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.

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.

• 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.