{"product_id":"220pc-assorted-box-of-copper-sealing-washers-bsp-imperial-12-sizes","title":"220pc Assorted Copper Sealing Washers Box - 12 Sizes, BSP \u0026 Imperial","description":"\u003cp\u003e\u003cstrong\u003e220pc Assorted Box of Copper Sealing Washers\u003c\/strong\u003e - 220 copper sealing washers in twelve sizes, with bores from 0.265\" up to 0.91\" and thicknesses of 16, 18 and 20 gauge.\u003c\/p\u003e\n\u003cp\u003eCopper is soft enough to crush into the sealing face as the fitting is pulled up, taking up the imperfections in both faces and giving a metal to metal seal with no jointing compound. Unlike a fibre washer it does not mind heat or pressure, which is why copper is what goes on brake unions, banjo bolts and injector lines rather than on a low pressure oil union.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSizes included (twelve sizes, 220 pieces total)\u003c\/strong\u003e\u003cbr\u003e0.265\" x 0.375\" x 20g (quoted as 1\/4\")\u003cbr\u003e0.265\" x 0.437\" x 20g (quoted as 1\/4\")\u003cbr\u003e0.265\" x 0.500\" x 20g (quoted as 1\/4\")\u003cbr\u003e0.323\" x 0.437\" x 20g (quoted as 5\/16\")\u003cbr\u003e0.323\" x 0.500\" x 20g (quoted as 5\/16\")\u003cbr\u003e0.390\" x 0.590\" x 20g (1\/8\" BSP)\u003cbr\u003e0.530\" x 0.720\" x 20g (1\/4\" BSP)\u003cbr\u003e0.530\" x 0.750\" x 18g (1\/4\" BSP)\u003cbr\u003e0.665\" x 0.875\" x 18g (3\/8\" BSP)\u003cbr\u003e0.830\" x 1.000\" x 18g (1\/2\" BSP)\u003cbr\u003e0.830\" x 1.040\" x 18g (1\/2\" BSP)\u003cbr\u003e0.910\" x 1.130\" x 16g (5\/8\" BSP)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note\u003c\/strong\u003e\u003cbr\u003eCopper washers seal best fitted new. One that has been crushed before will not seal as reliably again unless it is annealed first.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSuitable for\u003c\/strong\u003e\u003cbr\u003eBanjo bolts and brake unions, fuel and injector lines, hydraulic fittings, sump and drain plugs, carburettors and fuel pumps, classic vehicles, tractors and machinery\u003c\/p\u003e\n\u003cp\u003eAlso known as copper crush washers, copper sealing rings, banjo washers, brake washers, or a copper washer assortment box.\u003c\/p\u003e","brand":"DH \u0026 JS Trading Ltd","offers":[{"title":"Default Title","offer_id":56776360722810,"sku":"AT66","price":29.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/2239\/6850\/files\/at66.png?v=1775624414","url":"https:\/\/www.dhjstrading.com\/products\/220pc-assorted-box-of-copper-sealing-washers-bsp-imperial-12-sizes","provider":"DH \u0026 JS Trading Ltd","version":"1.0","type":"link"}