{"product_id":"250pc-assorted-box-of-metric-copper-sealing-washers-m5-to-m17","title":"250pc Assorted Metric Copper Sealing Washers Box - M5 to M17","description":"\u003cp\u003e\u003cstrong\u003e250pc Assorted Box of Metric Copper Sealing Washers\u003c\/strong\u003e - 250 copper sealing washers to DIN 7603 Form A in fourteen sizes, with bores from 5mm to 17mm and outside diameters from 9mm to 23mm.\u003c\/p\u003e\n\n\u003cp\u003eCopper crushes into the sealing face as the fitting is pulled up, giving a metal to metal joint that needs no compound or tape and takes no notice of how hot or how highly pressurised the line is. That is why copper rather than fibre goes on brake unions, diesel injector pipes and hydraulic fittings. Three figures decide whether one fits - the bore, the outside diameter and the thickness - and all three are listed against every size.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBox contents (250 pieces total, fourteen sizes)\u003c\/strong\u003e\u003cbr\u003e25 x 5mm bore x 9mm x 1.0mm\u003cbr\u003e25 x 6mm bore x 10mm x 1.0mm\u003cbr\u003e25 x 6.5mm bore x 9.5mm x 1.0mm\u003cbr\u003e20 x 8mm bore x 12mm x 1.0mm\u003cbr\u003e20 x 9mm bore x 14mm x 1.0mm\u003cbr\u003e20 x 10mm bore x 14mm x 1.0mm\u003cbr\u003e20 x 10mm bore x 16mm x 1.5mm\u003cbr\u003e20 x 12mm bore x 16mm x 1.5mm\u003cbr\u003e20 x 13mm bore x 18mm x 1.5mm\u003cbr\u003e20 x 14mm bore x 18mm x 1.0mm\u003cbr\u003e15 x 14mm bore x 20mm x 1.5mm\u003cbr\u003e10 x 15mm bore x 20mm x 2.0mm\u003cbr\u003e5 x 16mm bore x 22mm x 1.5mm\u003cbr\u003e5 x 17mm bore x 23mm x 1.5mm\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003cbr\u003eCopper sealing washer to DIN 7603 Form A. Sizes quoted as bore x outside diameter x thickness.\u003c\/p\u003e\n\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\n\u003cp\u003e\u003cstrong\u003eSuitable for\u003c\/strong\u003e\u003cbr\u003eBanjo bolts and brake unions, diesel injector and fuel lines, hydraulic fittings, sump and gearbox drain plugs, carburettors and fuel pumps, cars, vans, tractors and machinery\u003c\/p\u003e\n\n\u003cp\u003eAlso known as copper crush washers, copper sealing rings, banjo washers, brake washers, injector washers, or a copper washer assortment box.\u003c\/p\u003e","brand":"DH \u0026 JS Trading Ltd","offers":[{"title":"Default Title","offer_id":56776361869690,"sku":"AT75","price":24.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/2239\/6850\/files\/AT75.png?v=1775624677","url":"https:\/\/www.dhjstrading.com\/products\/250pc-assorted-box-of-metric-copper-sealing-washers-m5-to-m17","provider":"DH \u0026 JS Trading Ltd","version":"1.0","type":"link"}