Steel Anti-Turn Washers

SPAX   75-Count 1-3/4-in Plastic Beveled Washers

The SPAX 1-3/4 in. dia. Plasti-Grip ci Prong insulation washer is the perfect solution to attach rigid insulation. Patented prongs enable pre-spotting for easy on-the-wall fastening. Appropriate for all substrates including masonry/foundation walls, wood and steel. Recommended for use with SPAX #8 or #10 Dia construction screws. Energy efficient and labor-saving attachment of all types of rigid insulation. Do it Once, Do it Right with SPAX.

Hillman   1/2-in Galvanized/Uncoated Anti-Turn Washer

Hillman 1/2-inch galvanized anti-turn washers are designed to help prevent fasteners from rotating during installation and use. These washers feature extended barbs that grip into softer materials such as wood, plastic, and light metals, creating a secure hold that helps stabilize bolts and screws once tightened. Unlike standard flat washers, anti-turn washers include a specialized design that allows the washer to bite slightly into the material surface. This helps prevent the washer from spinning when tightening or loosening a bolt, improving overall fastener stability and making installation more efficient. These washers are particularly useful in applications involving soft substrates, including wood framing, plastic components, and light metal assemblies. The anti-turn design helps maintain alignment and reduces the risk of loosening caused by vibration or movement. Constructed from durable steel and finished with a mechanical galvanized coating, these washers provide excellent protection against rust and corrosion. The finish conforms to ASTM A153 standards, making them suitable for exterior applications or environments exposed to moisture. Manufactured to meet ASTM A156 fastener specifications, these washers offer dependable quality and performance across construction, structural fastening, woodworking, and equipment assembly projects. Packaged in a convenient C-Pak containing 25 washers, these anti-turn washers are ideal for contractors, builders, maintenance professionals, and DIY homeowners working on projects that require secure, non-rotating fastener support.

Hillman   -Count 3/8-in Galvanized/Uncoated Anti-Turn Washer

Galvanized Anti-Turn Washers have serrations that extend radially inward and/or outward to bite into the bearing surface. This type of washer is effective as a lock washer when used with a soft substrate, such as aluminum or plastic.

Hillman   -Count 5/16-in Galvanized/Uncoated Anti-Turn Washer

Galvanized Anti-Turn Washers have serrations that extend radially inward and/or outward to bite into the bearing surface. This type of washer is effective as a lock washer when used with a soft substrate, such as aluminum or plastic.

Hillman   -Count 1/4-in Galvanized/Uncoated Anti-Turn Washer

Galvanized Anti-Turn Washers have serrations that extend radially inward and/or outward to bite into the bearing surface. This type of washer is effective as a lock washer when used with a soft substrate, such as aluminum or plastic.

Simpson Strong-Tie   Outdoor Accents 8-Count 1.469-in Powder-coated Finishing Washer

The Outdoor Accents hex-head washer from Simpson Strong-Tie provides the decorative appearance of a bolt connection. Its patent-pending design enables a much easier installation time compared to through-bolting. The washer is code-listed (IAPMO). It is designed exclusively to fasten Outdoor Accents post bases, T and L straps and angles.

Hillman   25 Count #10 Zinc-plated Bonded Sealing Washer

Plaster washers are about the size of a quarter and cost pennies. A drywall screw goes through the washer and is driven into the wood lath behind the plaster. The unique design of the plaster washers anchors the plaster firmly against the lath, stopping cracks and sagging.

Simpson Strong-Tie   Outdoor Accents Mission 1.469-in Powder-coated Finishing Washer

The Outdoor Accents decorative hardware product line features connectors and fasteners that bring strength and style to custom outdoor living structures. The Mission Collection adds a hint of southwestern flair. The APDMW decorative washer installs easily with the Outdoor Accents structural wood screw and hex-head washer and can be used in a variety of wood-to-wood connections.

Simpson Strong-Tie   Outdoor Accents Avant 3-in Powder-coated Finishing Washer

The Simpson Strong-Tie Outdoor Accents line of decorative hardware features connectors and fasteners that bring beauty and strength to custom outdoor living structures. The Avant Collection features straight edges and chamfered corners for a clean, timeless design. The APVDW decorative washer installs easily with the Outdoor Accents structural wood screw and hex-head washer and can be used in a variety of wood-to-wood connections.

Hillman   75 Count 1/4-in Polychloroprene Bonded Sealing Washer

Sealing washers are used to prevent leakage, distribute pressure of the bolt or screw and also make a great cushioning agent to help with vibrations.

Hillman   100 Count #10 Neoprene Bonded Sealing Washer

Sealing washers are used to prevent leakage, distribute pressure of the bolt or screw and also make a great cushioning agent to help with vibrations.

Hillman   15-Count #10 Stainless steel Finishing Washer

The finishing washer has an increased bearing surface and the sunken design gives a clean appearance. The washer is designed for use with flat or oval head screws. The call-out size is the inner diameter of the washer.

Hillman   100 Count #8 Polychloroprene Bonded Sealing Washer

Sealing washers are used to prevent leakage, distribute pressure of the bolt or screw and also make a great cushioning agent to help with vibrations.

Hillman   16-Count #8 Stainless steel Finishing Washer

The finishing washer has an increased bearing surface and the sunken design gives a clean appearance. The washer is designed for use with flat or oval head screws. The call-out size is the inner diameter of the washer.

Hillman   12-Count #8 Nickel Finishing Washer

The finishing washer has an increased bearing surface and the sunken design gives a clean appearance. The washer is designed for use with flat or oval head screws. The call-out size is the inner diameter of the washer.

Hillman   10-Count #14 Stainless steel Finishing Washer

The finishing washer has an increased bearing surface and the sunken design gives a clean appearance. The washer is designed for use with flat or oval head screws. The call-out size is the inner diameter of the washer.

Hillman   18-Count #6 Stainless steel Finishing Washer

The finishing washer has an increased bearing surface and the sunken design gives a clean appearance. The washer is designed for use with flat or oval head screws. The call-out size is the inner diameter of the washer.

Hillman   10-Count #10 Nickel Finishing Washer

The finishing washer has an increased bearing surface and the sunken design gives a clean appearance. The washer is designed for use with flat or oval head screws. The call-out size is the inner diameter of the washer.

Hillman   6-Count #8 Brass Finishing Washer

Finish washers provide a greater bearing surface under the fastener. This helps prevent a nut, bolt or screw from pulling through the material. Once common for marine use, brass is now used mostly in decorative applications.