{"product_id":"rivetking-sbup-5-p500-blind-rivet-backup-washer-500-pack","title":"Rivetking SBUP-5\/P500 Blind Rivet Backup Washer 500 Pack","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe RIVETKING SBUP-5\/P500 is a round blind rivet backup washer designed to distribute clamping load and protect the base material surface during blind rivet installation. Built from steel with a zinc-plated finish for corrosion resistance, this Size 5 washer is sized for 5\/32-inch rivet diameter applications. It measures 7\/16 inches in outside diameter, 5\/32 inches in inside diameter, and 1\/16 inch thick. Packaged in a quantity of 500, this part is well suited for contractors, maintenance crews, and fabricators who install blind rivets in volume on metal assemblies, enclosures, ductwork, and structural components.\u003c\/p\u003e\n\u003cp\u003eThese backup washers are used wherever a standard rivet flange alone may pull through or damage a soft, thin, or oversized hole in the substrate material. Common applications include sheet metal work, HVAC panel assembly, electrical enclosure fabrication, and general mechanical assembly. The zinc-plated steel construction makes them appropriate for light indoor and protected outdoor environments where moderate corrosion resistance is needed. The 500-count package supports production-level or multi-job use without frequent reordering.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSize 5 designation fits 5\/32-inch diameter blind rivets\u003c\/li\u003e\n  \u003cli\u003eOutside diameter of 0.437 inches spreads clamping load across a wider surface area\u003c\/li\u003e\n  \u003cli\u003eInside diameter of 0.156 inches for consistent rivet mandrel clearance\u003c\/li\u003e\n  \u003cli\u003eThickness of 0.0625 inches (1\/16 inch) keeps stack-up minimal\u003c\/li\u003e\n  \u003cli\u003eZinc-plated steel construction provides moderate corrosion resistance\u003c\/li\u003e\n  \u003cli\u003e500-piece pack quantity supports high-volume or multi-job use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement and standard accessory backup washer for use with Size 5 blind rivets measuring 5\/32 inch in diameter across general fabrication, HVAC, and sheet metal assembly applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eBackup washers are installed by placing the washer over the rivet mandrel on the blind side or the setting side of the joint before driving the rivet. No special tools beyond a standard rivet gun are required. Ensure the base material hole diameter is not significantly oversized before relying on a backup washer alone to restore pull-through resistance. Installers should follow applicable structural or manufacturer guidelines when backup washers are used in load-bearing connections.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSize Code\u003c\/strong\u003e: 5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRivet Diameter\u003c\/strong\u003e: 5\/32 inches (0.156 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 0.156 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 0.437 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.0625 inches (1\/16 inch)\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\u003ePackage Quantity\u003c\/strong\u003e: 500\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 6.38 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: RIVETKING\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: SBUP-5\/P500\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RIVETKING","offers":[{"title":"Default Title","offer_id":52120927633714,"sku":"SBUP-5\/P500","price":45.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/8e575bbd6a2572149a226cbb5234155e.jpg?v=1790084133","url":"https:\/\/voomisupply.com\/products\/rivetking-sbup-5-p500-blind-rivet-backup-washer-500-pack","provider":"Voomi Supply","version":"1.0","type":"link"}