{"product_id":"hillman-290027-fender-washer-5-16-in-zinc-steel-100-ct","title":"Hillman 290027 Fender Washer 5\/16 in Zinc Steel 100 Ct","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HILLMAN 290027 is a zinc-plated steel fender washer designed for applications that demand a larger bearing surface than a standard flat washer provides. The oversized outer diameter distributes load more effectively across soft or thin materials, reducing pull-through and surface damage. The zinc plating adds corrosion resistance for use in moderately exposed environments. This box contains 100 washers sized for a 5\/16-inch fastener. Trade professionals in sheet metal work, plumbing, and electrical installation keep these on hand for high-volume jobs where consistent fastener performance matters.\u003c\/p\u003e\u003cp\u003eFender washers in this size range are widely used in light commercial and residential construction and repair. Typical applications include securing sheet metal panels, anchoring electrical boxes and conduit straps, fastening plumbing straps and brackets, and any situation where a standard washer would not provide adequate surface coverage. The 5\/16-inch hole size pairs with 5\/16-inch bolts, screws, and threaded rod commonly found across these trades.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eOversized outer diameter distributes clamping load over a larger surface area than standard flat washers\u003c\/li\u003e\n\u003cli\u003eZinc plating provides corrosion resistance for interior and moderate-exposure applications\u003c\/li\u003e\n\u003cli\u003eSteel construction delivers reliable tensile and shear strength for fastener assemblies\u003c\/li\u003e\n\u003cli\u003e5\/16-inch inner diameter fits standard 5\/16-inch fasteners used across HVAC, plumbing, and electrical work\u003c\/li\u003e\n\u003cli\u003e100-count box supports high-volume installations and reduces per-unit cost on larger jobs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with 5\/16-inch bolts, screws, and threaded rod in sheet metal, plumbing, and electrical fastening applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eFender washers are installed by general contractors, electricians, plumbers, and HVAC technicians as part of standard fastener assemblies. Place the washer over the fastener shank before driving into the mating surface to ensure full contact between the washer face and the work material. Avoid over-torquing fasteners, which can deform the washer and reduce load distribution effectiveness. Zinc-plated hardware is not recommended for direct outdoor or high-moisture exposure where hot-dip galvanized or stainless hardware is more appropriate.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner Diameter\u003c\/strong\u003e: 5\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 1.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Zinc Plated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity\u003c\/strong\u003e: 100 per box\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 2.81 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 00008236090345\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: HILLMAN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 290027\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HILLMAN","offers":[{"title":"Default Title","offer_id":51343472263474,"sku":"290027","price":31.61,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310549130.jpg?v=1782021808","url":"https:\/\/voomisupply.com\/products\/hillman-290027-fender-washer-5-16-in-zinc-steel-100-ct","provider":"Voomi Supply","version":"1.0","type":"link"}