{"product_id":"value-collection-31353-lock-washer-no-12-steel-100-pack","title":"Value Collection 31353 Lock Washer No. 12 Steel 100 Pack","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION 31353 is a No. 12 screw internal tooth lock washer manufactured from Grade 2 steel with a zinc-plated finish. Internal teeth bite into the bearing surface and fastener head as the fastener is tightened, resisting loosening from vibration and torque. The zinc plating provides a baseline layer of corrosion resistance for general-purpose applications. These washers measure 0.022 inches thick with a minimum inside diameter of 0.221 inches and a maximum inside diameter of 0.231 inches. Outside diameter ranges from a minimum of 0.394 inches to a maximum of 0.406 inches. Sold in a pack of 100, this SKU suits high-volume service and maintenance operations.\u003c\/p\u003e\u003cp\u003eInternal tooth lock washers in this size are used across HVAC, electrical, plumbing, and general mechanical assembly wherever a No. 12 screw connection requires added vibration resistance. Common applications include panel assembly, equipment enclosure fastening, motor mount hardware, and electrical box installations. The zinc finish makes these washers suitable for indoor and light-duty outdoor environments where mild corrosion resistance is acceptable.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eInternal tooth design grips both fastener head and mating surface to resist loosening under vibration\u003c\/li\u003e\n\u003cli\u003eGrade 2 steel construction for standard-duty fastening applications\u003c\/li\u003e\n\u003cli\u003eZinc-plated finish for corrosion resistance in general indoor and light outdoor use\u003c\/li\u003e\n\u003cli\u003eSized for No. 12 screws with inside diameter range of 0.221 to 0.231 inches\u003c\/li\u003e\n\u003cli\u003e0.022-inch thickness for consistent, low-profile clamping\u003c\/li\u003e\n\u003cli\u003ePack of 100 supports production, service, and maintenance workflows\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with No. 12 screws in standard fastening applications across HVAC, electrical, and mechanical assembly installations.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation requires no special tools beyond standard hand or power drivers appropriate to the mating fastener. Place the lock washer between the fastener head and the work surface with the teeth facing the fastener head for proper engagement. Power down all electrical equipment and de-energize panels before performing any fastener work on live electrical assemblies. Follow applicable NEC or equipment manufacturer guidelines when using hardware inside electrical enclosures.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\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\u003eThickness\u003c\/strong\u003e: 0.022 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Inside Diameter\u003c\/strong\u003e: 0.221 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Inside Diameter\u003c\/strong\u003e: 0.231 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Outside Diameter\u003c\/strong\u003e: 0.394 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Outside Diameter\u003c\/strong\u003e: 0.406 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 100\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31161801\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 31353\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51692026298674,"sku":"31353","price":17.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0f2f2ef4f1e1e7e98ec52abc09e4369c.jpg?v=1788292152","url":"https:\/\/voomisupply.com\/products\/value-collection-31353-lock-washer-no-12-steel-100-pack","provider":"Voomi Supply","version":"1.0","type":"link"}