{"product_id":"value-collection-siwis0870usa-100bx-lock-washer-7-8in","title":"Value Collection SIWIS0870USA-100BX Lock Washer 7\/8in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION SIWIS0870USA-100BX is a steel internal tooth lock washer designed for use with 7\/8-inch screws. The washer features a zinc-plated finish over Grade 2 steel construction, providing corrosion resistance in standard indoor and light-duty outdoor fastening applications. With an inside diameter of 0.927 inches and an outside diameter of 1.41 inches, this washer fits standard 7\/8-inch fastener assemblies. The internal tooth design bites into both the fastener bearing surface and the workpiece to resist loosening from vibration. Electricians, HVAC technicians, plumbers, and general mechanical contractors use internal tooth lock washers as part of code-compliant fastener assemblies across a wide range of trade applications.\u003c\/p\u003e\n\u003cp\u003eThis lock washer is suited for residential and light commercial mechanical assemblies where vibration resistance is required. Typical applications include panel mounting, equipment fastening, conduit fittings, and structural connections using 7\/8-inch fasteners. The zinc-plated finish makes it appropriate for dry and mildly humid environments. It is sold individually with a minimum order quantity of 10 pieces, making it practical for both small repairs and bulk restocking.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eInternal tooth design resists fastener loosening under vibration\u003c\/li\u003e\n  \u003cli\u003eGrade 2 steel construction provides reliable mechanical strength\u003c\/li\u003e\n  \u003cli\u003eZinc-plated finish offers corrosion resistance for standard service environments\u003c\/li\u003e\n  \u003cli\u003e0.927-inch inside diameter sized for 7\/8-inch screw applications\u003c\/li\u003e\n  \u003cli\u003e1.41-inch outside diameter distributes clamping load across bearing surface\u003c\/li\u003e\n  \u003cli\u003e0.04-inch thickness fits standard fastener stack heights\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with 7\/8-inch screws and bolts in standard fastener assemblies across mechanical, electrical, and plumbing installations.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInternal tooth lock washers are installed between the fastener head or nut and the workpiece surface. Ensure the tooth side faces the fastener bearing surface to allow proper engagement. Do not reuse lock washers that have been fully compressed, as the teeth lose effectiveness after being flattened. Installation is appropriate for any trade professional working with 7\/8-inch fastener assemblies following applicable mechanical or electrical codes.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTooth Type\u003c\/strong\u003e: Internal Tooth\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Grade 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Zinc-Plated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eScrew Size\u003c\/strong\u003e: 7\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 0.927 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 1.41 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.04 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMilitary Specification\u003c\/strong\u003e: Does Not Meet Military Specifications\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: VALUE COLLECTION\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: SIWIS0870USA-100BX\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51722045522226,"sku":"SIWIS0870USA-100BX","price":1663.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1ecb35b040475138a8788fbc394a0045.jpg?v=1788584645","url":"https:\/\/voomisupply.com\/products\/value-collection-siwis0870usa-100bx-lock-washer-7-8in","provider":"Voomi Supply","version":"1.0","type":"link"}