{"product_id":"14-04-m12","title":"M12 Spring Lock Washers DIN 127B – Rectangular Section, Bright Zinc Plated","description":"\u003cdiv class=\"product-description\"\u003e\n\n  \u003cp\u003eRectangular-section spring lock washers engineered to DIN 127B, providing secure vibration-resistant fastening across metric sizes M12–M22.\u003c\/p\u003e\n\n  \u003ch3\u003eKey Benefits \u0026amp; Features\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eManufactured to DIN 127B specifications for consistent dimensions and performance.\u003c\/li\u003e\n    \u003cli\u003eRectangular-section coil delivers firm locking action to resist loosening under vibration or dynamic loads.\u003c\/li\u003e\n    \u003cli\u003eHigh-grade spring steel hardened to 140 HV offers resilience and long service life.\u003c\/li\u003e\n    \u003cli\u003eBright zinc plated (BZP) for corrosion resistance and a clean, professional finish.\u003c\/li\u003e\n    \u003cli\u003eWide size range from M12 to M22; inner diameters 3.1–18.2 mm with matching outer diameters 6.2–29.4 mm.\u003c\/li\u003e\n    \u003cli\u003eSuitable for automotive, engineering, construction and DIY applications where secure fastening is critical.\u003c\/li\u003e\n    \u003cli\u003eEasy to install; helps prevent leakage, isolates joints and resists pressure dispersion.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eUse Cases\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003ePreventing bolt or nut loosening in machinery, engines and vibrating assemblies\u003c\/li\u003e\n    \u003cli\u003eSecuring structural joints in construction and civil engineering\u003c\/li\u003e\n    \u003cli\u003eAutomotive repairs, especially on components subject to vibration\u003c\/li\u003e\n    \u003cli\u003eEquipment maintenance and general engineering projects\u003c\/li\u003e\n    \u003cli\u003eDIY workshop tasks requiring reliable locking washers\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eVariants (Inner Ø × Outer Ø × Thickness)\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eM12:\u003c\/strong\u003e 3.1 mm × 6.2 mm × 0.8 mm (≈0.12\" × 0.24\" × 0.03\")\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eM4:\u003c\/strong\u003e 4.1 mm × 7.6 mm × 1 mm (≈0.16\" × 0.30\" × 0.04\")\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eM5:\u003c\/strong\u003e 5.3 mm × 7.8 mm × 1.5 mm (≈0.21\" × 0.31\" × 0.06\")\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eM6:\u003c\/strong\u003e 6.1 mm × 11.8 mm × 1.4 mm (≈0.24\" × 0.46\" × 0.06\")\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eM8:\u003c\/strong\u003e 8.1 mm × 14.8 mm × 2 mm (≈0.32\" × 0.58\" × 0.08\")\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eM10:\u003c\/strong\u003e 10.2 mm × 18.1 mm × 2.5 mm (≈0.40\" × 0.71\" × 0.10\")\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eM12:\u003c\/strong\u003e 12.2 mm × 20.1 mm × 3 mm (≈0.48\" × 0.79\" × 0.12\")\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eM14:\u003c\/strong\u003e 14.2 mm × 24.1 mm × 3.2 mm (≈0.56\" × 0.95\" × 0.13\")\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eM16:\u003c\/strong\u003e 16.2 mm × 27.4 mm × 3.5 mm (≈0.64\" × 1.08\" × 0.14\")\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eM18:\u003c\/strong\u003e 18.2 mm × 29.4 mm × 3.5 mm (≈0.72\" × 1.16\" × 0.14\")\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eCompatibility \/ Fittings\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eFits standard metric bolts and screws of the same nominal diameter (M12–M22).\u003c\/li\u003e\n    \u003cli\u003eSuitable for use with nuts and threaded inserts; ensure matching grade and finish for best performance.\u003c\/li\u003e\n    \u003cli\u003eCompatible with flat washers (Form A\/B\/C) when additional load distribution is required.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eInstallation \u0026amp; Tips\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eSelect the washer size that matches the bolt’s nominal diameter (e.g. M8 washer for an M8 bolt).\u003c\/li\u003e\n    \u003cli\u003ePlace the washer between the bolt head or nut and the material to be secured; ensure correct orientation for rectangular-section coils.\u003c\/li\u003e\n    \u003cli\u003eFor high-vibration applications, combine with appropriate thread-locking nuts or adhesives.\u003c\/li\u003e\n    \u003cli\u003eDo not exceed recommended torque values for the bolt to avoid damaging the washer.\u003c\/li\u003e\n    \u003cli\u003eUse with matching bright zinc plated bolts and nuts to maintain corrosion resistance.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n\u003c\/div\u003e","brand":"Zarvio","offers":[{"title":"1","offer_id":57182160945497,"sku":"AD-2\/11","price":0.43,"currency_code":"GBP","in_stock":true},{"title":"3","offer_id":57182160978265,"sku":"AD-2\/11 x3","price":0.48,"currency_code":"GBP","in_stock":true},{"title":"5","offer_id":57182161011033,"sku":"AD-2\/11 x5","price":0.54,"currency_code":"GBP","in_stock":true},{"title":"10","offer_id":57182161043801,"sku":"AD-2\/11 x10","price":0.67,"currency_code":"GBP","in_stock":true},{"title":"20","offer_id":57182161076569,"sku":"AD-2\/11 x20","price":1.02,"currency_code":"GBP","in_stock":true},{"title":"25","offer_id":57182161109337,"sku":"AD-2\/11 x25","price":1.19,"currency_code":"GBP","in_stock":true},{"title":"30","offer_id":57182161142105,"sku":"AD-2\/11 x30","price":1.32,"currency_code":"GBP","in_stock":true},{"title":"50","offer_id":57182161174873,"sku":"AD-2\/11 x50","price":1.85,"currency_code":"GBP","in_stock":true},{"title":"100","offer_id":57182161207641,"sku":"AD-2\/11 x100","price":3.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0981\/1440\/4697\/files\/din127b_spring_washers_category_2000_41842a00-968a-45ba-a7f9-8c3b6e8c6f80.png?v=1770039988","url":"https:\/\/zarvio.co.uk\/products\/14-04-m12","provider":"Zarvio","version":"1.0","type":"link"}