Description

Key Features

Bolt-Look Finish

This washer gives wood connections the look of a bolted assembly without the extra work of through-bolting. That matters when the hardware is part of the finished look on pergolas, arbors, and exposed framing.

Load-Rated System

When paired with the matching Outdoor Accents structural wood screw, the Simpson Strong-Tie STN22-R24 Outdoor Accents Hex-Head Washer becomes part of a structural load-rated fastening solution. You get the finished appearance and the engineering behind it.

Exterior-Ready Coating

The black Quik Guard coating is built for exterior use and helps the washer hold up in outdoor wood construction. It is a good fit when you want decorative black hardware on decks and backyard structures.

Overview

The Simpson Strong-Tie STN22-R24 Outdoor Accents Hex-Head Washer is a decorative structural washer for exposed outdoor wood connections. This is a hex-head washer designed for fastening wood-to-wood connections with compatible Outdoor Accents structural wood screws. Model Number STN22-R24 comes in a 24-count pack and is built for projects where the hardware needs to look clean and intentional instead of hidden.

What makes this part useful is the way it bridges appearance and performance. Instead of setting up a traditional through-bolt connection just to get that heavy timber look, this washer works with the Outdoor Accents structural wood screw to create the same visual style with faster installation. Simpson Strong-Tie also lists this combination as a structural load-rated solution, so it is not just decorative trim hardware.

The washer uses a black Quik Guard coating for exterior use, which is the right call for decks, pergolas, arbors, gazebos, and other exposed wood structures. On jobs where black hardware is part of the design, this finish gives you a consistent look across compatible Outdoor Accents connectors and fasteners. The steel body and formed hex-head shape are there for both durability and appearance.

Size matters on decorative hardware, and this washer is large enough to actually show up once the project is assembled. The washer diameter is about 1-1/2 in., and the hex-head section is about 1 in. across. That gives the connection a bold finished look that works well on posts, beams, and other visible framing members.

This washer is also a practical jobsite part. It is easy to install, and it is intended to be used specifically with Outdoor Accents structural wood screws, including 3-1/2 in. and 5-1/2 in. versions called out in the product information. That means you are buying into a matched system instead of piecing together a look from unrelated hardware. If you want published load values, correct fastener selection and placement still matter.

Who should buy it? Contractors, deck builders, pergola installers, and serious DIYers who want structural outdoor wood connections to look finished, not improvised. If you are building a project where the hardware stays visible, the STN22-R24 makes a lot more sense than plain washers or fake bolt heads because it is part of a real fastening system designed for this exact application.

Gets the Outdoor Timber Look Without Through-Bolting

This is the kind of hardware detail people actually notice once the build is done. The formed hex-head washer gives exposed connections a clean, intentional bolt-style look on outdoor structures.

• Designed to provide the decorative appearance of a bolt connection
• Useful anywhere the hardware stays visible, like posts, bases, straps, and angles

Built to Work as Part of the Fastening System

The washer is not meant to do the job alone. It is designed to pair with Outdoor Accents structural wood screws so you get the right look and the right connection method at the same time.

• Combined with Outdoor Accents structural wood screw models, it provides a structural load-rated solution
• Product literature calls out use with 3-1/2 in. and 5-1/2 in. Outdoor Accents structural wood screws

Exterior Finish That Matches the Rest of the Outdoor Accents Line

On decorative outdoor builds, mismatched hardware sticks out fast. This washer uses Simpson Strong-Tie’s black Quik Guard coating so it fits the Outdoor Accents aesthetic and is suited for exterior conditions.

• Black Quik Guard coating for exterior use
• Steel construction with a washer diameter of about 1-1/2 in. and hex-head size of about 1 in.

What’s in the Box

• (24) Outdoor Accents hex-head washers

Structural wood screws are sold separately.

Key Specifications

Material	Steel
Finish	Black Quik Guard coating
Application	Fastening wood-to-wood
Washer Diameter	1-1/2 in. (1.469 in.)
Hex-Head Size	1 in. (1.047 in.)
Package Quantity	24
Compliance	IAPMO-UES ER-192
Series	Outdoor Accents

Compatibility

Fastener Pairing

Designed to be used with Outdoor Accents structural wood screws for a decorative, structural connection.

Called-Out Screw Lengths

Product information specifically calls out installation with 3-1/2 in. and 5-1/2 in. Outdoor Accents structural wood screws.

Outdoor Accents Hardware

Made to coordinate with Outdoor Accents decorative hardware including post bases, T and L straps, and angles.

Built For

Deck Building Pergolas Arbors Gazebos Outdoor Structures Wood-to-Wood Connections General Contracting DIY / Hobbyist

Pro Tip

If you want the published load values, treat this as a system part, not a stand-alone washer. Pair it with the correct Outdoor Accents structural wood screw and install it in the specified location instead of mixing it with random fasteners.

Warranty & Support

Manufacturer warranty listed: none.

Tool Nut’s Take

Tool Nut’s Take

Small Part, Big Difference on a Finished Build

The Simpson Strong-Tie STN22-R24 Outdoor Accents Hex-Head Washer is the kind of hardware upgrade that makes an outdoor project look planned instead of pieced together.

• Who it’s for: Builders and DIYers working on decks, pergolas, gazebos, and other outdoor wood structures where the hardware stays visible.
• Why it stands out: It gives you the bolt-head look, works with the Outdoor Accents screw system, and keeps everything visually consistent with the rest of the Outdoor Accents line.
• Worth knowing: This is a 24-pack of washers only. To get the structural benefit, you need the matching Outdoor Accents structural wood screws sold separately.

Common Questions

• Is this washer structural by itself? No. Simpson Strong-Tie states it provides a structural load-rated solution when combined with the Outdoor Accents structural wood screw.
• Can it be used outdoors? Yes. It uses a black Quik Guard coating for exterior use.
• What size is the washer? The washer diameter is about 1-1/2 in. and the hex-head section is about 1 in.
• What types of projects is it commonly used on? Product information points to decks, pergolas, arbors, gazebos, and other outdoor wood structures.