{"product_id":"rubber-round-hole-plugs-9-10-11mm","title":"Round Hole Plugs – Rubber Button Screw Caps \u0026 Blanking Seals (9mm, 10mm, 11mm) Black\/White","description":"\u003cstyle\u003e\n  .hdiy-product-section {\n    max-width: 100%;\n    margin: 0;\n    padding: 0;\n    box-sizing: border-box;\n  }\n  .hdiy-product-section * {\n    box-sizing: border-box;\n  }\n  .hdiy-heading {\n    font-size: 1.75rem;\n    font-weight: 600;\n    margin: 1.5rem 0 0.75rem 0;\n    padding-bottom: 0.5rem;\n    border-bottom: 2px solid #e2e2e2;\n  }\n  .hdiy-subheading {\n    font-size: 1.25rem;\n    font-weight: 600;\n    margin: 1.25rem 0 0.75rem 0;\n  }\n  .hdiy-paragraph {\n    margin: 0 0 1rem 0;\n    line-height: 1.5;\n  }\n  .hdiy-feature-list {\n    list-style: disc;\n    margin: 0 0 1.5rem 1.5rem;\n    padding: 0;\n  }\n  .hdiy-feature-list li {\n    margin-bottom: 0.5rem;\n    line-height: 1.4;\n    padding-left: 0;\n  }\n  .hdiy-table-wrapper {\n    overflow-x: auto;\n    margin: 1rem 0 1.5rem 0;\n  }\n  .hdiy-specs-table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 0.9rem;\n    min-width: 300px;\n  }\n  .hdiy-specs-table th,\n  .hdiy-specs-table td {\n    border: 1px solid #ddd;\n    padding: 0.6rem 0.8rem;\n    text-align: left;\n    vertical-align: top;\n  }\n  .hdiy-specs-table th {\n    background-color: #f5f5f5;\n    font-weight: 600;\n    width: 35%;\n  }\n  .hdiy-faq-item {\n    margin-bottom: 1.25rem;\n  }\n  .hdiy-faq-question {\n    font-weight: 600;\n    margin: 0 0 0.25rem 0;\n    font-size: 1rem;\n  }\n  .hdiy-faq-answer {\n    margin: 0 0 0.5rem 0;\n    line-height: 1.5;\n  }\n  @media (max-width: 480px) {\n    .hdiy-specs-table th,\n    .hdiy-specs-table td {\n      padding: 0.5rem;\n    }\n    .hdiy-feature-list {\n      margin-left: 1.2rem;\n    }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"hdiy-product-section\"\u003e\n\u003c!-- Overview --\u003e\n\u003ch2 class=\"hdiy-heading\"\u003e🔘 Round Hole Plugs – Rubber Button Screw Caps \u0026amp; Blanking Seals (9mm, 10mm, 11mm)\u003c\/h2\u003e\n\u003cp class=\"hdiy-paragraph\"\u003eHave you ever drilled a hole in a metal cabinet, a plastic panel, or a piece of furniture – only to regret the ugly opening or worry about dust getting in? These \u003cstrong\u003erubber round hole plugs\u003c\/strong\u003e are the simple fix. They push into holes from 9mm to 11mm, covering screw holes, knockout openings, pipe ends, or any unfinished cutout. The soft rubber material compresses slightly for a snug fit, and the subtle domed surface looks clean and professional. Available in black or white to blend in or stand out as needed. Great for DIY electronics enclosures, automotive panels, office furniture, or just tidying up a workshop project.\u003c\/p\u003e\n\u003c!-- Specifications Table (moved before Features) --\u003e\n\u003ch2 class=\"hdiy-heading\"\u003e📏 Technical Specifications – Rubber Round Hole Plugs\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-table-wrapper\"\u003e\n\u003ctable class=\"hdiy-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eRound hole plug \/ rubber blanking seal \/ button screw cap cover\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eRubber (flexible, durable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSystem of Measurement\u003c\/th\u003e\n\u003ctd\u003eMetric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShape\u003c\/th\u003e\n\u003ctd\u003eRound with slight micro-arc (domed top)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Sizes (hole diameter)\u003c\/th\u003e\n\u003ctd\u003e9mm, 10mm, 11mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eColors\u003c\/th\u003e\n\u003ctd\u003eBlack, White\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTypical Applications\u003c\/th\u003e\n\u003ctd\u003eCovering screw holes, panel cutouts, pipe ends, door\/window holes, electronics enclosures, automotive interiors, furniture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKey Features\u003c\/th\u003e\n\u003ctd\u003eDustproof, waterproof, easy push‑fit installation, clean aesthetic surface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- Features --\u003e\n\u003ch2 class=\"hdiy-heading\"\u003e✨ Why These Rubber Button Plugs Work So Well\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e🔩 Versatile hole plugging\u003c\/strong\u003e – Use them to fill panel holes, screw holes, round pipe openings, door\/window drill holes, and any unwanted perforation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e🧹 Dustproof \u0026amp; waterproof protection\u003c\/strong\u003e – Seals the opening from dust, moisture, and small debris. Keeps electronics, cabinets, and furniture cleaner inside.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e🔘 Easy snap‑in installation\u003c\/strong\u003e – No tools required. Just press the plug into the hole by hand. The rubber compresses, then expands to lock in place.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e🎨 Clean aesthetic finish\u003c\/strong\u003e – The surface has a slight micro‑curve (subtle dome) that looks neat and professional, much better than a raw hole or tape.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e⚫ Available in black or white\u003c\/strong\u003e – Black is great for dark equipment, automotive, or industrial gear. White blends into white panels, appliances, or furniture.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e📏 Three metric sizes: 9mm, 10mm, 11mm\u003c\/strong\u003e – Covers the most common small to medium hole diameters. Choose the size that matches your opening.\u003c\/p\u003e\n\u003c!-- FAQ --\u003e\n\u003ch2 class=\"hdiy-heading\"\u003e❓ Frequently Asked Questions – Round Hole Plugs\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-faq-item\"\u003e\n\u003cdiv class=\"hdiy-faq-question\"\u003e🔧 How do I know which size plug to order?\u003c\/div\u003e\n\u003cdiv class=\"hdiy-faq-answer\"\u003eMeasure the diameter of the hole you want to plug. Use calipers or a ruler. For a snug fit, the plug diameter should match the hole size (e.g., a 10mm plug for a 10mm hole). The rubber is slightly compressible, so a 10mm plug will fit holes from about 9.5mm to 10.5mm. If you have an odd size, pick the nearest metric size – the rubber can flex a little.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-faq-item\"\u003e\n\u003cdiv class=\"hdiy-faq-question\"\u003e💧 Are these plugs waterproof – can I use them outdoors?\u003c\/div\u003e\n\u003cdiv class=\"hdiy-faq-answer\"\u003eThey are dustproof and water‑resistant, not submersible. For outdoor use (like covering holes in garden equipment, patio furniture, or outdoor enclosures), they will resist rain and splashes. The rubber material holds up to moisture and mild temperature changes. However, they are not designed for constant underwater submersion or extreme pressure. For most outdoor DIY and automotive uses, they work fine.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-faq-item\"\u003e\n\u003cdiv class=\"hdiy-faq-question\"\u003e \u003cstrong\u003e📏 \u003c\/strong\u003eDo I need glue or adhesive to keep them in place?\u003c\/div\u003e\n\u003cdiv class=\"hdiy-faq-answer\"\u003eNo – the friction fit is usually enough. The plug is slightly oversized, so when you push it in, the rubber compresses and then expands against the walls of the hole. For normal vibration (like on a vehicle or appliance door), they stay put. If you’re installing them in a high‑vibration environment (an engine cover or a moving part), a small dot of silicone adhesive can add security, but it’s rarely necessary.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-faq-item\"\u003e\n\u003cdiv class=\"hdiy-faq-question\"\u003e⚫ Can I paint these plugs to match my project color?\u003c\/div\u003e\n\u003cdiv class=\"hdiy-faq-answer\"\u003eYes – rubber can be painted with flexible paints (like vinyl dye or rubber-compatible spray paint). However, the black and white plugs already cover most needs. White plugs can be painted to any color with proper adhesion promoter. If you need a specific color, let us know – we may be able to source custom colors.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-faq-item\"\u003e\n\u003cdiv class=\"hdiy-faq-question\"\u003e🛠️ Will these plugs work on curved surfaces or thin sheet metal?\u003c\/div\u003e\n\u003cdiv class=\"hdiy-faq-answer\"\u003eYes. For thin sheet metal (like car body panels or HVAC ducts), the plug still grips because the rubber pushes outward. The flange is wide enough to cover the hole edge. For curved surfaces, the rubber’s flexibility allows it to conform slightly. As long as the hole is round and the material thickness is not more than about 3–4mm, they work well.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"9mm-Black \/ 1 Pcs","offer_id":52253461315858,"sku":"ZXCXWLXS0301x1","price":1.7,"currency_code":"USD","in_stock":true},{"title":"10mm-Black \/ 1 Pcs","offer_id":52253461348626,"sku":"ZXCXWLXS0302x1","price":1.7,"currency_code":"USD","in_stock":true},{"title":"11mm-Black \/ 1 Pcs","offer_id":52253461381394,"sku":"ZXCXWLXS0303x1","price":1.7,"currency_code":"USD","in_stock":true},{"title":"9mm-White \/ 1 Pcs","offer_id":52253461414162,"sku":"ZXCXWLXS1653x1","price":1.7,"currency_code":"USD","in_stock":true},{"title":"10mm-White \/ 1 Pcs","offer_id":52253461446930,"sku":"ZXCXWLXS1654x1","price":1.7,"currency_code":"USD","in_stock":true},{"title":"11mm-White \/ 1 Pcs","offer_id":52253461479698,"sku":"ZXCXWLXS1655x1","price":1.7,"currency_code":"USD","in_stock":true},{"title":"9mm-Black \/ 5 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