{"product_id":"m2-m5-flared-shoulder-thumb-screws-stainless","title":"M2⁄M2.5 Thumb Screws Flared Shoulder Knurled Head Knob Bolts Stainless Steel","description":"\u003cstyle\u003e\n  \/* 统一前缀 hdiy-，避免样式冲突 *\/\n  .hdiy-product-wrap {\n    margin: 0;\n    padding: 0;\n  }\n  .hdiy-product-wrap h2,\n  .hdiy-product-wrap h3 {\n    margin-top: 1.5em;\n    margin-bottom: 0.5em;\n    font-weight: 600;\n  }\n  .hdiy-product-wrap p {\n    margin-bottom: 1em;\n    line-height: 1.5;\n  }\n  .hdiy-features-list {\n    list-style: none;\n    padding-left: 0;\n  }\n  .hdiy-features-list li {\n    margin-bottom: 0.75em;\n    padding-left: 1.5em;\n    position: relative;\n    line-height: 1.4;\n  }\n  .hdiy-features-list li::before {\n    content: \" \";\n    position: absolute;\n    left: 0;\n    top: 0;\n  }\n  .hdiy-table-wrapper {\n    overflow-x: auto;\n    margin: 1.2em 0;\n  }\n  .hdiy-specs-table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 0.95rem;\n    background: #fff;\n    min-width: 300px;\n  }\n  .hdiy-specs-table th,\n  .hdiy-specs-table td {\n    border: 1px solid #ddd;\n    padding: 10px 12px;\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    border-bottom: 1px solid #eee;\n    padding-bottom: 0.75rem;\n  }\n  .hdiy-faq-question {\n    font-weight: 700;\n    margin-bottom: 0.35rem;\n    font-size: 1rem;\n  }\n  .hdiy-faq-answer {\n    margin-top: 0;\n    line-height: 1.45;\n    color: #2c2c2c;\n  }\n  @media (max-width: 640px) {\n    .hdiy-specs-table th,\n    .hdiy-specs-table td {\n      padding: 8px 10px;\n    }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"hdiy-product-wrap\"\u003e\n\u003c!-- Product Overview --\u003e\n\u003ch2\u003e🔩 Product Overview: M2\/M2.5 Thumb Screws – Flared Shoulder, Knurled Head, Stainless Steel\u003c\/h2\u003e\n\u003cp\u003eFor small electronics, camera gear, or 3D printers where you need a tool‑less fastener with a secure grip, these M2 and M2.5 stainless steel thumb screws with a flared shoulder and knurled head are a perfect solution. The knurled barrel head provides excellent finger grip for hand tightening, while the flared shoulder acts as a built‑in washer, distributing clamping force and preventing the screw from pulling through soft materials like plastic or thin sheet metal. Made from corrosion‑resistant stainless steel, they are strong, non‑magnetic, and durable. Available in M2 and M2.5 thread diameters, with thread lengths from 3mm to 12mm (measured under the head). Ideal for panel mounting, electronic enclosures, camera rigs, and any application where you need to frequently adjust or remove fasteners by hand.\u003c\/p\u003e\n\u003c!-- Key Features List --\u003e\n\u003ch2\u003e✨ Why These Mini Thumb Screws Are a Handy Addition to Your Kit\u003c\/h2\u003e\n\u003cul class=\"hdiy-features-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eKnurled head for tool‑less operation\u003c\/strong\u003e – The diamond knurl pattern gives you a secure, slip‑resistant grip for hand tightening and loosening – no screwdriver needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlared shoulder (built‑in washer)\u003c\/strong\u003e – The wider shoulder acts as an integrated washer, distributing clamping force and protecting soft surfaces from damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless steel construction\u003c\/strong\u003e – Corrosion‑resistant, non‑magnetic, and strong. Suitable for indoor and light outdoor use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTiny metric sizes M2 and M2.5\u003c\/strong\u003e – Perfect for small electronics, camera accessories, 3D printer components, and miniature panels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully threaded, coarse metric pitch\u003c\/strong\u003e – Standard threads: M2x0.4, M2.5x0.45. Threads run the entire length for maximum grip.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread lengths from 3mm to 12mm (under head)\u003c\/strong\u003e – Choose from 3, 4, 5, 6, 8, 10, 12mm. Ideal for thin panels and compact assemblies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide applications\u003c\/strong\u003e – Electronics enclosures, camera rigs, 3D printer bed leveling knobs, RC car body mounts, instrument panels, and DIY projects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Specifications Table --\u003e\n\u003ch2\u003e📏 Technical Specifications – Flared Shoulder Knurled Thumb Screws (M2\/M2.5)\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-table-wrapper\"\u003e\n\u003ctable class=\"hdiy-specs-table\" style=\"width: 100.083%; height: 276.619px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 21.2784px;\"\u003e\n\u003cth style=\"width: 34.802%; height: 21.2784px;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"width: 34.802%; height: 21.2784px;\"\u003eM2\u003c\/th\u003e\n\u003cth style=\"width: 30.3796%; height: 21.2784px;\"\u003eM2.5\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 21.2784px;\"\u003e\n\u003cth style=\"width: 34.802%; height: 21.2784px;\"\u003eThread Diameter (d)\u003c\/th\u003e\n\u003ctd style=\"width: 34.802%; height: 21.2784px;\"\u003e2mm\u003c\/td\u003e\n\u003ctd style=\"width: 30.3796%; height: 21.2784px;\"\u003e2.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 21.2784px;\"\u003e\n\u003cth style=\"width: 34.802%; height: 21.2784px;\"\u003eThread Pitch (p)\u003c\/th\u003e\n\u003ctd style=\"width: 34.802%; height: 21.2784px;\"\u003e0.4mm\u003c\/td\u003e\n\u003ctd style=\"width: 30.3796%; height: 21.2784px;\"\u003e0.45mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 42.5568px;\"\u003e\n\u003cth style=\"width: 34.802%; height: 42.5568px;\"\u003eThread Length Range (under head)\u003c\/th\u003e\n\u003ctd style=\"width: 34.802%; height: 42.5568px;\"\u003e3,4,5,6,8,10,12mm\u003c\/td\u003e\n\u003ctd style=\"width: 30.3796%; height: 42.5568px;\"\u003e3,4,5,6,8,10,12mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 21.2784px;\"\u003e\n\u003cth style=\"width: 34.802%; height: 21.2784px;\"\u003eHead Style\u003c\/th\u003e\n\u003ctd colspan=\"2\" style=\"width: 65.1816%; height: 21.2784px;\"\u003eKnurled cylindrical barrel head\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 21.2784px;\"\u003e\n\u003cth style=\"width: 34.802%; height: 21.2784px;\"\u003eShoulder Type\u003c\/th\u003e\n\u003ctd colspan=\"2\" style=\"width: 65.1816%; height: 21.2784px;\"\u003eFlared shoulder (integrated washer)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 21.2784px;\"\u003e\n\u003cth style=\"width: 34.802%; height: 21.2784px;\"\u003eDrive Style\u003c\/th\u003e\n\u003ctd colspan=\"2\" style=\"width: 65.1816%; height: 21.2784px;\"\u003eHand grip (tool‑less)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 21.2784px;\"\u003e\n\u003cth style=\"width: 34.802%; height: 21.2784px;\"\u003eMaterial\u003c\/th\u003e\n\u003ctd colspan=\"2\" style=\"width: 65.1816%; height: 21.2784px;\"\u003eStainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 34.802%;\"\u003eThread Type\u003c\/th\u003e\n\u003ctd colspan=\"2\" style=\"width: 65.1816%;\"\u003eFully threaded, coarse metric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 42.5568px;\"\u003e\n\u003cth style=\"width: 34.802%; height: 42.5568px;\"\u003eLength Measurement\u003c\/th\u003e\n\u003ctd colspan=\"2\" style=\"width: 65.1816%; height: 42.5568px;\"\u003eUnder head – from underside of shoulder to tip (head not included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- Frequently Asked Questions --\u003e\n\u003ch2\u003e❓ FAQs – Mini Flared Shoulder Thumb Screws\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-faq-item\"\u003e\n\u003cdiv class=\"hdiy-faq-question\"\u003e🔸 What is the purpose of the flared shoulder?\u003c\/div\u003e\n\u003cdiv class=\"hdiy-faq-answer\"\u003eThe flared shoulder acts as an integrated flat washer. It spreads the clamping force over a larger area, preventing the screw head from pulling through soft materials like plastic, thin sheet metal, or wood. It also protects the surface from marring and eliminates the need for a separate washer.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-faq-item\"\u003e\n\u003cdiv class=\"hdiy-faq-question\"\u003e🔸 How is the thread length measured for these thumb screws?\u003c\/div\u003e\n\u003cdiv class=\"hdiy-faq-answer\"\u003eThread length is measured from the underside of the flared shoulder to the tip of the thread. The knurled head and shoulder are not included. For example, an M2.5 x 10mm screw has a 10mm long threaded shank.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-faq-item\"\u003e\n\u003cdiv class=\"hdiy-faq-question\"\u003e🔸 Are these screws fully threaded? What are the thread pitches?\u003c\/div\u003e\n\u003cdiv class=\"hdiy-faq-answer\"\u003eYes – they are fully threaded from under the shoulder to the tip. M2 has 0.4mm pitch, M2.5 has 0.45mm pitch – standard metric coarse.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-faq-item\"\u003e\n\u003cdiv class=\"hdiy-faq-question\"\u003e🔸 Will stainless steel rust?\u003c\/div\u003e\n\u003cdiv class=\"hdiy-faq-answer\"\u003eStainless steel is highly resistant to corrosion and will not rust under normal indoor and light outdoor use. For continuous saltwater or heavy chemical exposure, a higher grade (e.g., 316) would be better, but for electronics and general hardware, this is excellent.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-faq-item\"\u003e\n\u003cdiv class=\"hdiy-faq-question\"\u003e🔸 Can I use these screws with nuts, or are they for tapped holes only?\u003c\/div\u003e\n\u003cdiv class=\"hdiy-faq-answer\"\u003eThese are standard machine screws – they work with matching metric nuts (M2 or M2.5) or in pre‑tapped holes. The flared shoulder replaces a washer on the screw side. For through‑hole applications, use a nut on the back side.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-faq-item\"\u003e\n\u003cdiv class=\"hdiy-faq-question\"\u003e🔸 What lengths are available for M2 and M2.5?\u003c\/div\u003e\n\u003cdiv class=\"hdiy-faq-answer\"\u003eWe offer thread lengths of 3, 4, 5, 6, 8, 10, and 12mm for both M2 and M2.5. Please select your desired length from the dropdown options. If you need a specific length not listed, contact us.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"M2X3 \/ 1","offer_id":52292338778386,"sku":"PHJ199-0","price":2.5,"currency_code":"USD","in_stock":true},{"title":"M2X3 \/ 5","offer_id":52292338811154,"sku":"PHJ199-1","price":2.9,"currency_code":"USD","in_stock":true},{"title":"M2X3 \/ 10","offer_id":52292338843922,"sku":"PHJ199-2","price":2.57,"currency_code":"USD","in_stock":true},{"title":"M2X3 \/ 30","offer_id":52292338876690,"sku":"PHJ199-3","price":5.41,"currency_code":"USD","in_stock":true},{"title":"M2X4 \/ 1","offer_id":52292338909458,"sku":"PHJ199-4","price":1.88,"currency_code":"USD","in_stock":true},{"title":"M2X4 \/ 5","offer_id":52292338942226,"sku":"PHJ199-5","price":2.94,"currency_code":"USD","in_stock":true},{"title":"M2X4 \/ 10","offer_id":52292338974994,"sku":"PHJ199-6","price":3.5,"currency_code":"USD","in_stock":true},{"title":"M2X4 \/ 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