{"product_id":"m10-m12-plastic-black-rosette-thumb-screws-star-knob","title":"M10 \/ M12 Plastic Black Rosette Thumb Screws – 6‑Lobe Star Knob Bolts, Stainless Thread (40‑100mm)","description":"\u003cstyle\u003e\n  \/* 所有样式使用 .hdiy- 前缀，仅作用于本区块，兼容移动端 *\/\n  .hdiy-rosette {\n    max-width: 100%;\n    margin: 0;\n    padding: 0;\n    box-sizing: border-box;\n  }\n  .hdiy-rosette .hdiy-section {\n    margin-bottom: 2rem;\n  }\n  .hdiy-rosette h2, \n  .hdiy-rosette h3 {\n    margin: 0 0 0.75rem 0;\n    font-weight: 600;\n  }\n  .hdiy-rosette .hdiy-feature-list {\n    list-style: none;\n    padding: 0;\n    margin: 0;\n  }\n  .hdiy-rosette .hdiy-feature-list li {\n    padding-left: 1.5rem;\n    position: relative;\n    margin-bottom: 0.75rem;\n    line-height: 1.4;\n  }\n  .hdiy-rosette .hdiy-feature-list li::before {\n    content: \"✓\";\n    position: absolute;\n    left: 0;\n    color: #2a7f2a;\n    font-weight: bold;\n  }\n  .hdiy-rosette .hdiy-specs-wrapper {\n    overflow-x: auto;\n    -webkit-overflow-scrolling: touch;\n  }\n  .hdiy-rosette .hdiy-specs-table {\n    width: 100%;\n    min-width: 500px;\n    border-collapse: collapse;\n    background: #f8f8f8;\n    border-radius: 8px;\n    overflow: hidden;\n  }\n  .hdiy-rosette .hdiy-specs-table th,\n  .hdiy-rosette .hdiy-specs-table td {\n    border: 1px solid #ddd;\n    padding: 10px 12px;\n    text-align: left;\n    vertical-align: top;\n  }\n  .hdiy-rosette .hdiy-specs-table th {\n    background: #eaeaea;\n    font-weight: 600;\n    width: 34%;\n  }\n  .hdiy-rosette .hdiy-faq-item {\n    margin-bottom: 1.25rem;\n    border-bottom: 1px solid #eee;\n    padding-bottom: 0.75rem;\n  }\n  .hdiy-rosette .hdiy-faq-question {\n    font-weight: 700;\n    margin-bottom: 0.4rem;\n    display: flex;\n    align-items: center;\n    gap: 0.5rem;\n  }\n  .hdiy-rosette .hdiy-faq-question::before {\n    content: \"❓\";\n    font-size: 1rem;\n  }\n  .hdiy-rosette .hdiy-faq-answer {\n    margin: 0;\n    padding-left: 1.8rem;\n    line-height: 1.45;\n    color: #2c2c2c;\n  }\n  @media (max-width: 768px) {\n    .hdiy-rosette .hdiy-specs-table th,\n    .hdiy-rosette .hdiy-specs-table td {\n      padding: 8px 10px;\n    }\n    .hdiy-rosette .hdiy-faq-question {\n      font-size: 0.95rem;\n    }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"hdiy-rosette\"\u003e\n  \n  \u003c!-- 产品概述 --\u003e\n  \u003cdiv class=\"hdiy-section\"\u003e\n    \u003ch2\u003e⭐ M10 \/ M12 Plastic Black Rosette Thumb Screws – 6‑Lobe Star Knob Bolts with Stainless Thread\u003c\/h2\u003e\n    \u003cp\u003eIf you frequently adjust machinery, jigs, or heavy equipment, you need a hand knob that gives you serious leverage without slipping. These black rosette thumb screws feature a 6‑petal star‑shaped plastic head that fits your hand naturally – like a small steering wheel. The threaded rod is stainless steel, so you get strong, rust‑proof threads. Available in M10 and M12 diameters, with thread lengths of 40mm, 60mm, or 100mm. Perfect for industrial equipment, woodworking clamps, camera rigs, or any place where you need to tighten or loosen by hand with high torque. The black plastic head looks clean and professional, and the stainless steel won’t corrode.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- 产品特点（SEO友好） --\u003e\n  \u003cdiv class=\"hdiy-section\"\u003e\n    \u003ch3\u003e✨ Why Choose These Star Knob Thumb Screws for Your Shop\u003c\/h3\u003e\n    \u003cul class=\"hdiy-feature-list\"\u003e\n      \u003cli\u003e\n\u003cstrong\u003e6‑lobe rosette (star) head\u003c\/strong\u003e – The petal shape gives you excellent mechanical advantage. Much easier to hand‑tighten than a round knurled knob.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eDurable hybrid construction\u003c\/strong\u003e – Black plastic head (impact‑resistant, comfortable grip) + stainless steel threaded rod (corrosion‑resistant, strong).\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eM10 and M12 metric threads\u003c\/strong\u003e – Standard sizes for many industrial machines, workholding fixtures, and heavy‑duty DIY projects.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eThree thread lengths: 40mm, 60mm, 100mm\u003c\/strong\u003e – Short enough for thin panels, long enough for thick mounting blocks or through‑hole applications.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eAll‑black aesthetic\u003c\/strong\u003e – The black plastic head and natural stainless steel shaft create a clean, industrial look.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eTool‑free operation, high torque\u003c\/strong\u003e – Tighten or loosen by hand with much more force than a standard thumb screw – no wrench needed.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- 规格参数表格（可横向滚动） --\u003e\n  \u003cdiv class=\"hdiy-section\"\u003e\n    \u003ch3\u003e📏 Technical Specifications – Plastic Rosette Thumb Screws (M10\/M12)\u003c\/h3\u003e\n    \u003cdiv class=\"hdiy-specs-wrapper\"\u003e\n      \u003ctable class=\"hdiy-specs-table\"\u003e\n        \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eBRT Fasteners\n        \u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003eThumb Screws \/ Rosette Star Knob Bolts\n        \u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eHead Shape\u003c\/th\u003e\n\u003ctd\u003e6‑petal rosette (star knob)\n        \u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eHead Material\u003c\/th\u003e\n\u003ctd\u003eBlack plastic (impact‑resistant, UV‑stable)\n        \u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eThread Material\u003c\/th\u003e\n\u003ctd\u003eStainless steel (grade not specified, but corrosion‑resistant)\n        \u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eThread Diameters\u003c\/th\u003e\n\u003ctd\u003eM10 (10mm) and M12 (12mm)\n        \u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eThread Lengths Available\u003c\/th\u003e\n\u003ctd\u003e40mm, 60mm, 100mm (measured under the head)\n        \u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eColor\u003c\/th\u003e\n\u003ctd\u003eBlack head + natural stainless steel shaft\n        \u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eSystem of Measurement\u003c\/th\u003e\n\u003ctd\u003eMetric\n        \u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eIndustrial machinery, workholding, clamps, camera rigs, heavy DIY\n        \u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- 常见问题 FAQ（全部展开，无折叠） --\u003e\n  \u003cdiv class=\"hdiy-section\"\u003e\n    \u003ch3\u003e❔ Frequently Asked Questions\u003c\/h3\u003e\n    \n    \u003cdiv class=\"hdiy-faq-item\"\u003e\n      \u003cdiv class=\"hdiy-faq-question\"\u003eHow much torque can I apply with the star knob head?\u003c\/div\u003e\n      \u003cp class=\"hdiy-faq-answer\"\u003eThe 6‑petal design gives you excellent hand leverage – you can achieve significantly higher clamping force than with a smooth or knurled round knob. However, the plastic head is not designed for wrench or pliers use. For most machinery and fixture applications, hand torque is more than sufficient.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"hdiy-faq-item\"\u003e\n      \u003cdiv class=\"hdiy-faq-question\"\u003eWill the plastic head crack under heavy use?\u003c\/div\u003e\n      \u003cp class=\"hdiy-faq-answer\"\u003eThe black plastic used is impact‑resistant and tough. Under normal hand tightening, it will last for years. Avoid striking the head with hammers or using cheater bars. For extreme high‑torque applications, consider all‑metal star knobs.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"hdiy-faq-item\"\u003e\n      \u003cdiv class=\"hdiy-faq-question\"\u003eAre the threads fully stainless steel? Will they rust?\u003c\/div\u003e\n      \u003cp class=\"hdiy-faq-answer\"\u003eYes, the threaded rod is stainless steel, which offers excellent corrosion resistance for indoor and outdoor use (humidity, rain). They will not rust like regular steel. For continuous saltwater exposure, we recommend upgrading to marine‑grade 316 stainless – contact us for custom orders.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"hdiy-faq-item\"\u003e\n      \u003cdiv class=\"hdiy-faq-question\"\u003eWhat length should I choose for my project?\u003c\/div\u003e\n      \u003cp class=\"hdiy-faq-answer\"\u003eMeasure the total thickness of the material you’re clamping. Pick a thread length that’s at least 5‑10mm longer than that thickness to fully engage a nut or have enough thread bite into a tapped hole. For example: a 30mm thick panel → choose 40mm length. We offer 40mm, 60mm, and 100mm – if you need a different size, contact us.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"hdiy-faq-item\"\u003e\n      \u003cdiv class=\"hdiy-faq-question\"\u003eDo these come with matching nuts?\u003c\/div\u003e\n      \u003cp class=\"hdiy-faq-answer\"\u003eThis listing includes the thumb screw only. However, we sell matching stainless steel M10 and M12 nuts separately. Contact customer service to add them to your order.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"hdiy-faq-item\"\u003e\n      \u003cdiv class=\"hdiy-faq-question\"\u003eCan I use these on a camera tripod or heavy rig?\u003c\/div\u003e\n      \u003cp class=\"hdiy-faq-answer\"\u003eAbsolutely. Many professional camera rigs and tripod leveling bases use M10 or M12 threaded holes. The star knob gives you quick, tool‑free adjustment – perfect for video rigs, C‑stands, and lighting equipment.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"M12*40【48# Black 6 Petals】 \/ 1","offer_id":52292683006226,"sku":"PHJ137-0","price":5.78,"currency_code":"USD","in_stock":true},{"title":"M12*40【48# Black 6 Petals】 \/ 3","offer_id":52292683038994,"sku":"PHJ137-1","price":14.89,"currency_code":"USD","in_stock":true},{"title":"M12*40【48# Black 6 Petals】 \/ 5","offer_id":52292683071762,"sku":"PHJ137-2","price":24.06,"currency_code":"USD","in_stock":true},{"title":"M12*40【48# Black 6 Petals】 \/ 10","offer_id":52292683104530,"sku":"PHJ137-3","price":46.85,"currency_code":"USD","in_stock":true},{"title":"M12*60【48# Black 6 Petals】 \/ 1","offer_id":52292683137298,"sku":"PHJ137-4","price":6.65,"currency_code":"USD","in_stock":true},{"title":"M12*60【48# Black 6 Petals】 \/ 3","offer_id":52292683170066,"sku":"PHJ137-5","price":17.48,"currency_code":"USD","in_stock":true},{"title":"M12*60【48# Black 6 Petals】 \/ 5","offer_id":52292683202834,"sku":"PHJ137-6","price":28.27,"currency_code":"USD","in_stock":true},{"title":"M12*60【48# Black 6 Petals】 \/ 10","offer_id":52292683235602,"sku":"PHJ137-7","price":55.34,"currency_code":"USD","in_stock":true},{"title":"M10*100【 Black 6 Petals】 \/ 1","offer_id":52292683268370,"sku":"PHJ137-8","price":7.33,"currency_code":"USD","in_stock":true},{"title":"M10*100【 Black 6 Petals】 \/ 3","offer_id":52292683301138,"sku":"PHJ137-9","price":19.57,"currency_code":"USD","in_stock":true},{"title":"M10*100【 Black 6 Petals】 \/ 5","offer_id":52292683333906,"sku":"PHJ137-10","price":31.76,"currency_code":"USD","in_stock":true},{"title":"M10*100【 Black 6 Petals】 \/ 10","offer_id":52292683366674,"sku":"PHJ137-11","price":62.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture1of6_634915a4-e513-4679-b3dc-0e05bfe8c9db.jpg?v=1780502227","url":"https:\/\/homediyer.com\/de\/products\/m10-m12-plastic-black-rosette-thumb-screws-star-knob","provider":"HomeDIYer","version":"1.0","type":"link"}