{"product_id":"m2-5x20mm-stainless-steel-knurled-thumb-screws-sports-camera","title":"M2.5×20mm Stainless Steel Knurled Thumb Screws for Sports Cameras | Hand Knob Bolts","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eM2.5×20mm Knurled Thumb Screws — Tool-Free Fastening for Sports Cameras \u0026amp; Action Mounts\u003c\/h2\u003e\n\u003cp\u003eIf you've ever fumbled with a tiny hex wrench in the field while trying to mount your action camera, you know how frustrating it can be. These M2.5×20mm knurled thumb screws are built for photographers, videographers, and outdoor enthusiasts who need fast, reliable, tool-free camera mounting — whether on a trail, a boat, or a race track.\u003c\/p\u003e\n\u003cp\u003eEach screw measures M2.5×20mm (approximately 0.098\" diameter × 0.79\" length) and is machined from stainless steel with a fully knurled cylindrical head for a confident finger grip. Available in packs of 1, 5, 10, or 50 pieces to suit single builds or bulk workshop needs.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include securing action camera cold shoe adapters, attaching camera cage accessories, fastening electronics enclosure panels, and assembling RC model components — anywhere an M2.5 threaded hand-tighten bolt is needed for quick-release camera mounting or tool-free panel fastening.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003eℹ️\u003c\/span\u003e \u003cstrong\u003eCompatibility Note:\u003c\/strong\u003e These screws use \u003cstrong\u003eM2.5 metric thread\u003c\/strong\u003e. Please verify your mount or accessory accepts M2.5 threaded fasteners before ordering. Not compatible with standard 1\/4\"–20 UNC tripod threads.\u003c\/div\u003e\n\u003ch2\u003e✅ Key Features of These M2.5 Stainless Steel Knurled Thumb Screws\u003c\/h2\u003e\n\u003cul class=\"hdiy-features\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eM2.5×20mm Precision Sizing\u003c\/strong\u003e — Diameter 2.5mm (≈0.098\") × 20mm length (≈0.79\"), fitting standard M2.5 threaded holes in action camera mounts and small electronics enclosures.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e✋\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eKnurled Head for Tool-Free Tightening\u003c\/strong\u003e — The fully knurled cylindrical head provides a textured grip surface for secure finger-tightening, eliminating the need for a screwdriver or hex key in the field.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🦾\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eStainless Steel Construction\u003c\/strong\u003e — Machined from stainless steel for corrosion resistance in outdoor, humid, and splash-prone environments — suitable for sports camera use in rain or high-humidity conditions.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔄\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eDesigned for Repeated Use\u003c\/strong\u003e — The thread profile maintains integrity through frequent installation and removal cycles, making these ideal for quick-release camera mounting systems and modular rig setups.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eFlexible Pack Quantities\u003c\/strong\u003e — Available in 1, 5, 10, or 50-piece packs, so you can grab a single replacement or stock up for a full workshop or production kit.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🎯\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eVersatile Fit Beyond Cameras\u003c\/strong\u003e — Compatible with any M2.5 threaded application including drone frames, RC models, instrument panels, and DIY electronics enclosures where hand-tighten bolts are preferred.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e📐 Technical Specifications — M2.5 Knurled Thumb Screw\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Size\u003c\/th\u003e\n\u003ctd\u003eM2.5 (Metric)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003ctd\u003e20mm (≈0.79\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Diameter\u003c\/th\u003e\n\u003ctd\u003e2.5mm (≈0.098\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHead Style\u003c\/th\u003e\n\u003ctd\u003eKnurled Cylindrical (Hand Knob)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDrive Style\u003c\/th\u003e\n\u003ctd\u003eFinger \/ Hand-Tighten (No Tool Required)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Pitch\u003c\/th\u003e\n\u003ctd\u003eSee variant options \/ Contact us to confirm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Standard\u003c\/th\u003e\n\u003ctd\u003eISO Metric (M2.5)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack Quantity\u003c\/th\u003e\n\u003ctd\u003e1pcs \/ 5pcs \/ 10pcs \/ 50pcs (select above)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTypical Application\u003c\/th\u003e\n\u003ctd\u003eSports cameras, action cam mounts, electronics enclosures, RC models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-note\"\u003e\n\u003cspan class=\"hdiy-note-icon\"\u003e⚠️\u003c\/span\u003e \u003cstrong\u003eSpec Confirmation:\u003c\/strong\u003e Thread pitch and surface finish details are not listed on the packaging. If your application requires a specific pitch (e.g., M2.5×0.45), please contact us before ordering to confirm.\u003c\/div\u003e\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat length thumb screw do I need for my sports camera mount?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese screws are M2.5×20mm — approximately 0.098\" diameter × 0.79\" in length. For most action camera cold shoe mounts and tripod adapters, 20mm is typically sufficient. If your mount has a thicker base plate, measure the grip depth and add 3–5mm for thread engagement. When in doubt, contact us to confirm compatibility before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow strong are these thumb screws — can they hold a camera securely?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eStainless steel generally provides solid tensile strength for lightweight camera accessories. These are designed for hand-tightened applications where vibration resistance and repeated removal are needed, not for structural load-bearing joints. For heavy rigs or high-vibration environments, we recommend supplementing with a locking mechanism or thread-locking compound.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these thumb screws rust-proof for outdoor or underwater housing use?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eStainless steel offers good corrosion resistance in most outdoor and humid environments and is generally suitable for rain, splash, and high-humidity conditions. For full submersion or saltwater exposure, verify the specific alloy grade and consider additional sealing on the housing itself. Contact us if you need grade confirmation for marine applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat thread standard do these use — are they compatible with standard camera mounts?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese are \u003cstrong\u003eM2.5 metric thread\u003c\/strong\u003e screws, compatible with accessories and mounts that use M2.5 threaded holes — common in action camera accessories, small electronics enclosures, and precision instrument mounts. They are \u003cstrong\u003enot\u003c\/strong\u003e the same as the standard 1\/4\"–20 UNC camera tripod thread. Please verify your mount's thread specification before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow many screws do I need for a typical camera setup?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMost single-mount setups require 1–2 screws. For multi-camera rigs, cage systems, or if you want spares for field use, the 10pcs or 50pcs packs offer better value per unit. We recommend ordering extras for any professional or travel setup where losing a small fastener in the field is a real risk.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need any tools to install these thumb screws?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eNo tools are required. The knurled head is specifically designed for finger-tightening, making these ideal for quick field adjustments and on-the-go camera mounting. The textured grip pattern ensures a secure hold even with wet or gloved hands.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan these be used for applications other than cameras?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. M2.5 knurled thumb screws are commonly used in electronics enclosures, RC models, drones, small instrument panels, and DIY projects where tool-free fastening is needed. As long as the receiving thread is M2.5, these will generally fit a wide range of hand-tighten bolt applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your \u003cstrong\u003esize and quantity\u003c\/strong\u003e above, then add to cart — ships from our US warehouse.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"M2.5×20 \/ 1pcs","offer_id":52292919623954,"sku":"LFLJLWJ01960x1","price":2.14,"currency_code":"USD","in_stock":true},{"title":"M2.5×20 \/ 5pcs","offer_id":52292919656722,"sku":"LFLJLWJ01960x5","price":3.47,"currency_code":"USD","in_stock":true},{"title":"M2.5×20 \/ 10pcs","offer_id":52292919689490,"sku":"LFLJLWJ01960x10","price":5.37,"currency_code":"USD","in_stock":true},{"title":"M2.5×20 \/ 50pcs","offer_id":52292919722258,"sku":"LFLJLWJ01960x50","price":23.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture5of5_27e40fa6-b1b5-4bf6-8d43-5e11508ab2b5.jpg?v=1781165234","url":"https:\/\/homediyer.com\/products\/m2-5x20mm-stainless-steel-knurled-thumb-screws-sports-camera","provider":"HomeDIYer","version":"1.0","type":"link"}