{"product_id":"m6-yellow-flower-thumb-screws-six-petal-knob-bolts","title":"25# Six-petals Flower M6 Yellow Thumb Screws Hand Grip Knob Bolts Thumbscrew","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eM6 Yellow Six-Petal Flower Thumb Screws — Tool-Free Fastening for Makers \u0026amp; DIY Builders\u003c\/h2\u003e\n\u003cp\u003eWhen you're mid-build and need to make quick panel adjustments without reaching for a wrench, a poorly designed knob bolt slips, strips, or simply doesn't give you enough grip. These M6 yellow six-petal flower thumb screws are built for makers, fabricators, and workshop enthusiasts who need reliable hand-tightened fastening on enclosures, jigs, fixtures, and machine guards.\u003c\/p\u003e\n\u003cp\u003eEach thumb screw features a 25mm (approx. 0.98 in) six-petal flower head in high-visibility yellow, paired with a fully threaded M6 steel shank. Thread lengths range from 10mm to 30mm (approx. 0.39–1.18 in), covering the most common panel and bracket thicknesses. The six-lobe petal geometry distributes finger pressure evenly across the grip surface, reducing fatigue during repeated adjustments.\u003c\/p\u003e\n\u003cp\u003eTypical applications include 3D printer bed leveling knobs, CNC router dust-shoe clamps, electrical enclosure access panels, and woodworking jig fence locks — anywhere tool-free M6 thumb screw fastening is needed for frequent removal and reinstallation.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e🔩\u003c\/span\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Standard M6 metric thread. Fits M6 threaded inserts, T-nuts, and tapped holes. Verify thread length against your panel stack-up before ordering.\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These M6 Flower Thumb Screws\u003c\/h2\u003e\n\u003cul class=\"hdiy-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e🌼 Six-Petal Grip Head\u003c\/strong\u003e\u003cbr\u003eThe 25mm flower-profile head provides six distinct contact lobes, giving fingers a secure purchase even with light gloves or damp hands.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e📏 Six Thread Lengths Available\u003c\/strong\u003e\u003cbr\u003eChoose from M6×10, ×12, ×16, ×20, ×25, or ×30mm to match your exact panel thickness — no spacers or washers required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e🟡 High-Visibility Yellow Finish\u003c\/strong\u003e\u003cbr\u003eThe bright yellow color makes these knobs easy to locate on dark machine frames and helps distinguish adjustment points from structural fasteners.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e🔄 Tool-Free Installation \u0026amp; Removal\u003c\/strong\u003e\u003cbr\u003eThe wide-diameter head generates enough torque by hand for typical clamping loads, eliminating the need for a screwdriver or wrench in routine adjustments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e⚙️ Fully Threaded Shank\u003c\/strong\u003e\u003cbr\u003eThe M6 shank is threaded along its full usable length, allowing engagement depth to be adjusted by varying the nut or insert position.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e📦 Flexible Pack Sizes\u003c\/strong\u003e\u003cbr\u003eAvailable in 1, 2, 5, or 10-piece packs — order a single piece for a replacement or a 10-pack for a full machine build.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — M6 Flower Thumb Screws\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eHead Style\u003c\/th\u003e\n\u003ctd\u003eSix-petal flower knob\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHead Diameter\u003c\/th\u003e\n\u003ctd\u003e25mm (approx. 0.98 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Size\u003c\/th\u003e\n\u003ctd\u003eM6 (metric coarse)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Pitch\u003c\/th\u003e\n\u003ctd\u003e1.0mm (standard M6 coarse pitch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Thread Lengths\u003c\/th\u003e\n\u003ctd\u003e10mm, 12mm, 16mm, 20mm, 25mm, 30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHead Color\u003c\/th\u003e\n\u003ctd\u003eYellow\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDrive Style\u003c\/th\u003e\n\u003ctd\u003eHand-tightened (no tool required)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Type\u003c\/th\u003e\n\u003ctd\u003eFully threaded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack Sizes\u003c\/th\u003e\n\u003ctd\u003e1, 2, 5, or 10 pieces (see variant options)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight (per piece)\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCondition\u003c\/th\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat thread size and pitch do these thumb screws use?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThese thumb screws use a standard M6 metric coarse thread with a 1.0mm pitch. They are compatible with any M6-tapped hole, M6 T-nut, or M6 threaded insert that accepts a standard coarse-pitch fastener.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I choose the right thread length for my application?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eMeasure the total thickness of the panels or material the screw must pass through, then add 3–5mm for full thread engagement in the nut or insert. For example, a 10mm panel with a standard M6 nut typically works well with the M6×16 or M6×20 option. If in doubt, size up — a longer shank can always be used with a spacer or deeper insert.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan these be used outdoors or in humid environments?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThese thumb screws are intended for indoor workshop and light-industrial use. For outdoor or high-humidity environments, consider applying a thin coat of anti-corrosion spray to the shank, or contact us to confirm suitability for your specific conditions.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these compatible with 3D printer bed leveling systems?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. M6 flower thumb screws are widely used for bed leveling on FDM 3D printers that use M6 threaded rods or M6 T-nuts in the bed carriage. The 25mm head diameter provides comfortable finger adjustment during repeated leveling cycles. Verify your printer's thread specification before ordering.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the maximum recommended hand-tightening torque?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eFor a 25mm-diameter knob head, typical hand-tightening generates approximately 1–3 N·m of torque depending on grip force. These screws are designed for clamping and positioning loads, not structural tension. Do not use them as a substitute for hex-head bolts in load-bearing joints.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhy buy a multi-piece pack instead of individual screws?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eMulti-piece packs (2, 5, or 10 pieces) are cost-effective when you need matching knobs across a machine build — for example, four bed-leveling points on a 3D printer or six access-panel fasteners on an enclosure. A single-piece pack is ideal for a direct replacement when one knob is lost or damaged.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use these with a standard M6 hex nut or flange nut?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. The M6 shank is fully threaded and accepts any standard M6 nut — hex, flange, nylon-insert lock nut, or wing nut. Pair with a flange nut for a wider bearing surface on softer materials like plywood or acrylic.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-cta\"\u003e\n🛒 Select your Thread Dia * Length and Packing quantity above, then add to cart.\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What thread size and pitch do these thumb screws use?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"These thumb screws use a standard M6 metric coarse thread with a 1.0mm pitch. They are compatible with any M6-tapped hole, M6 T-nut, or M6 threaded insert that accepts a standard coarse-pitch fastener.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I choose the right thread length for my application?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Measure the total thickness of the panels or material the screw must pass through, then add 3–5mm for full thread engagement in the nut or insert. If in doubt, size up — a longer shank can always be used with a spacer or deeper insert.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can these be used outdoors or in humid environments?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"These thumb screws are intended for indoor workshop and light-industrial use. For outdoor or high-humidity environments, consider applying a thin coat of anti-corrosion spray to the shank, or contact us to confirm suitability.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are these compatible with 3D printer bed leveling systems?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. M6 flower thumb screws are widely used for bed leveling on FDM 3D printers that use M6 threaded rods or M6 T-nuts in the bed carriage. Verify your printer's thread specification before ordering.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the maximum recommended hand-tightening torque?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"For a 25mm-diameter knob head, typical hand-tightening generates approximately 1–3 N·m of torque depending on grip force. These screws are designed for clamping and positioning loads, not structural tension.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Why buy a multi-piece pack instead of individual screws?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Multi-piece packs are cost-effective when you need matching knobs across a machine build. A single-piece pack is ideal for a direct replacement when one knob is lost or damaged.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I use these with a standard M6 hex nut or flange nut?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. The M6 shank is fully threaded and accepts any standard M6 nut — hex, flange, nylon-insert lock nut, or wing nut. Pair with a flange nut for a wider bearing surface on softer materials like plywood or acrylic.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"HomeDIYer","offers":[{"title":"25# ⁄ 25mm \/ M6×10 \/ 1pcs","offer_id":52300443779346,"sku":"LFL17903x1","price":1.7,"currency_code":"USD","in_stock":false},{"title":"25# ⁄ 25mm \/ M6×10 \/ 2pcs","offer_id":52300443812114,"sku":"LFL17903x2","price":1.97,"currency_code":"USD","in_stock":false},{"title":"25# ⁄ 25mm \/ M6×10 \/ 5pcs","offer_id":52300443844882,"sku":"LFL17903x5","price":3.74,"currency_code":"USD","in_stock":false},{"title":"25# ⁄ 25mm \/ M6×10 \/ 10pcs","offer_id":52300443877650,"sku":"LFL17903x10","price":6.73,"currency_code":"USD","in_stock":false},{"title":"25# ⁄ 25mm \/ M6×12 \/ 1pcs","offer_id":52300443910418,"sku":"LFL17904x1","price":1.7,"currency_code":"USD","in_stock":false},{"title":"25# ⁄ 25mm \/ M6×12 \/ 2pcs","offer_id":52300443943186,"sku":"LFL17904x2","price":1.97,"currency_code":"USD","in_stock":false},{"title":"25# ⁄ 25mm \/ M6×12 \/ 5pcs","offer_id":52300443975954,"sku":"LFL17904x5","price":3.79,"currency_code":"USD","in_stock":false},{"title":"25# ⁄ 25mm \/ M6×12 \/ 10pcs","offer_id":52300444008722,"sku":"LFL17904x10","price":6.87,"currency_code":"USD","in_stock":false},{"title":"25# ⁄ 25mm \/ M6×16 \/ 1pcs","offer_id":52300444041490,"sku":"LFL17905x1","price":1.7,"currency_code":"USD","in_stock":false},{"title":"25# ⁄ 25mm \/ M6×16 \/ 2pcs","offer_id":52300444074258,"sku":"LFL17905x2","price":2.03,"currency_code":"USD","in_stock":false},{"title":"25# ⁄ 25mm \/ M6×16 \/ 5pcs","offer_id":52300444107026,"sku":"LFL17905x5","price":3.93,"currency_code":"USD","in_stock":false},{"title":"25# ⁄ 25mm \/ M6×16 \/ 10pcs","offer_id":52300444139794,"sku":"LFL17905x10","price":7.06,"currency_code":"USD","in_stock":false},{"title":"25# ⁄ 25mm \/ M6×20 \/ 1pcs","offer_id":52300444172562,"sku":"LFL17906x1","price":1.7,"currency_code":"USD","in_stock":false},{"title":"25# ⁄ 25mm \/ M6×20 \/ 2pcs","offer_id":52300444205330,"sku":"LFL17906x2","price":2.11,"currency_code":"USD","in_stock":false},{"title":"25# ⁄ 25mm \/ M6×20 \/ 5pcs","offer_id":52300444238098,"sku":"LFL17906x5","price":4.07,"currency_code":"USD","in_stock":false},{"title":"25# ⁄ 25mm \/ M6×20 \/ 10pcs","offer_id":52300444270866,"sku":"LFL17906x10","price":7.41,"currency_code":"USD","in_stock":false},{"title":"25# ⁄ 25mm \/ M6×25 \/ 1pcs","offer_id":52300444303634,"sku":"LFL17907x1","price":1.7,"currency_code":"USD","in_stock":false},{"title":"25# ⁄ 25mm \/ M6×25 \/ 2pcs","offer_id":52300444336402,"sku":"LFL17907x2","price":2.16,"currency_code":"USD","in_stock":false},{"title":"25# ⁄ 25mm \/ M6×25 \/ 5pcs","offer_id":52300444369170,"sku":"LFL17907x5","price":4.2,"currency_code":"USD","in_stock":false},{"title":"25# ⁄ 25mm \/ M6×25 \/ 10pcs","offer_id":52300444401938,"sku":"LFL17907x10","price":7.74,"currency_code":"USD","in_stock":false},{"title":"25# ⁄ 25mm \/ M6×30 \/ 1pcs","offer_id":52300444434706,"sku":"LFL17908x1","price":1.7,"currency_code":"USD","in_stock":false},{"title":"25# ⁄ 25mm \/ M6×30 \/ 2pcs","offer_id":52300444467474,"sku":"LFL17908x2","price":2.24,"currency_code":"USD","in_stock":false},{"title":"25# ⁄ 25mm \/ M6×30 \/ 5pcs","offer_id":52300444500242,"sku":"LFL17908x5","price":4.47,"currency_code":"USD","in_stock":false},{"title":"25# ⁄ 25mm \/ M6×30 \/ 10pcs","offer_id":52300444533010,"sku":"LFL17908x10","price":8.23,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture1of6_f638ba50-31f3-4c00-8098-2b0fdc134209.jpg?v=1781883888","url":"https:\/\/homediyer.com\/products\/m6-yellow-flower-thumb-screws-six-petal-knob-bolts","provider":"HomeDIYer","version":"1.0","type":"link"}