{"title":"Cup Washers","description":"\u003ch2\u003eCup Washer (Penny \/ Repair Washer) Selection — Quick Reference\u003c\/h2\u003e\n\u003cp\u003eCup washers (penny washers \/ repair washers) = OVERSIZED BEARING SURFACE under bolt heads + screw heads — DISTRIBUTING clamping load over LARGER AREA + preventing pull-through in soft materials + oversized + damaged holes.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eCup Washer Type\u003c\/th\u003e\n\u003cth\u003eBest For\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard Penny Washer\u003c\/td\u003e\n\u003ctd\u003eWood + soft material + standard hole pull-through\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRepair Washer\u003c\/td\u003e\n\u003ctd\u003eOversized + damaged hole — large OD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCup Washer (Domed)\u003c\/td\u003e\n\u003ctd\u003eAesthetic + decorative — covers fastener head\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeavy-Duty Penny Washer\u003c\/td\u003e\n\u003ctd\u003eHigher load + thicker section\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eZinc-Plated Standard\u003c\/td\u003e\n\u003ctd\u003eWorkshop + general\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e304 \/ 316 Stainless\u003c\/td\u003e\n\u003ctd\u003eCorrosion + outdoor + chemical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHot-Dip Galvanised\u003c\/td\u003e\n\u003ctd\u003eHeavy outdoor + extended corrosion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommon Metric (M6-M16+)\u003c\/td\u003e\n\u003ctd\u003eWorkshop standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommon Imperial (1\/4\"-1\/2\"+)\u003c\/td\u003e\n\u003ctd\u003eUS-origin equipment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eCritical:\u003c\/strong\u003e Cup\/penny washers distribute clamp force = essential for SOFT material + LARGE holes. Don't substitute for proper lock washer when vibration security is the goal — penny washer = bearing surface only. Match OD to surface needing protection. Companion: \u003ca href=\"\/en-nz\/collections\/flat-round-washers\"\u003eflat washers\u003c\/a\u003e, \u003ca href=\"\/en-nz\/collections\/spring-lock-washers\"\u003espring lock washers\u003c\/a\u003e, \u003ca href=\"\/en-nz\/collections\/lock-washers\"\u003elock washers\u003c\/a\u003e, \u003ca href=\"\/en-nz\/collections\/fasteners\"\u003efasteners\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eCup Washers\u003c\/h2\u003e\u003cp\u003eCup washers (penny washers or repair washers) provide an oversized bearing surface under bolt heads and screw heads — distributing clamping load over a larger area and preventing pull-through in soft materials and oversized or damaged holes. AIMS Industrial stocks cup washers in zinc-plated steel and stainless steel across a range of bolt and screw sizes for construction, maintenance and repair applications.\u003c\/p\u003e\u003ch3\u003eWhen Cup Washers Are Used\u003c\/h3\u003e\u003cp\u003eCup washers are specified in timber and lightweight panel construction where standard flat washers would pull through under load — roofing and cladding fixings where oversize holes are common, repairs to fixing points where the original hole has wallowed out, saddle and strap connections in timber framing, and garden structures, fencing and playground equipment where weather exposure demands a large bearing surface at every fixing point to prevent localised crushing and water pooling around bolt heads.\u003c\/p\u003e\u003ch3\u003eDifference Between Cup, Flat and Structural Washers\u003c\/h3\u003e\u003cp\u003eA standard flat washer provides moderate bearing area increase — suited to general bolt and nut use in metal and dense materials. A cup washer provides a substantially larger bearing area — suited to softer materials and over-size holes. A structural (F436 or similar) washer is a precision-hardened flat washer for structural bolt connections with defined load-bearing properties. For most timber and sheet material repair and fixing applications, a cup washer is the appropriate choice.\u003c\/p\u003e\u003ch3\u003eSizes and Materials\u003c\/h3\u003e\u003cp\u003eCup washers are sized by the bolt\/screw diameter they suit — M4, M5, M6, M8, M10 and M12 being the most common. Outer diameters typically range from 20mm to 50mm depending on the nominal bolt size and the amount of bearing area increase required. For help selecting the right washer type and size for your fixing application, \u003ca href=\"\/en-nz\/pages\/contact-us\"\u003econtact our team\u003c\/a\u003e. AIMS Industrial has been supporting Australian tradespeople since 1988.\u003c\/p\u003e","products":[{"product_id":"metric-cup-washer-304-stainless-steel","title":"Metric Cup Washer - 304 Stainless Steel","description":"\u003cdiv style=\"max-width:680px;width:100%;padding:8px 0;font-family:Arial,sans-serif\"\u003e\n\u003cdiv style=\"display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px;padding:8px 0\"\u003e\n\u003cdiv style=\"padding:0 8px;display:flex;align-items:flex-start;gap:8px\"\u003e\n\u003cspan style=\"font-size:14px;color:#222;line-height:1.4;flex:0 0 auto\"\u003e◆\u003c\/span\u003e\u003cspan style=\"font-size:14px;color:#333;line-height:1.4\"\u003eGrade 304 stainless for everyday corrosion resistance\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding:0 8px;display:flex;align-items:flex-start;gap:8px\"\u003e\n\u003cspan style=\"font-size:14px;color:#222;line-height:1.4;flex:0 0 auto\"\u003e●\u003c\/span\u003e\u003cspan style=\"font-size:14px;color:#333;line-height:1.4\"\u003eSize range 6G to 14G\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding:0 8px;display:flex;align-items:flex-start;gap:8px\"\u003e\n\u003cspan style=\"font-size:14px;color:#222;line-height:1.4;flex:0 0 auto\"\u003e▲\u003c\/span\u003e\u003cspan style=\"font-size:14px;color:#333;line-height:1.4\"\u003eCup profile sits the screw head flush\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top:16px\"\u003e\u003cp style=\"font-size:14px;line-height:1.6;color:#333;margin:0\"\u003eGrade 304 stainless steel delivers reliable corrosion resistance for indoor, outdoor and food-contact use, giving this cup washer a long working life in standard Australian conditions. Used to distribute clamping load and protect the surface under a bolt head or nut, this flat washer is a stock-in-trade fastener accessory.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Inox World","offers":[{"title":"6G","offer_id":49273196970261,"sku":"A0073031","price":2.25,"currency_code":"AUD","in_stock":false},{"title":"8G","offer_id":49273196839189,"sku":"A0073032","price":2.0,"currency_code":"AUD","in_stock":true},{"title":"10G","offer_id":49273196871957,"sku":"A0073033","price":2.84,"currency_code":"AUD","in_stock":true},{"title":"12G","offer_id":49273196937493,"sku":"A0073034","price":3.62,"currency_code":"AUD","in_stock":false},{"title":"14G","offer_id":49273196904725,"sku":"A0073035","price":11.77,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0740\/5191\/1957\/files\/WasherMCup304.png?v=1756542710"},{"product_id":"cup-washer-assortment-refill-ca1630-champion","title":"Cup Washer Assortment Refill (CA1630)- Champion","description":"\u003cdiv style=\"max-width:680px;width:100%;padding:12px 0;font-family:Arial,sans-serif;\"\u003e\n\u003cdiv style=\"display:flex;align-items:flex-start;justify-content:space-between;border-top:1px solid #e0e0e0;border-bottom:1px solid #e0e0e0;padding:16px 0;margin-bottom:24px;\"\u003e\n\u003cdiv style=\"flex:1;padding:0 12px;text-align:center;\"\u003e\n\u003cdiv style=\"font-size:24px;color:#333;margin-bottom:6px;line-height:1;\"\u003e◆\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px;font-weight:500;color:#333;line-height:1.4;\"\u003eProtects surfaces under nuts and bolts\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1;padding:0 12px;text-align:center;\"\u003e\n\u003cdiv style=\"font-size:24px;color:#333;margin-bottom:6px;line-height:1;\"\u003e●\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px;font-weight:500;color:#333;line-height:1.4;\"\u003eTrade-grade Champion stock\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1;padding:0 12px;text-align:center;\"\u003e\n\u003cdiv style=\"font-size:24px;color:#333;margin-bottom:6px;line-height:1;\"\u003e▲\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px;font-weight:500;color:#333;line-height:1.4;\"\u003eWorkshop refill pack\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size:14px;line-height:1.6;color:#444;margin:0;\"\u003eThe Champion Cup Washer refill is made to spread load under bolt heads and nuts. A reliable Champion line for service work. Stocked and supported by AIMS.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Champion","offers":[{"title":"3.5mm","offer_id":49289824534805,"sku":"A0127170","price":8.12,"currency_code":"AUD","in_stock":true},{"title":"4.2mm","offer_id":49289824567573,"sku":"A0127171","price":8.42,"currency_code":"AUD","in_stock":true},{"title":"4.8mm","offer_id":49289824600341,"sku":"A0127172","price":6.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0740\/5191\/1957\/files\/cup-washer-assortment-refill-ca1630-champion-2317823.jpg?v=1781518753"},{"product_id":"cup-washer-assortment-refill-ca550-champion","title":"Cup Washer Assortment Refill (CA550) - Champion","description":"\u003cdiv style=\"max-width:680px;width:100%;padding:12px 0;font-family:Arial,sans-serif;\"\u003e\n\u003cdiv style=\"display:flex;align-items:flex-start;justify-content:space-between;border-top:1px solid #e0e0e0;border-bottom:1px solid #e0e0e0;padding:16px 0;margin-bottom:24px;\"\u003e\n\u003cdiv style=\"flex:1;padding:0 12px;text-align:center;\"\u003e\n\u003cdiv style=\"font-size:24px;color:#333;margin-bottom:6px;line-height:1;\"\u003e◆\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px;font-weight:500;color:#333;line-height:1.4;\"\u003eLoad-spreading under nuts and bolts\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1;padding:0 12px;text-align:center;\"\u003e\n\u003cdiv style=\"font-size:24px;color:#333;margin-bottom:6px;line-height:1;\"\u003e●\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px;font-weight:500;color:#333;line-height:1.4;\"\u003eTrade-grade Champion stock\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1;padding:0 12px;text-align:center;\"\u003e\n\u003cdiv style=\"font-size:24px;color:#333;margin-bottom:6px;line-height:1;\"\u003e▲\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px;font-weight:500;color:#333;line-height:1.4;\"\u003eTop-up refill pack\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size:14px;line-height:1.6;color:#444;margin:0;\"\u003eChampion Cup Washer refill, to spread load under bolt heads and nuts. A reliable Champion line for service work. Stocked and supported by AIMS.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Champion","offers":[{"title":"3.5mm","offer_id":49291059757333,"sku":"A0129217","price":4.42,"currency_code":"AUD","in_stock":true},{"title":"4.2mm","offer_id":49291059790101,"sku":"A0129218","price":4.47,"currency_code":"AUD","in_stock":true},{"title":"4.8mm","offer_id":49291059822869,"sku":"A0129219","price":4.14,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0740\/5191\/1957\/files\/cup-washer-assortment-refill-ca550-champion-3626446.jpg?v=1781517911"},{"product_id":"cup-washer-hec-natural-nylon","title":"Cup Washer HEC Natural Nylon","description":"\u003cdiv style=\"max-width:680px;width:100%;padding:12px 0;font-family:Arial,sans-serif;\"\u003e\n\u003cdiv style=\"display:flex;align-items:flex-start;justify-content:space-between;border-top:1px solid #e0e0e0;border-bottom:1px solid #e0e0e0;padding:16px 0;margin-bottom:24px;\"\u003e\n\u003cdiv style=\"flex:1;padding:0 12px;text-align:center;\"\u003e\n\u003cdiv style=\"font-size:24px;color:#333;margin-bottom:6px;line-height:1;\"\u003e◆\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px;font-weight:500;color:#333;line-height:1.4;\"\u003eSpreads clamping load and prevents pull-through on soft substrates\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1;padding:0 12px;text-align:center;\"\u003e\n\u003cdiv style=\"font-size:24px;color:#333;margin-bottom:6px;line-height:1;\"\u003e●\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px;font-weight:500;color:#333;line-height:1.4;\"\u003eManufactured to ISO, DIN and AS engineering standards\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1;padding:0 12px;text-align:center;\"\u003e\n\u003cdiv style=\"font-size:24px;color:#333;margin-bottom:6px;line-height:1;\"\u003e▲\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px;font-weight:500;color:#333;line-height:1.4;\"\u003eSuits standard Metric, UNC, UNF and BSW bolted joints\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size:14px;line-height:1.6;color:#444;margin:0;\"\u003eCup Washer HEC Natural Nylon, including mudguard and supa washers, are engineered for daily trade and industrial fastening work. Load spreading, pull-through resistance and corrosion-rated finishes deliver reliable assembly across soft substrates, roofing, cladding and general fastening. Stocked at AIMS Industrial as part of the Hobson range.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hobson","offers":[{"title":"M3","offer_id":49333494907157,"sku":"A0133668","price":74.1,"currency_code":"AUD","in_stock":true},{"title":"M4","offer_id":49333494939925,"sku":"A0133669","price":88.79,"currency_code":"AUD","in_stock":true},{"title":"M5","offer_id":49333494972693,"sku":"A0133670","price":108.77,"currency_code":"AUD","in_stock":true},{"title":"M6","offer_id":49333495005461,"sku":"A0133671","price":138.12,"currency_code":"AUD","in_stock":true},{"title":"M8","offer_id":49333495038229,"sku":"A0133672","price":216.96,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0740\/5191\/1957\/files\/cup-washer-hec-natural-nylon-2395433.jpg?v=1776151210"},{"product_id":"nylon-rcc-cup-finishing-washer-black","title":"Nylon RCC Cup Finishing Washer Black","description":"\u003cdiv style=\"max-width:680px;width:100%;padding:12px 0;font-family:Arial,sans-serif;\"\u003e\n\u003cdiv style=\"display:flex;align-items:flex-start;justify-content:space-between;border-top:1px solid #e0e0e0;border-bottom:1px solid #e0e0e0;padding:16px 0;margin-bottom:24px;\"\u003e\n\u003cdiv style=\"flex:1;padding:0 12px;text-align:center;\"\u003e\n\u003cdiv style=\"font-size:24px;color:#333;margin-bottom:6px;line-height:1;\"\u003e◆\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px;font-weight:500;color:#333;line-height:1.4;\"\u003eSpreads clamping load and prevents pull-through on soft substrates\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1;padding:0 12px;text-align:center;\"\u003e\n\u003cdiv style=\"font-size:24px;color:#333;margin-bottom:6px;line-height:1;\"\u003e●\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px;font-weight:500;color:#333;line-height:1.4;\"\u003eManufactured to ISO, DIN and AS engineering standards\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1;padding:0 12px;text-align:center;\"\u003e\n\u003cdiv style=\"font-size:24px;color:#333;margin-bottom:6px;line-height:1;\"\u003e▲\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px;font-weight:500;color:#333;line-height:1.4;\"\u003eSuits standard Metric, UNC, UNF and BSW bolted joints\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size:14px;line-height:1.6;color:#444;margin:0;\"\u003eNylon RCC Cup Finishing Washer Black, including mudguard and supa washers, are engineered for daily trade and industrial fastening work. Load spreading, pull-through resistance and corrosion-rated finishes deliver reliable assembly across soft substrates, roofing, cladding and general fastening. Stocked at AIMS Industrial as part of the Hobson range.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hobson","offers":[{"title":"M3","offer_id":49333707178261,"sku":"A0133705","price":44.18,"currency_code":"AUD","in_stock":true},{"title":"M4","offer_id":49333707211029,"sku":"A0133706","price":47.08,"currency_code":"AUD","in_stock":true},{"title":"M5","offer_id":49333707243797,"sku":"A0133707","price":53.24,"currency_code":"AUD","in_stock":true},{"title":"M6","offer_id":49333707276565,"sku":"A0133708","price":75.06,"currency_code":"AUD","in_stock":true},{"title":"M8","offer_id":49333707309333,"sku":"A0133709","price":86.94,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0740\/5191\/1957\/files\/nylon-rcc-cup-finishing-washer-black-2978353.jpg?v=1776151040"},{"product_id":"champion-ccw-cup-washer-steel-nickel-plated","title":"Champion CCW Cup Washer Steel Nickel Plated","description":"\u003cdiv style=\"max-width:680px;width:100%;padding:12px 0;font-family:Arial,sans-serif;\"\u003e\n\u003cdiv style=\"display:flex;align-items:flex-start;justify-content:space-between;border-top:1px solid #e0e0e0;border-bottom:1px solid #e0e0e0;padding:16px 0;margin-bottom:24px;\"\u003e\n\u003cdiv style=\"flex:1;padding:0 12px;text-align:center;\"\u003e\n\u003cdiv style=\"font-size:24px;color:#333;margin-bottom:6px;line-height:1;\"\u003e◆\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px;font-weight:500;color:#333;line-height:1.4;\"\u003ePuts a range of fastener sizes in one organised box for fast service work\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1;padding:0 12px;text-align:center;\"\u003e\n\u003cdiv style=\"font-size:24px;color:#333;margin-bottom:6px;line-height:1;\"\u003e●\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px;font-weight:500;color:#333;line-height:1.4;\"\u003eManufactured by Champion Fasteners to recognised commercial and engineering standards\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1;padding:0 12px;text-align:center;\"\u003e\n\u003cdiv style=\"font-size:24px;color:#333;margin-bottom:6px;line-height:1;\"\u003e▲\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px;font-weight:500;color:#333;line-height:1.4;\"\u003eCompatible with standard metric and imperial fastening across automotive, plumbing and trade service\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size:14px;line-height:1.6;color:#444;margin:0;\"\u003eBuilt for daily trade service, Champion CCW Cup Washer Steel Nickel Plated pairs a curated range of fastener sizes with bulk service-pack convenience. Used across automotive service and repair, plumbing and gas fitting, mechanical equipment maintenance and general trade fabrication. AIMS Industrial stocks the Champion Fasteners range nationwide.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Champion","offers":[{"title":"3.5 mm","offer_id":49339944829205,"sku":"A0166509","price":9.22,"currency_code":"AUD","in_stock":true},{"title":"4.2 mm","offer_id":49339944861973,"sku":"A0166510","price":9.46,"currency_code":"AUD","in_stock":true},{"title":"4.8 mm","offer_id":49339944894741,"sku":"A0166511","price":8.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0740\/5191\/1957\/files\/champion-ccw-cup-washer-steel-nickel-plated-9331670.jpg?v=1776143844"}],"url":"https:\/\/aimsindustrial.com.au\/en-nz\/collections\/cup-washers.oembed","provider":"AIMS Industrial Supplies","version":"1.0","type":"link"}