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.
ANTI-TURN WASHERS FOR SECURE FASTENING: These 1/2" anti-turn washers are designed to prevent unwanted fastener movement by gripping into the surrounding material
IDEAL FOR SOFT MATERIAL APPLICATIONS: These washers are best suited for fastening into soft woods, plastics, and softer metals, where the barbed design can embed slightly into the surface to create a more secure hold and reduce movement over time
BARBED DESIGN PREVENTS ROTATION: Each washer features extended anti-turn barbs that bite into softer materials when tightened
MECHANICAL GALVANIZED FINISH FOR CORROSION PROTECTION: The washers feature a mechanical galvanized coating that provides strong protection against rust and corrosion
TRUSTED HILLMAN FASTENING SOLUTIONS: Hillman hardware products are engineered for consistent quality, dependable performance, and reliable fastening across construction, repair, and home improvement applications
