{"product_id":"value-collection-sew7x1800-050bx-m18-lock-washer-21mm-id","title":"Value Collection SEW7X1800-050BX M18 Lock Washer 21mm Id","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION SEW7X1800-050BX is an external tooth lock washer designed for use with M18 fasteners. It is manufactured from Grade 18-8 austenitic stainless steel, Designation A2, and carries an uncoated finish. The washer features an inside diameter of 21mm, an outside diameter of 33mm, and a thickness of 1.4mm. External teeth bite into the mating surface under torque load to resist fastener loosening caused by vibration or thermal cycling. This type of hardware is commonly installed by plumbers, pipefitters, electricians, and mechanical contractors wherever corrosion resistance and secure clamping are required.\u003c\/p\u003e\u003cp\u003eThis lock washer is suited for industrial, commercial, and trade applications where stainless steel hardware is specified for corrosion-prone environments. Typical installations include HVAC equipment connections, plumbing fixture assemblies, electrical panel mounting, and general mechanical assemblies requiring vibration-resistant fastening. The austenitic A2 stainless grade provides good resistance to moisture and mild chemical exposure, making it appropriate for both indoor and outdoor service conditions.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eExternal tooth design grips mating surface to resist fastener rotation and loosening\u003c\/li\u003e\n\u003cli\u003eGrade 18-8 austenitic stainless steel, Designation A2, for corrosion resistance\u003c\/li\u003e\n\u003cli\u003eInside diameter of 21mm, compatible with M18 fasteners\u003c\/li\u003e\n\u003cli\u003eOutside diameter of 33mm with a thickness of 1.4mm\u003c\/li\u003e\n\u003cli\u003eUncoated finish suitable for stainless-appropriate applications\u003c\/li\u003e\n\u003cli\u003eConforms to DIN 6797 and DIN 6798 standards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with M18 screws and bolts. Conforms to DIN 6797 and DIN 6798 specifications for external tooth lock washers.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstall between the fastener head or nut and the mating surface, with the teeth facing the fastener bearing surface. Power down or de-energize any associated equipment before performing fastener work in electrical or HVAC applications. Use appropriate torque tools to achieve proper clamp load without deforming the washer. Consult applicable codes such as the NEC or IPC for fastener and hardware requirements specific to your trade application.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTooth Type\u003c\/strong\u003e: External Tooth\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: 18-8 Austenitic Grade A2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 21mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 33mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 1.4mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: DIN 6797, DIN 6798\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\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: SEW7X1800-050BX\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51720076067122,"sku":"SEW7X1800-050BX","price":1671.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f717f350ce7a09f908e0d153ede9cca6.jpg?v=1788560702","url":"https:\/\/voomisupply.com\/products\/value-collection-sew7x1800-050bx-m18-lock-washer-21mm-id","provider":"Voomi Supply","version":"1.0","type":"link"}