt or Brackish Water)
UC5BMarine Use, Central Water (Salt or Brackish Water)
UC5CMarine Use, Southern Water (Salt or Brackish Water)
UCFAInterior Above Ground Fire Protection
UCFBExterior Above Ground Fire Protection

Exterior Treated Lumber Approved Fastener Coatings

Graphic of Screw Top


HCR is a dual-barrier coating system designed to extend the longevity of SPAX® fasteners in ground-contact, treated lumber and exterior freshwater applications. Plated with a zinc base coat and finished with a durable top coat, they are engineered to withstand the toughest conditions.

NOTE: HCR® coating comes in black, white, and yellow.

Graphic of Screw Top


HCR-X is a SPAX-developed, proprietary, dual- barrier coating system with superior corrosion protection against red rust, designed for use in both treated lumber and freshwater environments.

Graphic of Screw Top

Stainless Steel

304 stainless steel fasteners provide code- compliant use in ground-contact, pressure-treated, and fire-retardant-treated lumber in general and coastal construction projects. They’re well-suited for use with cedar and redwood decking.

Refer to FRT manufacturer for recommendations on fastener coatings into FRT lumber.
NOTE: SPAX® recommends stainless steel for cedar & redwood applications.

Request a Sample Pack

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