{"product_id":"copper-washer-gasket-set-flat-ring-seal-assortment-kit","title":"Copper Washer Gasket Set 50\/100\/120 Pcs Flat Ring Seal Kit","description":"\u003ch2\u003eCopper Flat Washer Gasket Assortment Kit — 50, 100, or 120 Pieces\u003c\/h2\u003e\n\u003cp\u003eKeep your projects sealed tight with this versatile copper flat washer assortment kit. Whether you're a seasoned mechanic, a DIY enthusiast, or a professional tradesperson, this multi-size set gives you the right washer for virtually any job — right when you need it. Available in three convenient quantities: 50, 100, or 120 pieces, all neatly organized in a sturdy storage box.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Choose Copper Washers?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSuperior Sealing:\u003c\/strong\u003e Red copper construction delivers excellent sealing performance for oil, fuel, and hydraulic connections.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Heat Resistance:\u003c\/strong\u003e Withstands demanding temperature environments found in engines, industrial machinery, and appliances.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExcellent Conductivity:\u003c\/strong\u003e Outstanding electrical and thermal conductivity make these washers ideal for electrical and mechanical applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWear \u0026amp; Corrosion Resistant:\u003c\/strong\u003e High hardness and natural copper durability ensure long-lasting performance under repeated use.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePressure Distribution:\u003c\/strong\u003e Provides a larger bearing surface against screws, nuts, and bolts to reduce friction and evenly distribute load — helping prevent loosening over time.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Compatibility:\u003c\/strong\u003e Fits M4, M5, M6, M8, M10, M12, and M14 fasteners across automotive, household, marine, hydraulic, and electrical applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSize Breakdown by Kit\u003c\/h3\u003e\n\u003ch4\u003e50-Piece Kit\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eM4 × 8 × 1 mm — 10 pcs\u003c\/li\u003e\n  \u003cli\u003eM5 × 9 × 1 mm — 10 pcs\u003c\/li\u003e\n  \u003cli\u003eM6 × 10 × 1 mm — 10 pcs\u003c\/li\u003e\n  \u003cli\u003eM8 × 12 × 1 mm — 5 pcs\u003c\/li\u003e\n  \u003cli\u003eM10 × 14 × 1 mm — 5 pcs\u003c\/li\u003e\n  \u003cli\u003eM12 × 16 × 1 mm — 5 pcs\u003c\/li\u003e\n  \u003cli\u003eM14 × 18 × 1 mm — 5 pcs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e100-Piece Kit\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eM4 × 8 × 1 mm — 20 pcs\u003c\/li\u003e\n  \u003cli\u003eM5 × 9 × 1 mm — 20 pcs\u003c\/li\u003e\n  \u003cli\u003eM6 × 10 × 1 mm — 20 pcs\u003c\/li\u003e\n  \u003cli\u003eM8 × 12 × 1 mm — 10 pcs\u003c\/li\u003e\n  \u003cli\u003eM10 × 14 × 1 mm — 10 pcs\u003c\/li\u003e\n  \u003cli\u003eM12 × 16 × 1 mm — 10 pcs\u003c\/li\u003e\n  \u003cli\u003eM14 × 18 × 1 mm — 10 pcs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e120-Piece Kit\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eM4 × 8 × 1 mm — 30 pcs\u003c\/li\u003e\n  \u003cli\u003eM5 × 9 × 1 mm — 30 pcs\u003c\/li\u003e\n  \u003cli\u003eM6 × 10 × 1 mm — 20 pcs\u003c\/li\u003e\n  \u003cli\u003eM8 × 12 × 1 mm — 10 pcs\u003c\/li\u003e\n  \u003cli\u003eM10 × 14 × 1 mm — 10 pcs\u003c\/li\u003e\n  \u003cli\u003eM12 × 16 × 1 mm — 10 pcs\u003c\/li\u003e\n  \u003cli\u003eM14 × 18 × 1 mm — 10 pcs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Red Copper\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity Options:\u003c\/strong\u003e 50 \/ 100 \/ 120 pcs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackaging Size:\u003c\/strong\u003e 13 × 7 × 2 cm (organized storage box included)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Copper (as shown)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Made in China\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003cp\u003eThese copper flat washers are widely used in automotive sump plugs and oil drain seals, household and commercial appliances, hydraulic fittings, fuel systems, marine hardware, and various electrical and industrial assemblies.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eActual color may vary slightly from on-screen images due to monitor brightness and lighting conditions.\u003c\/li\u003e\n  \u003cli\u003ePlease allow for minor measurement tolerances in the stated dimensions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-precision-japanese-double-edged-hand-saw-sk5-steel-fine-toothed-for-carpentry-and-gardening-6-inch-blade-portable-mini-1\"\u003e1pc Precision Japanese Double-Edged Hand Saw – SK5 Steel, Fine-Toothed for Carpentry and Gardening\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10pcs-wooden-handle-nylon-bristle-paint-brush-for-oil-painting-dusting-and-cleaning-unrechargeable-hand-tool-set-without-batt-2\"\u003e10Pcs Wooden Handle Nylon Bristle Paint Brush Set – Hand Tool for Oil Painting, Dusting \u0026amp; Cleaning\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-professional-heavy-duty-pruning-shears-with-anti-slip-handle-design-suitable-for-trimming-thick-and-sturdy-branches\"\u003e1pc Professional Heavy-Duty Pruning Shears with Anti-Slip Handle Design\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/eye-face-protection\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on eye and face protection\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What sizes of copper washers are included in this assortment kit?\u003c\/h4\u003e\n\u003cp\u003eA: The kit includes seven metric sizes: M4, M5, M6, M8, M10, M12, and M14 copper flat washers, all with a 1 mm thickness. Each size is available in varying quantities depending on whether you choose the 50, 100, or 120-piece kit.\u003c\/p\u003e\n\u003ch4\u003eQ: What are copper flat washers used for?\u003c\/h4\u003e\n\u003cp\u003eA: Copper flat washers are commonly used as sealing gaskets in oil drain plugs, fuel fittings, hydraulic connections, and various automotive and industrial assemblies. Their natural heat resistance and sealing properties make them a go-to choice for plumbing, marine, and mechanical applications.\u003c\/p\u003e\n\u003ch4\u003eQ: How does copper compare to standard steel washers for sealing purposes?\u003c\/h4\u003e\n\u003cp\u003eA: Copper is a softer, more malleable metal than steel, which allows it to compress slightly and form a tighter seal around fittings. This makes copper flat washers especially effective at preventing leaks in oil, fuel, and hydraulic systems where a reliable, leak-proof connection is essential.\u003c\/p\u003e\n\u003ch4\u003eQ: Does the kit come with an organized storage case?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! All washers come neatly organized in a compact storage box measuring 13 × 7 × 2 cm, making it easy to sort, store, and find the right size quickly.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What sizes of copper washers are included in this assortment kit?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The kit includes seven metric sizes: M4, M5, M6, M8, M10, M12, and M14 copper flat washers, all with a 1 mm thickness. Each size is available in varying quantities depending on whether you choose the 50, 100, or 120-piece kit.\"}}, {\"@type\": \"Question\", \"name\": \"What are copper flat washers used for?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Copper flat washers are commonly used as sealing gaskets in oil drain plugs, fuel fittings, hydraulic connections, and various automotive and industrial assemblies. Their natural heat resistance and sealing properties make them a go-to choice for plumbing, marine, and mechanical applications.\"}}, {\"@type\": \"Question\", \"name\": \"How does copper compare to standard steel washers for sealing purposes?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Copper is a softer, more malleable metal than steel, which allows it to compress slightly and form a tighter seal around fittings. This makes copper flat washers especially effective at preventing leaks in oil, fuel, and hydraulic systems where a reliable, leak-proof connection is essential.\"}}, {\"@type\": \"Question\", \"name\": \"Does the kit come with an organized storage case?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! All washers come neatly organized in a compact storage box measuring 13 × 7 × 2 cm, making it easy to sort, store, and find the right size quickly.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/pg0se5-51.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/pg0se5-51.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Copper Washer Gasket Set 50\/100\/120 Pcs Flat Ring Seal Kit\", \"item\": \"https:\/\/pg0se5-51.myshopify.com\/products\/copper-washer-gasket-set-flat-ring-seal-assortment-kit\"}]}\u003c\/script\u003e","brand":"Babs","offers":[{"title":"150pcs sheet","offer_id":52550626574476,"sku":"14:4355105#150pcs sheet","price":22.53,"currency_code":"USD","in_stock":true},{"title":"50pcs","offer_id":52550626607244,"sku":"14:193#50pcs","price":16.23,"currency_code":"USD","in_stock":true},{"title":"100pcs","offer_id":52550626640012,"sku":"14:29#100pcs","price":21.51,"currency_code":"USD","in_stock":true},{"title":"120pcs","offer_id":52550626672780,"sku":"14:365462#120pcs","price":24.22,"currency_code":"USD","in_stock":true},{"title":"280pcs","offer_id":52550626705548,"sku":"14:366#280pcs","price":100.99,"currency_code":"USD","in_stock":true},{"title":"Copper 400pcs","offer_id":52550626738316,"sku":"14:203486355#Copper 400pcs","price":112.92,"currency_code":"USD","in_stock":true},{"title":"50pcs sheet","offer_id":52550626771084,"sku":"14:201447303#50pcs sheet","price":12.04,"currency_code":"USD","in_stock":true},{"title":"100pcs sheet","offer_id":52550626803852,"sku":"14:94#100pcs sheet","price":14.75,"currency_code":"USD","in_stock":true},{"title":"120pcs sheet","offer_id":52550626836620,"sku":"14:1254#120pcs sheet","price":14.96,"currency_code":"USD","in_stock":true},{"title":"150pcs","offer_id":52550626869388,"sku":"14:200025551#150pcs","price":81.49,"currency_code":"USD","in_stock":true},{"title":"aluminum 100pcs","offer_id":52550626902156,"sku":"14:175#aluminum 100pcs","price":14.92,"currency_code":"USD","in_stock":true},{"title":"Copper 200pcs","offer_id":52550626934924,"sku":"14:100010417#Copper 200pcs","price":100.32,"currency_code":"USD","in_stock":true},{"title":"Copper 300pcs","offer_id":52550626967692,"sku":"14:496#Copper 300pcs","price":101.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/2862\/6316\/files\/S68a487ea0c5d4e8e89869fa55b9550b0S.webp?v=1786830667","url":"https:\/\/babcustomersupport.com\/products\/copper-washer-gasket-set-flat-ring-seal-assortment-kit","provider":"Babs","version":"1.0","type":"link"}