{"product_id":"m3-5-x-11-x-0-90mm-form-g-flat-construction-washer-metric-hv140-mild-steel-bzp-bs-4320","title":"M3.5 x 11 x 0.9mm Form G Flat Construction Washer, Metric, HV140 Mild Steel, BZP, BS 4320","description":"\u003ch2\u003e\n\u003cstrong\u003eM3.5 Form G Flat Washer\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003eForm G flat washer designed for secure, reliable fastening in a wide range of applications. Designed with a 3.88mm internal diameter to fit M3.5 threaded fasteners.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eA large heavy-duty washer with an outer diameter that’s up to 3 times the internal diameter which sees them used across many applications. The large external diameter ensures optimal load distribution, enhances joint performance, and protects surfaces from damage. \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eA versatile washer used by professionals and DIY enthusiast for numerous applications. These include construction, building projects, engineering assemblies, automotive, DIY and home improvement.\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003e\n\u003cstrong\u003eM3.5 Form G Flat Washer Specifications\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSize \u003cstrong\u003e(TD): \u003c\/strong\u003eto fit M3.5 - 3.5mm\u003c\/li\u003e\n\u003cli\u003eDiameter \u003cstrong\u003e(D):\u003c\/strong\u003e 11mm max\u003c\/li\u003e\n\u003cli\u003eInner diameter\u003cstrong\u003e (ID):\u003c\/strong\u003e 3.88mm max\u003c\/li\u003e\n\u003cli\u003eThickness\u003cstrong\u003e (T):\u003c\/strong\u003e 0.90mm max\u003c\/li\u003e\n\u003cli\u003eMaterial: HV140 Mild Steel\u003c\/li\u003e\n\u003cli\u003eFinish: Bright Zinc Plated\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePart of a larger range of \u003ca href=\"https:\/\/www.fusionfixings.co.uk\/collections\/washers\" rel=\"noopener\" target=\"_blank\"\u003ewashers \u003c\/a\u003eavailable from Fusion Fixings.\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eFAQs for Form G Flat Washers\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat do washers actually do?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWashers are used to spread the load of a bolt or screw, preventing damage to the surface and helping keep the fixing secure. They also reduce loosening and can act as a protective buffer between materials.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I really need a washer, or can I skip it?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt depends on the application. In many cases (especially timber, soft materials, or oversized holes), a washer is essential to prevent pull-through and distribute load. In light-duty metal-to-metal fixings, they may sometimes be optional—but still recommended for long-term performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy are some washers so big (like Form G)?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eForm G washers have a much larger outer diameter (typically 3× the hole size). This makes them ideal for numerous applications including timber-to-timber fixings, soft materials like plastic and oversized or worn holes.\u003c\/p\u003e\n\u003cp\u003eThey spread load over a wider area and prevent fixings from sinking into the material.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat size washer should I use with my bolt?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou should match the internal diameter (ID) of the washer to the bolt size (e.g. M10 bolt = M10 washer). With Form G washers, the outer diameter is much larger than standard, but the hole size still corresponds to the bolt size.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat’s the difference between standard washers and Form G washers?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe key differences are Form G washers are larger and thicker and designed for heavy-duty or load-spreading applications, making them better for timber, construction, and repair work. Standard washers are smaller and used for general-purpose fastening. \u003cbr\u003e\u003c\/p\u003e","brand":"Fusion Fixings","offers":[{"title":"Qty Price Break - 1","offer_id":56871166312831,"sku":"FGFW-MBZP-035","price":0.14,"currency_code":"GBP","in_stock":true},{"title":"Qty Price Break - 10","offer_id":56871166411135,"sku":"FGFW-MBZP-035","price":0.1,"currency_code":"GBP","in_stock":true},{"title":"Qty Price Break - 25","offer_id":56871166542207,"sku":"FGFW-MBZP-035","price":0.07,"currency_code":"GBP","in_stock":true},{"title":"Qty Price Break - 50","offer_id":56871166771583,"sku":"FGFW-MBZP-035","price":0.05,"currency_code":"GBP","in_stock":true},{"title":"Qty Price Break - 100","offer_id":56871167099263,"sku":"FGFW-MBZP-035","price":0.04,"currency_code":"GBP","in_stock":true},{"title":"Qty Price Break - 200","offer_id":56871167361407,"sku":"FGFW-MBZP-035","price":0.03,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0581\/6090\/6293\/files\/Form_20G_20Washer_20A2_ea07d466-17e6-4efa-bb80-d387a100d66e.png?v=1697881263","url":"https:\/\/www.fusionfixings.co.uk\/products\/m3-5-x-11-x-0-90mm-form-g-flat-construction-washer-metric-hv140-mild-steel-bzp-bs-4320","provider":"Fusion Fixings","version":"1.0","type":"link"}