{"product_id":"the-exact-fit-stainless-washer-set","title":"The Exact Fit | 304 Stainless Flat Washer Assortment, 620 or 1010 Pieces, M2 to M12","description":"\u003cp\u003eA washer is the least glamorous part in any assembly and the one that decides whether the joint holds. It spreads clamp load across a wider footprint, protects the substrate from the nut face, and keeps dissimilar metals from galling each other. Skip it and the bolt crushes the material it was meant to secure. Use the wrong thickness and the fastener runs out of thread before it reaches torque.\u003c\/p\u003e\u003cp\u003eThe Exact Fit is a compartmented assortment of 304 stainless flat washers in eight or nine metric sizes running from M2 to M12, following the DIN 125 proportions that most European and Asian hardware is designed around. Thickness runs 0.5mm to 1.5mm across the range, so the stack height is predictable instead of improvised. 304 stainless carries the corrosion resistance that matters for wet environments, outdoor fittings, marine hardware and anything that will be inspected in five years rather than five weeks.\u003c\/p\u003e\u003cp\u003eThe case is the part most kits get wrong. Dividers hold each size in its own bay, the latch is positive rather than decorative, and the lid stays shut in a toolbox that gets carried. Two configurations are stocked: 620 pieces across nine sizes, and 1010 pieces across eight sizes for benches that consume M4, M5 and M6 faster than anything else. Both are RoHS compliant, which matters for anyone building equipment that will be sold into the EU.\u003c\/p\u003e\u003cp\u003eBuying washers by the hundred from a local supplier costs a counter visit and a minimum order. Buying an assortment costs one shelf slot and ends the interruption.\u003c\/p\u003e\u003cp\u003eSizing is the one decision that rewards five seconds of thought. The washer bore should clear the bolt shank without slop, and the outer diameter should be wide enough to bridge the hole but not so wide that it overhangs the material and deforms under load. For soft substrates such as plastic or thin aluminium, a thicker washer spreads the load better than a wide thin one. For electrical work, a single flat washer under the nut is usually enough; stacking two adds a joint that can loosen under thermal cycling. Keep the case closed between jobs, because mixed washers cost more time to sort than they save in the moment.\u003c\/p\u003e\u003cdiv class=\"product-features\"\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul style=\"list-style:none;padding:0;\"\u003e\n\u003cli\u003e✦ 304 stainless steel washers with genuine corrosion resistance, not zinc-plated mild steel\u003c\/li\u003e\n\u003cli\u003e✦ Metric range from M2 to M12 covering the sizes that actually get used\u003c\/li\u003e\n\u003cli\u003e✦ DIN 125 proportions with 0.5mm to 1.5mm thickness for predictable stack height\u003c\/li\u003e\n\u003cli\u003e✦ 620-piece nine-size or 1010-piece eight-size configuration\u003c\/li\u003e\n\u003cli\u003e✦ Compartmented case with positive latch and size-separated bays\u003c\/li\u003e\n\u003cli\u003e✦ RoHS compliant for equipment sold into the European market\u003c\/li\u003e\n\u003cli\u003e✦ Suitable for wet, outdoor, marine and electrical connection environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-specs\"\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul style=\"list-style:none;padding:0;\"\u003e\n\u003cli style=\"border-bottom:1px solid #eee;padding:9px 0;\"\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 stainless steel\u003c\/li\u003e\n\u003cli style=\"border-bottom:1px solid #eee;padding:9px 0;\"\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e DIN 125 flat washer proportions\u003c\/li\u003e\n\u003cli style=\"border-bottom:1px solid #eee;padding:9px 0;\"\u003e\n\u003cstrong\u003eThickness range:\u003c\/strong\u003e 0.5mm to 1.5mm\u003c\/li\u003e\n\u003cli style=\"border-bottom:1px solid #eee;padding:9px 0;\"\u003e\n\u003cstrong\u003e620-piece set:\u003c\/strong\u003e 9 sizes, M2 to M12 including M2.5\u003c\/li\u003e\n\u003cli style=\"border-bottom:1px solid #eee;padding:9px 0;\"\u003e\n\u003cstrong\u003e1010-piece set:\u003c\/strong\u003e 8 sizes, M2, M3, M4, M5, M6, M8, M10, M12\u003c\/li\u003e\n\u003cli style=\"border-bottom:1px solid #eee;padding:9px 0;\"\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e plain, no plating to chip or flake\u003c\/li\u003e\n\u003cli style=\"border-bottom:1px solid #eee;padding:9px 0;\"\u003e\n\u003cstrong\u003eCertification:\u003c\/strong\u003e RoHS compliant\u003c\/li\u003e\n\u003cli style=\"border-bottom:1px solid #eee;padding:9px 0;\"\u003e\n\u003cstrong\u003eCase:\u003c\/strong\u003e divided plastic box with latch\u003c\/li\u003e\n\u003cli style=\"border-bottom:1px solid #eee;padding:9px 0;\"\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e sheet metal, drywall, fencing, electrical, automotive, marine\u003c\/li\u003e\n\u003cli style=\"border-bottom:1px solid #eee;padding:9px 0;\"\u003e\n\u003cstrong\u003eMagnetic behaviour:\u003c\/strong\u003e weakly magnetic, as expected of 304 austenitic grade\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-applications\"\u003e\n\u003ch3\u003eApplication Scenarios\u003c\/h3\u003e\n\u003cp\u003eElectrical contractors use them behind terminal lugs where a stainless washer keeps the connection from loosening under heat cycling. Boat owners keep a case aboard because 304 survives salt spray far better than zinc-plated hardware. Workshop benches that rebuild small engines reach for M6 and M8 constantly, and the 1010-piece configuration is weighted toward that consumption. Makers building enclosures, camera rigs and 3D printer frames use the M2 and M2.5 sizes that hardware stores rarely stock below a hundred-piece minimum.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-faq\"\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is 304 stainless good enough for marine use?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: For fresh water and occasional salt exposure, yes. Permanent saltwater immersion calls for 316, which carries molybdenum for chloride resistance. 304 will stain rather than fail in splash zones.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Why are the washers slightly magnetic?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: 304 is austenitic stainless and can become mildly magnetic after cold forming. A weak pull is normal and does not indicate mild steel. A strong pull would.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Which set should I choose, 620 or 1010 pieces?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The 620-piece set adds M2.5 and suits mixed light assembly. The 1010-piece set carries more of the M4 to M6 sizes that workshop and maintenance use consumes fastest.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I use these with high-tensile bolts?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Yes. Flat washers are not the load-limiting part in a joint. Match the washer bore to the bolt diameter and confirm the assembly still reaches specified torque with the added thickness.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Do the dividers stay in place when the case is carried?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Yes, the bays are moulded into the case rather than inserted as loose cards, and the latch holds the lid closed. Keep the case flat in transport to prevent mixing between bays.\u003c\/p\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Are these washers suitable for outdoor decking screws?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: For stainless or coated decking screws, yes. 304 resists weathering and will not leave rust streaks on timber, which is the usual complaint with zinc-plated washers in exterior work.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the difference between DIN 125 and SAE washers?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: DIN 125 is the metric standard with proportionally thinner sections and metric bore sizing. SAE washers are sized in inches. Mixing the two on a metric fastener usually produces a loose or off-centre fit.\u003c\/p\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Are these washers suitable for outdoor decking screws?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: For stainless or coated decking screws, yes. 304 resists weathering and will not leave rust streaks on timber, which is the usual complaint with zinc-plated washers in exterior work.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the difference between DIN 125 and SAE washers?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: DIN 125 is the metric standard with proportionally thinner sections and metric bore sizing. SAE washers are sized in inches. Mixing the two on a metric fastener usually produces a loose or off-centre fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-promise\"\u003e\n\u003ch3\u003eThe EastSupplier Promise\u003c\/h3\u003e\n\u003cul style=\"list-style:none;padding:0;\"\u003e\n\u003cli style=\"padding:7px 0;\"\u003e✦ Every unit inspected before dispatch, with the specifications listed on this page checked against the shipped item.\u003c\/li\u003e\n\u003cli style=\"padding:7px 0;\"\u003e✦ Tracked international shipping with a dispatch window confirmed at checkout.\u003c\/li\u003e\n\u003cli style=\"padding:7px 0;\"\u003e✦ Direct replacement for units that arrive damaged or fail within the warranty period, handled by message rather than by form.\u003c\/li\u003e\n\u003cli style=\"padding:7px 0;\"\u003e✦ Sourcing support for bulk and repeat orders, including consolidated shipping and custom quantity pricing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-gallery\" style=\"margin-top:30px;text-align:center;\"\u003e\n\u003ch3\u003eProduct Gallery\u003c\/h3\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/products\/A4aa994f7edfa4cf5bf7fe448d28f2dd4J.jpg?v=1671518864\" alt=\"The Exact Fit | 304 Stainless Flat Washer Assortment, 620 or 1010 Pieces, M2 to M12 - view 1\" loading=\"lazy\" style=\"max-width:100%;margin:0 0 12px;border-radius:6px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/products\/H784e92f5bea14bb59d3481c8e6ffc304e.jpg?v=1671518866\" alt=\"The Exact Fit | 304 Stainless Flat Washer Assortment, 620 or 1010 Pieces, M2 to M12 - view 2\" loading=\"lazy\" style=\"max-width:100%;margin:0 0 12px;border-radius:6px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/products\/H19f056d5ec944505ada13680ee8b5147C.jpg?v=1671518867\" alt=\"The Exact Fit | 304 Stainless Flat Washer Assortment, 620 or 1010 Pieces, M2 to M12 - view 3\" loading=\"lazy\" style=\"max-width:100%;margin:0 0 12px;border-radius:6px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/products\/Aed812142567a422d9b7a0a9a283fc80cf.jpg?v=1671518870\" alt=\"The Exact Fit | 304 Stainless Flat Washer Assortment, 620 or 1010 Pieces, M2 to M12 - view 4\" loading=\"lazy\" style=\"max-width:100%;margin:0 0 12px;border-radius:6px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/products\/Ae6e05719fd0c4041a3c42c5391a54b08I.jpg?v=1671518873\" alt=\"The Exact Fit | 304 Stainless Flat Washer Assortment, 620 or 1010 Pieces, M2 to M12 - view 5\" loading=\"lazy\" style=\"max-width:100%;margin:0 0 12px;border-radius:6px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/products\/Addf27061148d4300b451b2f7287742d82.jpg?v=1671518874\" alt=\"The Exact Fit | 304 Stainless Flat Washer Assortment, 620 or 1010 Pieces, M2 to M12 - view 6\" loading=\"lazy\" style=\"max-width:100%;margin:0 0 12px;border-radius:6px;\"\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"Product\", \"name\": \"The Exact Fit | 304 Stainless Flat Washer Assortment, 620 or 1010 Pieces, M2 to M12\", \"sku\": \"7973137580255\", \"description\": \"304 stainless flat washer assortment in 620 or 1010 piece configurations, DIN 125, M2 to M12, 0.5 to 1.5mm thickness, in a compartmented case. 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