{"title":"Washers","description":"\u003cp\u003eStainless steel washers in A2 (304) and A4 (316), from M1.6 to M64, plus imperial BA and No. gauge sizes. A few flat washers also come in duplex (1.4462) stainless.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlat washers\u003c\/strong\u003e: Form A (DIN 125-A and ISO 7089), Forms B, C and D (BS 4320), large diameter washers to DIN 9021 and ISO 7093, small washers to DIN 433, and imperial washers to BS 3410.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePenny washers\u003c\/strong\u003e with a wide outside diameter to spread load into timber and soft materials.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring and lock washers\u003c\/strong\u003e: rectangular and square section spring washers (DIN 127-B and DIN 7980), curved (DIN 128-A) and conical (DIN 6796) spring washers, internal and external \u003ca href=\"\/collections\/tooth-washers\"\u003etooth washers\u003c\/a\u003e, \u003ca href=\"\/collections\/crinkle-wavy-washers\"\u003ecrinkle and wavy washers\u003c\/a\u003e, and tab washers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecialist washers\u003c\/strong\u003e: bonded sealing washers, square plate washers, taper washers, cup washers, and conical seat and spherical washers.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003ch3\u003eWhat types of stainless steel washer does Simfix stock?\u003c\/h3\u003e\u003cp\u003eFlat washers in Forms A, B, C and D, large and small diameter washers, penny washers, spring washers in rectangular, square, curved and conical forms, tooth, crinkle, wavy and tab lock washers, and specialist washers including bonded sealing, square plate, taper and cup washers. Most come in both A2 (304) and A4 (316).\u003c\/p\u003e\u003ch3\u003eWhat is a Form C washer used for?\u003c\/h3\u003e\u003cp\u003eA Form C washer (BS 4320) has a larger outside diameter than a standard Form A washer, which spreads the clamping load over a wider area. Use it where the material under the bolt head is soft, thin, or has an oversized clearance hole, such as softwood decking or thin sheet. Simfix stocks Form C washers in A2 from M4 to M30, and in A4 in M4, M5, M6, M8, M12, M14, M16, M20, M24, M27, M30, M33 and M36.\u003c\/p\u003e\u003ch3\u003eDoes a spring washer stop a bolt coming loose?\u003c\/h3\u003e\u003cp\u003eA rectangular section spring washer (DIN 127-B) gives some resistance to loosening under light vibration, by staying under compression as the bolt settles. For joints exposed to significant vibration, such as trailers or machinery, a nyloc (nylon insert) nut gives more reliable resistance than a spring washer alone. Simfix stocks both.\u003c\/p\u003e\u003ch3\u003eWhat sizes of stainless steel washer does Simfix stock?\u003c\/h3\u003e\u003cp\u003eForm A flat washers run from M1.6 to M64 in both A2 (304) and A4 (316). Form B goes up to M39, Form C up to M36, rectangular section spring washers up to M42, and penny washers from M3 to M12. Not every size is held in both grades, and each product listing is a single size.\u003c\/p\u003e\u003cp\u003eSizes, grades and pack quantities vary by product type. Check the individual product listing for the exact specification and current availability.\u003c\/p\u003e","products":[{"product_id":"simfix-flat-washer-form-a-din-125-a-a2-stainless-steel-m3","title":"M3 Flat Washer, Form A DIN 125-A A2 Stainless Steel","description":"\u003cp\u003eM3 flat washer in A2 stainless steel to DIN 125-A. Spreads clamping load under bolt heads and nuts, protecting timber, aluminium, and plastic substrates from damage. 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Free next-day UK delivery on orders over £50.\u003c\/p\u003e","brand":"Simfix","offers":[{"title":"Pack of 25","offer_id":57124257137015,"sku":"125CA2064-D","price":2.73,"currency_code":"GBP","in_stock":true},{"title":"Pack of 200","offer_id":57124257169783,"sku":"125CA2064-T","price":4.48,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0991\/4728\/4855\/files\/SIM125CA2064_20OD_20_282FC06_29.jpg?v=1779795020"},{"product_id":"simfix-flat-washer-form-c-bs4320-c-a2-stainless-steel-m8","title":"M8 Flat Washer, Form C BS4320-C A2 Stainless Steel","description":"\u003cp\u003eM8 flat washer (Form C, large OD) in A2 stainless steel to BS4320-C. The large outer diameter covers oversized holes and spreads clamping load over a wider bearing area than a standard Form A washer of the same nominal size. 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ANSI\/ASME B18.21.1 specifies the imperial series of helical spring lock washers, for maintaining tension under vibration. The split ring compresses flat as the joint is tightened and pushes back against the nut face, maintaining tension and helping the fastener resist vibration.\u003c\/p\u003e\u003ch3\u003eTypical applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eImperial threaded joints exposed to vibration\u003c\/li\u003e\n\u003cli\u003eAmerican and legacy equipment maintenance\u003c\/li\u003e\n\u003cli\u003eMachinery and plant assembly\u003c\/li\u003e\n\u003cli\u003eGeneral repair of imperial fixings\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAvailable in packs of 25 to 200, with free next working day delivery on UK orders over £50 and 30-day returns.\u003c\/p\u003e","brand":"Simfix","offers":[{"title":"Pack of 25","offer_id":57507525263735,"sku":"127B1431012-D","price":4.29,"currency_code":"GBP","in_stock":false},{"title":"Pack of 200","offer_id":57507525296503,"sku":"127B1431012-T","price":12.56,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0991\/4728\/4855\/files\/simfix-2SW08_1.png?v=1789551072"},{"product_id":"1-4-flat-washer-table-3-light-bs-3410-a2-stainless-steel","title":"1\/4\" Flat Washer, Table 3 Light BS 3410 A2 Stainless Steel","description":"\u003cp\u003eThis 1\/4\" Form A flat washer is manufactured to BS 3410 in A2 stainless steel (304 grade). BS 3410 specifies the normal series flat washer - the standard size paired with the majority of metric bolt and nut combinations. Placed under a bolt head or nut face, the washer spreads the clamping load over a larger bearing area, reducing stress on the parent surface and protecting softer materials such as timber, aluminium, and plastics from marking or crushing under the fastener head.\u003c\/p\u003e\u003ch3\u003eTypical applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGeneral-purpose load spreading under bolt heads and nuts\u003c\/li\u003e\n\u003cli\u003eTimber, aluminium, and plastic substrates that need protection\u003c\/li\u003e\n\u003cli\u003eIndoor and outdoor structural assemblies\u003c\/li\u003e\n\u003cli\u003eWorkshop, engineering, and maintenance fixings\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAvailable in packs of 25 to 200, with free next working day delivery on UK orders over £50 and 30-day returns.\u003c\/p\u003e","brand":"Simfix","offers":[{"title":"Pack of 25","offer_id":57507525362039,"sku":"125A214T3L-D","price":6.48,"currency_code":"GBP","in_stock":true},{"title":"Pack of 200","offer_id":57507525394807,"sku":"125A214T3L-T","price":9.92,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0991\/4728\/4855\/files\/simfix-2FI08_1.png?v=1789550833"},{"product_id":"1-4-rect-sect-spring-washer-ansi-asme-b18-21-1-a4-stainless-steel","title":"1\/4\" Rect Sect Spring Washer ANSI\/ASME B18.21.1 A4 Stainless Steel","description":"\u003cp\u003eThis 1\/4\" spring washer is manufactured to ANSI\/ASME B18.21.1 in A4 stainless steel (316 grade). ANSI\/ASME B18.21.1 specifies the imperial series of helical spring lock washers, for maintaining tension under vibration. The split ring compresses flat as the joint is tightened and pushes back against the nut face, maintaining tension and helping the fastener resist vibration.\u003c\/p\u003e\u003ch3\u003eTypical applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eImperial threaded joints exposed to vibration\u003c\/li\u003e\n\u003cli\u003eAmerican and legacy equipment maintenance\u003c\/li\u003e\n\u003cli\u003eMachinery and plant assembly\u003c\/li\u003e\n\u003cli\u003eGeneral repair of imperial fixings\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAvailable in packs of 25 to 200, with free next working day delivery on UK orders over £50 and 30-day returns.\u003c\/p\u003e","brand":"Simfix","offers":[{"title":"Pack of 25","offer_id":57507525427575,"sku":"127UA414-D","price":17.76,"currency_code":"GBP","in_stock":true},{"title":"Pack of 200","offer_id":57507525460343,"sku":"127UA414-T","price":31.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0991\/4728\/4855\/files\/simfix-2SW08_1.png?v=1789551072"},{"product_id":"1-4-rect-sect-spring-washer-ansi-asme-b18-21-1-stainless-steel","title":"1\/4\" Rect Sect Spring Washer ANSI\/ASME B18.21.1 Stainless Steel","description":"\u003cp\u003eThis 1\/4\" spring washer is manufactured to ANSI\/ASME B18.21.1 in stainless steel. ANSI\/ASME B18.21.1 specifies the imperial series of helical spring lock washers, for maintaining tension under vibration. The split ring compresses flat as the joint is tightened and pushes back against the nut face, maintaining tension and helping the fastener resist vibration.\u003c\/p\u003e\u003ch3\u003eTypical applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eImperial threaded joints exposed to vibration\u003c\/li\u003e\n\u003cli\u003eAmerican and legacy equipment maintenance\u003c\/li\u003e\n\u003cli\u003eMachinery and plant assembly\u003c\/li\u003e\n\u003cli\u003eGeneral repair of imperial fixings\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAvailable in packs of 25 to 200, with free next working day delivery on UK orders over £50 and 30-day returns.\u003c\/p\u003e","brand":"Simfix","offers":[{"title":"Pack of 25","offer_id":57507525919095,"sku":"127B1431014-D","price":10.06,"currency_code":"GBP","in_stock":false},{"title":"Pack of 200","offer_id":57507525951863,"sku":"127B1431014-T","price":16.71,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0991\/4728\/4855\/files\/simfix-2SW08_1.png?v=1789551072"},{"product_id":"10-5-x-25-bonded-sealing-washer-a2-stainless-steel","title":"10.5 X 25 Bonded Sealing Washer A2 Stainless Steel","description":"\u003cp\u003eThis 10.5 x 25mm bonded sealing washer is manufactured in A2 stainless steel (304 grade). As the fastener is tightened the elastomer is compressed into the joint face and around the shank, forming a seal that keeps water, oil, or air from passing through the fixing hole.\u003c\/p\u003e\u003ch3\u003eTypical applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSealing bolted joints against water and weather\u003c\/li\u003e\n\u003cli\u003eRoofing, cladding, and external panel fixings\u003c\/li\u003e\n\u003cli\u003eHydraulic and fluid system connections\u003c\/li\u003e\n\u003cli\u003eVehicle, marine, and enclosure sealing\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAvailable in packs of 25 to 200, with free next working day delivery on UK orders over £50 and 30-day returns.\u003c\/p\u003e","brand":"Simfix","offers":[{"title":"Pack of 25","offer_id":57507526017399,"sku":"9055A210525-D","price":4.29,"currency_code":"GBP","in_stock":true},{"title":"Pack of 200","offer_id":57507526050167,"sku":"9055A210525-T","price":15.14,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0991\/4728\/4855\/files\/simfix-2BSW8416_1.png?v=1789550721"},{"product_id":"10-5-x-29-bonded-sealing-washer-a2-stainless-steel","title":"10.5 X 29 Bonded Sealing Washer A2 Stainless Steel","description":"\u003cp\u003eThis 10.5 x 29mm bonded sealing washer is manufactured in A2 stainless steel (304 grade). As the fastener is tightened the elastomer is compressed into the joint face and around the shank, forming a seal that keeps water, oil, or air from passing through the fixing hole.\u003c\/p\u003e\u003ch3\u003eTypical applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSealing bolted joints against water and weather\u003c\/li\u003e\n\u003cli\u003eRoofing, cladding, and external panel fixings\u003c\/li\u003e\n\u003cli\u003eHydraulic and fluid system connections\u003c\/li\u003e\n\u003cli\u003eVehicle, marine, and enclosure sealing\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAvailable in packs of 25 to 200, with free next working day delivery on UK orders over £50 and 30-day returns.\u003c\/p\u003e","brand":"Simfix","offers":[{"title":"Pack of 25","offer_id":57507526082935,"sku":"9055A210529-D","price":8.62,"currency_code":"GBP","in_stock":true},{"title":"Pack of 200","offer_id":57507526115703,"sku":"9055A210529-T","price":36.38,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0991\/4728\/4855\/files\/simfix-2BSW8416_1.png?v=1789550721"},{"product_id":"10-5mm-spherical-washer-din-6319-c-a2-stainless-steel","title":"10.5mm Spherical Washer DIN 6319-C A2 Stainless Steel","description":"\u003cp\u003eThis 10.5 spherical Washer is manufactured to DIN 6319-C in A2 stainless steel (304 grade).\u003c\/p\u003e\u003ch3\u003eTypical applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eWorkshop, maintenance, and repair work\u003c\/li\u003e\n\u003cli\u003eMachinery assembly and equipment mounting\u003c\/li\u003e\n\u003cli\u003eGeneral fabrication and engineering\u003c\/li\u003e\n\u003cli\u003eBrackets, frames, and shelving systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAvailable in packs of 25 to 200, with free next working day delivery on UK orders over £50 and 30-day returns.\u003c\/p\u003e","brand":"Simfix","offers":[{"title":"Pack of 25","offer_id":57507527065975,"sku":"6319CA2105-D","price":13.1,"currency_code":"GBP","in_stock":true},{"title":"Pack of 200","offer_id":57507527098743,"sku":"6319CA2105-T","price":80.42,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0991\/4728\/4855\/files\/simfix-din6319-c-spherical-washer-1.png?v=1791188617"},{"product_id":"12mm-conical-seat-washer-din-6319-d-a2-stainless-steel","title":"12mm Conical Seat Washer DIN 6319-D A2 Stainless Steel","description":"\u003cp\u003eThis 12 conical seat washer is manufactured to DIN 6319-D in A2 stainless steel (304 grade). DIN 6319-D specifies a coned seat that lets the fixing sit at an angle, for joints where the bolt is not square to the surface. The cone lets the head or nut find its own alignment, so the bolt is loaded in tension rather than bent by an out-of-square face.\u003c\/p\u003e\u003ch3\u003eTypical applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eStructural steel connections\u003c\/li\u003e\n\u003cli\u003eAngled and tapered sections\u003c\/li\u003e\n\u003cli\u003eMachinery and plant mounting\u003c\/li\u003e\n\u003cli\u003eRepair of misaligned joints\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAvailable in packs of 25 to 200, with free next working day delivery on UK orders over £50 and 30-day returns.\u003c\/p\u003e","brand":"Simfix","offers":[{"title":"Pack of 25","offer_id":57507527131511,"sku":"6319DA2120-D","price":14.77,"currency_code":"GBP","in_stock":true},{"title":"Pack of 200","offer_id":57507527164279,"sku":"6319DA2120-T","price":94.14,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0991\/4728\/4855\/files\/simfix-din6319-d-conical-seat-1.png?v=1791188455"},{"product_id":"13-0-x-29-bonded-sealing-washer-stainless-steel","title":"13.0 X 29 Bonded Sealing Washer Stainless Steel","description":"\u003cp\u003eThis 13.0 x 29mm bonded sealing washer is manufactured in stainless steel. As the fastener is tightened the elastomer is compressed into the joint face and around the shank, forming a seal that keeps water, oil, or air from passing through the fixing hole.\u003c\/p\u003e\u003ch3\u003eTypical applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSealing bolted joints against water and weather\u003c\/li\u003e\n\u003cli\u003eRoofing, cladding, and external panel fixings\u003c\/li\u003e\n\u003cli\u003eHydraulic and fluid system connections\u003c\/li\u003e\n\u003cli\u003eVehicle, marine, and enclosure sealing\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAvailable in packs of 25 to 200, with free next working day delivery on UK orders over £50 and 30-day returns.\u003c\/p\u003e","brand":"Simfix","offers":[{"title":"Pack of 25","offer_id":57507527197047,"sku":"9055A213029-D","price":8.51,"currency_code":"GBP","in_stock":true},{"title":"Pack of 200","offer_id":57507527229815,"sku":"9055A213029-T","price":42.55,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0991\/4728\/4855\/files\/simfix-2BSW8416_1.png?v=1789550721"},{"product_id":"2-7-x-0-5-flat-washer-din-433-a4-stainless-steel","title":"2.7 X 0.5 Flat Washer DIN 433 A4 Stainless Steel","description":"\u003cp\u003eThis 2.7 x 0.5mm small series flat washer is manufactured to DIN 433 in A4 stainless steel (316 grade). DIN 433 specifies a flat washer with a reduced outside diameter compared with the normal series, for confined spaces and smaller bearing faces. The smaller outside diameter fits where a standard washer would overhang or foul adjacent parts, while still spreading load away from the fastener head.\u003c\/p\u003e\u003ch3\u003eTypical applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eConfined assemblies where a standard washer will not fit\u003c\/li\u003e\n\u003cli\u003eCounterbores and recessed seats\u003c\/li\u003e\n\u003cli\u003eInstrument and light machine work\u003c\/li\u003e\n\u003cli\u003eGeneral engineering where clearance is tight\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAvailable in packs of 25 to 200, with free next working day delivery on UK orders over £50 and 30-day returns.\u003c\/p\u003e","brand":"Simfix","offers":[{"title":"Pack of 25","offer_id":57507528278391,"sku":"433A4027-D","price":16.78,"currency_code":"GBP","in_stock":true},{"title":"Pack of 200","offer_id":57507528311159,"sku":"433A4027-T","price":23.19,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0991\/4728\/4855\/files\/simfix-2FWCH08_1.png?v=1789550869"},{"product_id":"21mm-spherical-washer-din-6319-c-a2-stainless-steel","title":"21mm Spherical Washer DIN 6319-C A2 Stainless Steel","description":"\u003cp\u003eThis 21 spherical Washer is manufactured to DIN 6319-C in A2 stainless steel (304 grade).\u003c\/p\u003e\u003ch3\u003eTypical applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eWorkshop, maintenance, and repair work\u003c\/li\u003e\n\u003cli\u003eMachinery assembly and equipment mounting\u003c\/li\u003e\n\u003cli\u003eGeneral fabrication and engineering\u003c\/li\u003e\n\u003cli\u003eBrackets, frames, and shelving systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAvailable in packs of 10 to 50, with free next working day delivery on UK orders over £50 and 30-day returns.\u003c\/p\u003e","brand":"Simfix","offers":[{"title":"Pack of 10","offer_id":57507528409463,"sku":"6319CA2210-D","price":18.02,"currency_code":"GBP","in_stock":true},{"title":"Pack of 50","offer_id":57507528442231,"sku":"6319CA2210-T","price":80.63,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0991\/4728\/4855\/files\/simfix-din6319-c-spherical-washer-1.png?v=1791188617"},{"product_id":"23-2mm-conical-seat-washer-din-6319-d-a2-stainless-steel","title":"23.2mm Conical Seat Washer DIN 6319-D A2 Stainless Steel","description":"\u003cp\u003eThis 23.2 conical seat washer is manufactured to DIN 6319-D in A2 stainless steel (304 grade). DIN 6319-D specifies a coned seat that lets the fixing sit at an angle, for joints where the bolt is not square to the surface. The cone lets the head or nut find its own alignment, so the bolt is loaded in tension rather than bent by an out-of-square face.\u003c\/p\u003e\u003ch3\u003eTypical applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eStructural steel connections\u003c\/li\u003e\n\u003cli\u003eAngled and tapered sections\u003c\/li\u003e\n\u003cli\u003eMachinery and plant mounting\u003c\/li\u003e\n\u003cli\u003eRepair of misaligned joints\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAvailable in packs of 10 to 50, with free next working day delivery on UK orders over £50 and 30-day returns.\u003c\/p\u003e","brand":"Simfix","offers":[{"title":"Pack of 10","offer_id":57507528474999,"sku":"6319DA2232-D","price":19.98,"currency_code":"GBP","in_stock":true},{"title":"Pack of 50","offer_id":57507528507767,"sku":"6319DA2232-T","price":91.1,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0991\/4728\/4855\/files\/simfix-din6319-d-conical-seat-1.png?v=1791188455"}],"url":"https:\/\/simfix.com\/collections\/washers.oembed?page=9","provider":"Simfix","version":"1.0","type":"link"}