{"product_id":"a2-stainless-steel-penny-repair-washers-large-od-flat-washers-for-m4-to-m12-bolts","title":"A2 Stainless Steel Penny Repair Washers – Large OD Flat Washers for M4 to M12 Bolts","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e \u003cmeta content=\"width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=yes\" name=\"viewport\"\u003e\u003c\/p\u003e\n\u003cstyle\u003e\n \/* ========================\n Prefix: hd-penny- (prevents theme conflicts)\n Encapsulated styles for Shopify product description\n ======================== *\/\n .hd-penny-wrapper {\n width: 100%;\n margin: 0;\n padding: 0;\n box-sizing: border-box;\n font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n color: #1a1a1a;\n line-height: 1.5;\n background: transparent;\n }\n .hd-penny-wrapper *,\n .hd-penny-wrapper *::before,\n .hd-penny-wrapper *::after {\n box-sizing: inherit;\n }\n .hd-penny-container {\n max-width: 1400px;\n margin: 0 auto;\n padding: 1.5rem 1rem;\n background: #ffffff;\n }\n \/* Typography *\/\n .hd-penny-title {\n font-size: 1.9rem;\n font-weight: 600;\n margin: 0 0 0.5rem 0;\n letter-spacing: -0.01em;\n line-height: 1.2;\n color: #0a0a0a;\n }\n .hd-penny-brand {\n font-size: 1rem;\n color: #2c7da0;\n margin-bottom: 1rem;\n font-weight: 500;\n display: inline-block;\n background: #eef4fc;\n padding: 0.2rem 0.8rem;\n border-radius: 30px;\n }\n .hd-penny-section-title {\n font-size: 1.6rem;\n font-weight: 600;\n margin: 1.8rem 0 1rem 0;\n padding-bottom: 0.5rem;\n border-bottom: 3px solid #2c7da0;\n display: inline-block;\n color: #0b3b4f;\n }\n .hd-penny-description {\n font-size: 1rem;\n margin: 1rem 0 1.2rem;\n color: #2c2c2c;\n }\n \/* Features list - vertical layout (SEO friendly) *\/\n .hd-penny-features-list {\n list-style: none;\n padding: 0;\n margin: 1.2rem 0 1.8rem;\n }\n .hd-penny-features-list li {\n padding: 0.75rem 0 0.75rem 1.8rem;\n position: relative;\n font-size: 1rem;\n border-bottom: 1px solid #f0f0f0;\n }\n .hd-penny-features-list li:last-child {\n border-bottom: none;\n }\n .hd-penny-features-list li::before {\n content: \"✅\";\n position: absolute;\n left: 0;\n top: 0.75rem;\n font-size: 1rem;\n }\n \/* Table styles *\/\n .hd-penny-table-wrapper {\n overflow-x: auto;\n margin: 1.5rem 0 1rem;\n border-radius: 16px;\n border: 1px solid #e2e8f0;\n background: #ffffff;\n }\n .hd-penny-specs-table {\n width: 100%;\n border-collapse: collapse;\n font-size: 0.9rem;\n min-width: 550px;\n }\n .hd-penny-specs-table th,\n .hd-penny-specs-table td {\n padding: 0.9rem 0.8rem;\n text-align: left;\n border-bottom: 1px solid #e9ecef;\n vertical-align: top;\n }\n .hd-penny-specs-table th {\n background-color: #f1f9fe;\n font-weight: 700;\n color: #0b3b4f;\n font-size: 0.9rem;\n }\n .hd-penny-specs-table tr:last-child td {\n border-bottom: none;\n }\n .hd-penny-note {\n background: #f8fafc;\n padding: 0.8rem 1rem;\n border-radius: 12px;\n font-size: 0.85rem;\n color: #2c5a74;\n margin: 0.8rem 0 1rem;\n border-left: 4px solid #2c7da0;\n }\n \/* FAQ section - fully expanded, no accordion *\/\n .hd-penny-faq-item {\n margin-bottom: 1.5rem;\n border-bottom: 1px solid #e9ecef;\n padding-bottom: 1.2rem;\n }\n .hd-penny-faq-question {\n font-weight: 700;\n font-size: 1.05rem;\n margin: 0 0 0.5rem 0;\n color: #0f4c5f;\n display: flex;\n align-items: center;\n gap: 8px;\n }\n .hd-penny-faq-question::before {\n content: \"🔧\";\n font-size: 1.1rem;\n }\n .hd-penny-faq-answer {\n font-size: 0.95rem;\n color: #2d3e50;\n line-height: 1.5;\n margin-left: 1.2rem;\n }\n \/* Responsive *\/\n @media (max-width: 768px) {\n .hd-penny-container {\n padding: 1rem 0.9rem;\n }\n .hd-penny-title {\n font-size: 1.6rem;\n }\n .hd-penny-section-title {\n font-size: 1.4rem;\n }\n .hd-penny-specs-table th,\n .hd-penny-specs-table td {\n padding: 0.7rem 0.5rem;\n font-size: 0.8rem;\n }\n }\n .hd-penny-divider {\n height: 1px;\n background: #e9ecef;\n margin: 1.5rem 0;\n }\n .hd-penny-text-small {\n font-size: 0.85rem;\n color: #5a6874;\n }\n \u003c\/style\u003e\n\u003cdiv class=\"hd-penny-wrapper\"\u003e\n\u003cdiv class=\"hd-penny-container\"\u003e\n\u003c!-- Product title (customer-facing) --\u003e\n\u003ch1 class=\"hd-penny-title\"\u003e🛡️ A2 Stainless Steel Penny Repair Washers – Large OD Flat Washers for M4 to M12 Bolts\u003c\/h1\u003e\n\u003cdiv class=\"hd-penny-brand\"\u003e🏷️ Brand: HomeDIYer Fastener | DIN126 | A2-70\u003c\/div\u003e\n\u003c!-- Product Overview: natural, solution-oriented --\u003e\n\u003cdiv class=\"hd-penny-description\"\u003e\n\u003cstrong\u003e📌 Overview — Fix oversized holes, reinforce thin materials, and stop pull-through.\u003c\/strong\u003e Ever tried to bolt through a rusted panel or a worn-out mounting hole? Standard washers just don’t cut it. Our \u003cstrong\u003eA2 Stainless Steel Penny Washers (also known as repair or mudguard washers)\u003c\/strong\u003e feature an extra-large outer diameter to distribute load over a wider area. Whether you’re repairing boat decks, mending farm equipment, installing automotive trim, or reinforcing plastic\/composite parts, these washers provide the strength and coverage you need. Made from corrosion-resistant A2-70 stainless steel, they last outdoors and resist rust. Choose from multiple outer diameter options per thread size — perfect for DIY repairs, marine projects, and industrial maintenance.\u003c\/div\u003e\n\u003cdiv class=\"hd-penny-description\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/KAY03_7.jpg?v=1776757973\" alt=\"\"\u003e\u003c\/div\u003e\n\u003c!-- Features: vertical list for SEO \u0026 readability --\u003e\n\u003ch2 class=\"hd-penny-section-title\"\u003e✨ Key Features of A2 Stainless Steel Penny Repair Washers\u003c\/h2\u003e\n\u003cul class=\"hd-penny-features-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtra-Large Outer Diameter (Penny Style)\u003c\/strong\u003e – Covers elongated or damaged holes, prevents fastener pull-through in soft materials like wood, plastic, or fiberglass.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA2-70 Stainless Steel (304 equivalent)\u003c\/strong\u003e – Excellent corrosion resistance for marine, coastal, and outdoor applications. No red rust or staining.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple OD Options per Size\u003c\/strong\u003e – From M4 to M12, choose the exact outer diameter that fits your repair or assembly (e.g., 12mm up to 40mm+).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIN126 Standard Flat Washer Profile\u003c\/strong\u003e – Precision punched, smooth edges, and consistent thickness for reliable clamping force.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlso known as Mudguard \/ Fender Washers\u003c\/strong\u003e – Trusted by mechanics and bodywork specialists for spreading load under bolt heads or nuts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUntreated Natural Finish\u003c\/strong\u003e – No coatings to chip or peel; the stainless surface stays clean and professional.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePick Your Quantity\u003c\/strong\u003e – “As per Your Choice” packaging: order exactly what you need, no forced mixed packs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/KAY03_6.jpg?v=1776757973\" alt=\"\"\u003e\u003c\/p\u003e\n\u003c!-- Specifications Table: detailed dimensions with OD options --\u003e\n\u003ch2 class=\"hd-penny-section-title\"\u003e📏 Technical Specifications – Penny Flat Washers (DIN126, Metric)\u003c\/h2\u003e\n\u003cdiv class=\"hd-penny-table-wrapper\"\u003e\n\u003ctable class=\"hd-penny-specs-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Size (Bolt\/Screw)\u003c\/th\u003e\n\u003cth\u003eInternal Diameter (mm)\u003c\/th\u003e\n\u003cth\u003eThickness (mm)\u003c\/th\u003e\n\u003cth\u003eOuter Diameter Options (mm)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eM4\u003c\/td\u003e\n\u003ctd\u003e4.0\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003ctd\u003e12, 15, 20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM5\u003c\/td\u003e\n\u003ctd\u003e5.0\u003c\/td\u003e\n\u003ctd\u003e1.2\u003c\/td\u003e\n\u003ctd\u003e15, 20, 25, 30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\"\u003eM6\u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003e6.0\u003c\/td\u003e\n\u003ctd\u003e1.2 (for OD20)\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1.5 (for OD25,30,40)\u003c\/td\u003e\n\u003ctd\u003e25, 30, 40\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\"\u003eM8\u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003e8.0\u003c\/td\u003e\n\u003ctd\u003e1.5 (for OD20,25,30,40)\u003c\/td\u003e\n\u003ctd\u003e20, 25, 30, 40\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2.0 (for OD35)\u003c\/td\u003e\n\u003ctd\u003e35\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM10\u003c\/td\u003e\n\u003ctd\u003e10.0\u003c\/td\u003e\n\u003ctd\u003e1.5\u003c\/td\u003e\n\u003ctd\u003e25, 30, 40\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM12*\u003c\/td\u003e\n\u003ctd\u003e12.0\u003c\/td\u003e\n\u003ctd\u003e1.8 (typical)\u003c\/td\u003e\n\u003ctd\u003e30, 40, 50 (available upon request)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hd-penny-note\"\u003e💡 \u003cstrong\u003eImportant notes:\u003c\/strong\u003e “Penny washers” are also called repair or mudguard washers. The large OD helps bridge corroded or oversized holes. \u003cbr\u003e* M12 dimensions are based on common industry practice; for exact dimensions or custom sizes, please contact us before ordering. \u003cbr\u003e✅ \u003cstrong\u003ePackaging:\u003c\/strong\u003e Sold as per your choice – select thread size, outer diameter, and quantity. All washers are A2 stainless, untreated.\u003c\/div\u003e\n\u003c!-- Additional note on material --\u003e\n\u003cdiv style=\"background: #fef9e6; border-left-color: #e6a017;\" class=\"hd-penny-note\"\u003e🧲 \u003cstrong\u003eWhy A2-70 Stainless?\u003c\/strong\u003e – High resistance to rust, salt spray, and chemicals. Ideal for boat trailers, outdoor signs, roof repairs, and any damp environment.\u003c\/div\u003e\n\u003c!-- FAQ section (expanded, no accordion) --\u003e\n\u003ch2 class=\"hd-penny-section-title\"\u003e\u003c\/h2\u003e\n\u003ch2 class=\"hd-penny-section-title\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/KAY03_8.jpg?v=1776757973\" alt=\"\"\u003e\u003c\/h2\u003e\n\u003ch2 class=\"hd-penny-section-title\"\u003e❓ Frequently Asked Questions – Penny Repair Washers\u003c\/h2\u003e\n\u003cdiv class=\"hd-penny-faq-item\"\u003e\n\u003cdiv class=\"hd-penny-faq-question\"\u003eWhat’s the difference between a penny washer and a regular flat washer?\u003c\/div\u003e\n\u003cdiv class=\"hd-penny-faq-answer\"\u003e🔄 A penny washer (or repair washer) has a much larger outer diameter compared to a standard flat washer of the same bolt size. This extra surface area spreads the clamping load over a wider area, making it perfect for covering enlarged, rusted, or damaged holes, and for soft materials like plastic, wood, or fiberglass, where a small washer would pull through.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hd-penny-faq-item\"\u003e\n\u003cdiv class=\"hd-penny-faq-question\"\u003eCan I use these stainless washers outdoors or in saltwater environments?\u003c\/div\u003e\n\u003cdiv class=\"hd-penny-faq-answer\"\u003e🌊 Yes! A2-70 stainless steel (304 grade) offers excellent corrosion resistance in outdoor, coastal, and freshwater marine environments. While not as salt-resistant as A4 (316) stainless, A2 is perfectly suitable for most outdoor repairs, automotive underbody, and general marine use. Rinse after heavy salt exposure to maximize life.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hd-penny-faq-item\"\u003e\n\u003cdiv class=\"hd-penny-faq-question\"\u003eHow do I choose the right outer diameter for my repair?\u003c\/div\u003e\n\u003cdiv class=\"hd-penny-faq-answer\"\u003e📏 Measure the damaged hole or the area you need to cover. The washer’s OD should be at least 1.5–2x the hole diameter for a secure bridge. For soft materials, go with the largest OD that fits your space. Our options range from 12mm (for M4) up to 50mm (for M12). When in doubt, choose a larger OD for maximum load distribution.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hd-penny-faq-item\"\u003e\n\u003cdiv class=\"hd-penny-faq-question\"\u003eDo you sell mixed packs of different sizes?\u003c\/div\u003e\n\u003cdiv class=\"hd-penny-faq-answer\"\u003e📦 No, we do not sell mixed packs unless specifically requested. Our “Package Included: As per Your Choice” means you order exactly the size (thread diameter), outer diameter, and quantity you need. This keeps your inventory clean and avoids waste. Contact us for custom assortments if required.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hd-penny-faq-item\"\u003e\n\u003cdiv class=\"hd-penny-faq-question\"\u003eAre these washers suitable for use with stainless bolts to prevent galvanic corrosion?\u003c\/div\u003e\n\u003cdiv class=\"hd-penny-faq-answer\"\u003e⚡ Yes. Using A2 stainless washers with A2 stainless bolts (or other compatible metals) avoids galvanic corrosion. They are ideal for matching fastener systems. Avoid pairing with plain steel or aluminum directly unless insulated, but the washer itself will not accelerate corrosion.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hd-penny-divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center; margin-top: 1rem;\" class=\"hd-penny-text-small\"\u003e⚙️ \u003cstrong\u003eHomeDIYer Fastener\u003c\/strong\u003e – Professional-grade stainless hardware for repairs, restoration, and fabrication. Order your exact penny washers today.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"M4 x1x12mm \/ 50","offer_id":52196962468114,"sku":"KAYFST03-1","price":6.45,"currency_code":"USD","in_stock":true},{"title":"M4 x1x 15mm \/ 50","offer_id":52196962500882,"sku":"KAYFST03-2","price":6.6,"currency_code":"USD","in_stock":true},{"title":"M4 x1x 20mm \/ 50","offer_id":52196962533650,"sku":"KAYFST03-3","price":8.94,"currency_code":"USD","in_stock":true},{"title":"M4 x 1x25mm \/ 50","offer_id":52196962566418,"sku":"KAYFST03-4","price":10.29,"currency_code":"USD","in_stock":true},{"title":"M5 x1.2x 15mm \/ 50","offer_id":52196962599186,"sku":"KAYFST03-5","price":6.75,"currency_code":"USD","in_stock":true},{"title":"M5 x1.2x 20mm \/ 50","offer_id":52196962631954,"sku":"KAYFST03-6","price":8.94,"currency_code":"USD","in_stock":true},{"title":"M5 x1.2x25mm \/ 50","offer_id":52196962664722,"sku":"KAYFST03-7","price":10.59,"currency_code":"USD","in_stock":true},{"title":"M5 x1.5x 30mm \/ 50","offer_id":52196962697490,"sku":"KAYFST03-8","price":13.89,"currency_code":"USD","in_stock":true},{"title":"M6 x 1.2x20mm \/ 50","offer_id":52196962730258,"sku":"KAYFST03-9","price":8.34,"currency_code":"USD","in_stock":true},{"title":"M6 x 1.5x25mm \/ 50","offer_id":52196962763026,"sku":"KAYFST03-10","price":9.6,"currency_code":"USD","in_stock":true},{"title":"M6 x 1.5x30mm \/ 50","offer_id":52196962795794,"sku":"KAYFST03-11","price":12.69,"currency_code":"USD","in_stock":true},{"title":"M6 x 2x40mm \/ 30","offer_id":52196962828562,"sku":"KAYFST03-12","price":13.29,"currency_code":"USD","in_stock":true},{"title":"M8 x 1.5x20mm \/ 50","offer_id":52196962861330,"sku":"KAYFST03-13","price":8.19,"currency_code":"USD","in_stock":true},{"title":"M8 x 1.5x 25mm \/ 50","offer_id":52196962894098,"sku":"KAYFST03-14","price":9.09,"currency_code":"USD","in_stock":true},{"title":"M8 x 1.5x 30mm \/ 20","offer_id":52196962926866,"sku":"KAYFST03-15","price":8.88,"currency_code":"USD","in_stock":true},{"title":"M8 x 2x35mm \/ 20","offer_id":52196962959634,"sku":"KAYFST03-16","price":10.68,"currency_code":"USD","in_stock":true},{"title":"M8 x 1.5x40mm \/ 20","offer_id":52196962992402,"sku":"KAYFST03-17","price":11.88,"currency_code":"USD","in_stock":true},{"title":"M10 x 1.5x 25mm \/ 20","offer_id":52196963025170,"sku":"KAYFST03-18","price":7.44,"currency_code":"USD","in_stock":true},{"title":"M10 x 1.5x30mm \/ 20","offer_id":52196963057938,"sku":"KAYFST03-19","price":8.04,"currency_code":"USD","in_stock":true},{"title":"M10 x 1.5x 40mm \/ 20","offer_id":52196963090706,"sku":"KAYFST03-20","price":11.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/03_69daf3e9-0f22-4b32-8d5e-c9f1e5416c16.jpg?v=1776757974","url":"https:\/\/homediyer.com\/products\/a2-stainless-steel-penny-repair-washers-large-od-flat-washers-for-m4-to-m12-bolts","provider":"HomeDIYer","version":"1.0","type":"link"}