{"product_id":"m4-external-serrated-star-washer-ss304-id-4mm-od-7-6","title":"M4 External Serrated Star Washer SS304 (ID: 4.1mm OD:7.6)","description":"\u003cp\u003e\u003cspan\u003eInner diameter: \u003c\/span\u003e\u003cstrong\u003e4.1mm\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eOuter diameter: \u003c\/span\u003e\u003cstrong\u003e7.6mm\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eThickness: \u003c\/span\u003e\u003cstrong\u003e1.1mm\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eMaterial: \u003c\/span\u003e\u003cstrong\u003eSS304\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExternal Serrated Star Washer \u003c\/strong\u003eis a locking washer designed to prevent loosening of fasteners under vibration and dynamic loads. Made from \u003cstrong\u003eSS304 stainless steel\u003c\/strong\u003e, it offers excellent corrosion resistance, durability, and long service life in indoor, outdoor, and humid environments.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eexternal serrations (teeth)\u003c\/strong\u003e grip into the surface and the fastener head, creating increased friction and a secure hold. This makes it more effective than plain washers in resisting loosening.\u003c\/p\u003e\n\u003ch3\u003eWhat Makes It Different\u003c\/h3\u003e\n\u003cp\u003eUnlike flat washers, \u003cstrong\u003eexternal serrated washers provide a locking action\u003c\/strong\u003e, ensuring the nut or bolt stays tight even under vibration. The outer teeth also offer a \u003cstrong\u003elarger contact area\u003c\/strong\u003e, improving grip and stability.\u003c\/p\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cp\u003eCommonly used in \u003cstrong\u003eelectrical connections, panels, automotive assemblies, machinery, appliances, and sheet metal fastening\u003c\/strong\u003e, especially where vibration resistance and reliable grounding contact are important.\u003c\/p\u003e","brand":"OnlyScrews","offers":[{"title":"Default Title","offer_id":52037393285433,"sku":"ESWM4SS","price":1.2,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0871\/5295\/1609\/files\/External_Serrated_Star_Washer_SS304.png?v=1774030005","url":"https:\/\/onlyscrews.in\/products\/m4-external-serrated-star-washer-ss304-id-4mm-od-7-6","provider":"OnlyScrews","version":"1.0","type":"link"}