{"product_id":"m6-thumb-screws-plastic-five-star-knob-bolts-black","title":"Thumb Screws M6 Hand Knob Bolts Plastic Five-Star Head Black Length 15-70mm","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eM6 Thumb Screws — Tool-Free Plastic Five-Star Knob Bolts for Panels \u0026amp; Enclosures\u003c\/h2\u003e\n\u003cp\u003eWhen you need to open, adjust, or secure a panel repeatedly without reaching for a screwdriver, standard hex bolts become a daily frustration. These M6 plastic five-star thumb screws are designed for makers, workshop builders, and equipment technicians who need fast, hand-tightened fastening on access covers, machine guards, junction boxes, and DIY enclosures.\u003c\/p\u003e\n\u003cp\u003eEach thumb screw features a five-star (star-knob) plastic head in black with a steel mandrel insert for thread integrity. The M6 metric thread runs through lengths ranging from 15 mm (~0.59 in) to 70 mm (~2.76 in), giving you the reach needed for thin sheet panels up to thicker structural assemblies. Pack quantities of 1, 2, 5, and 10 pieces let you order exactly what your project requires.\u003c\/p\u003e\n\u003cp\u003eTypical applications include 3D printer frame assemblies requiring frequent belt-tension access, electrical enclosure lids on control panels, CNC router dust-shoe attachments, and rack-mount equipment covers — anywhere a tool-free M6 thumb screw speeds up your workflow.\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 M6 metric thread (1.0 mm pitch standard). Fits any M6-tapped hole or M6 hex nut. Verify thread depth against your chosen length before ordering.\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These M6 Plastic Five-Star Thumb Screws\u003c\/h2\u003e\n\u003cul class=\"hdiy-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⭐\u003c\/span\u003e \u003cstrong\u003eFive-Star Knob Head\u003c\/strong\u003e — Wide-span star profile distributes finger force evenly, reducing hand fatigue during repeated tightening and loosening cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🖐️\u003c\/span\u003e \u003cstrong\u003eTool-Free Hand Drive\u003c\/strong\u003e — Manual drive style means no screwdriver, hex key, or wrench needed; ideal for access panels that are opened frequently.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e \u003cstrong\u003eSteel Mandrel Insert\u003c\/strong\u003e — The threaded shank is steel for reliable thread engagement and resistance to stripping, while the knob body remains lightweight plastic.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📏\u003c\/span\u003e \u003cstrong\u003eSeven Length Options\u003c\/strong\u003e — Available in M6×15, 20, 25, 30, 40, 50, and 70 mm to match thin sheet panels through deeper structural connections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🎨\u003c\/span\u003e \u003cstrong\u003eBlack Finish\u003c\/strong\u003e — Uniform black coloring on the knob head blends cleanly into dark enclosures, rack equipment, and fabricated frames.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e \u003cstrong\u003eFlexible Pack Quantities\u003c\/strong\u003e — Choose 1, 2, 5, or 10 pieces per order so you can stock exactly what your build calls for without over-ordering.\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 Thumb Screws\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Size\u003c\/th\u003e\n\u003ctd\u003eM6 (6 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Pitch\u003c\/th\u003e\n\u003ctd\u003e1.0 mm (standard metric coarse)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLength Range\u003c\/th\u003e\n\u003ctd\u003e15 mm – 70 mm (0.59 in – 2.76 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Lengths\u003c\/th\u003e\n\u003ctd\u003e15 mm, 20 mm, 25 mm, 30 mm, 40 mm, 50 mm, 70 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHead Style\u003c\/th\u003e\n\u003ctd\u003eFive-Star (Star Knob)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDrive Style\u003c\/th\u003e\n\u003ctd\u003eManual (hand-tightened, no tool required)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKnob Material\u003c\/th\u003e\n\u003ctd\u003ePlastic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMandrel Material\u003c\/th\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eColor \/ Finish\u003c\/th\u003e\n\u003ctd\u003eBlack\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\u003ePack Quantity Options\u003c\/th\u003e\n\u003ctd\u003e1 pcs, 2 pcs, 5 pcs, 10 pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKnob Diameter\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOverall Weight (per piece)\u003c\/th\u003e\n\u003ctd\u003eSee variant options\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\u003eWhich length should I choose for my panel thickness?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eMeasure the total grip length — the combined thickness of all materials being clamped — then add at least 6–8 mm for thread engagement into the nut or tapped hole. For example, a 3 mm panel with a standard M6 hex nut needs roughly 3 mm + 5 mm nut height + a few mm clearance, so M6×15 mm is typically sufficient. For deeper assemblies or stacked materials, step up to 20, 25, or 30 mm accordingly.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow strong is the steel mandrel compared to an all-plastic thumb screw?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe steel mandrel insert carries the thread load, so these screws resist stripping and cross-threading far better than all-plastic designs. The plastic knob handles the torque transfer from your fingers. For light-duty panel fastening and access covers, the steel mandrel provides adequate clamping force. They are not intended for high-vibration structural joints where a fully metallic fastener would be required.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these thumb screws corrosion-resistant?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe plastic knob body is inherently moisture-resistant and will not rust. The steel mandrel shank may show surface oxidation over time in humid or outdoor environments. For indoor workshop, enclosure, and rack applications these perform reliably. If your application involves prolonged moisture exposure, consider applying a light coating of anti-corrosion spray to the steel shank.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill these fit a standard M6 hex nut or T-nut?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. The M6 × 1.0 mm coarse thread is the standard metric pitch and mates with any M6 hex nut, flange nut, T-nut, or M6-tapped hole machined to standard tolerance. They are widely used with aluminum extrusion T-slot nuts in 3D printer and CNC router frames.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use these on aluminum extrusion frames (e.g., 2020 or 3030 profiles)?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes — M6 thumb screws are a popular choice for 2020, 2040, and 3030 aluminum extrusion builds. Pair them with M6 T-slot nuts or drop-in nuts rated for your profile series. The five-star knob makes it easy to adjust belt tension, panel positions, or accessory mounts without tools during assembly or tuning.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I decide between 1, 2, 5, or 10 pcs?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eCount the number of fastening points in your project and add a small buffer for spares. Single-piece orders work well for replacement or testing fit. Packs of 5 or 10 are cost-effective for full enclosure builds or batch production of fixtures. The per-unit price decreases as pack quantity increases, so larger packs offer better value for multi-point assemblies.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the knob diameter of the five-star head?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe exact knob span varies by variant. Please refer to the variant options or contact us to confirm the specific knob diameter for your chosen size before ordering if clearance space is a concern in your design.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-cta\"\u003e\n🛒 Select your size and pack 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\": \"Which length should I choose for my panel thickness?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Measure the total grip length — the combined thickness of all materials being clamped — then add at least 6–8 mm for thread engagement into the nut or tapped hole. For a 3 mm panel with a standard M6 hex nut, M6×15 mm is typically sufficient. For deeper assemblies, step up to 20, 25, or 30 mm accordingly.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How strong is the steel mandrel compared to an all-plastic thumb screw?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The steel mandrel insert carries the thread load, resisting stripping and cross-threading far better than all-plastic designs. For light-duty panel fastening and access covers, the steel mandrel provides adequate clamping force. They are not intended for high-vibration structural joints.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are these thumb screws corrosion-resistant?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The plastic knob body is inherently moisture-resistant and will not rust. The steel mandrel shank may show surface oxidation in humid or outdoor environments. For indoor workshop and enclosure applications these perform reliably.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will these fit a standard M6 hex nut or T-nut?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. The M6 × 1.0 mm coarse thread mates with any M6 hex nut, flange nut, T-nut, or M6-tapped hole machined to standard tolerance, including aluminum extrusion T-slot nuts.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I use these on aluminum extrusion frames (e.g., 2020 or 3030 profiles)?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes — M6 thumb screws are a popular choice for 2020, 2040, and 3030 aluminum extrusion builds. Pair them with M6 T-slot nuts or drop-in nuts rated for your profile series.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I decide between 1, 2, 5, or 10 pcs?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Count the fastening points in your project and add a small buffer for spares. Packs of 5 or 10 are cost-effective for full enclosure builds. The per-unit price decreases as pack quantity increases.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the knob diameter of the five-star head?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The exact knob span varies by variant. Please refer to the variant options or contact us to confirm the specific knob diameter for your chosen size.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"HomeDIYer","offers":[{"title":"M6x15mm \/ 1 pcs","offer_id":52300904595730,"sku":"GLFBNHHGLBZSJ094670x1","price":2.92,"currency_code":"USD","in_stock":false},{"title":"M6x20mm \/ 1 pcs","offer_id":52300904628498,"sku":"GLFBNHHGLBZSJ094671x1","price":2.92,"currency_code":"USD","in_stock":false},{"title":"M6x25mm \/ 1 pcs","offer_id":52300904661266,"sku":"GLFBNHHGLBZSJ094672x1","price":2.92,"currency_code":"USD","in_stock":false},{"title":"M6x30mm \/ 1 pcs","offer_id":52300904694034,"sku":"GLFBNHHGLBZSJ094673x1","price":2.92,"currency_code":"USD","in_stock":false},{"title":"M6x40mm \/ 1 pcs","offer_id":52300904726802,"sku":"GLFBNHHGLBZSJ094674x1","price":2.92,"currency_code":"USD","in_stock":false},{"title":"M6x50mm \/ 1 pcs","offer_id":52300904759570,"sku":"GLFBNHHGLBZSJ094675x1","price":3.11,"currency_code":"USD","in_stock":false},{"title":"M6x70mm \/ 1 pcs","offer_id":52300904792338,"sku":"GLFBNHHGLBZSJ094676x1","price":3.39,"currency_code":"USD","in_stock":false},{"title":"M6x15mm \/ 2 pcs","offer_id":52300904825106,"sku":"GLFBNHHGLBZSJ094670x2","price":4.47,"currency_code":"USD","in_stock":false},{"title":"M6x20mm \/ 2 pcs","offer_id":52300904857874,"sku":"GLFBNHHGLBZSJ094671x2","price":4.56,"currency_code":"USD","in_stock":false},{"title":"M6x25mm \/ 2 pcs","offer_id":52300904890642,"sku":"GLFBNHHGLBZSJ094672x2","price":4.61,"currency_code":"USD","in_stock":false},{"title":"M6x30mm \/ 2 pcs","offer_id":52300904923410,"sku":"GLFBNHHGLBZSJ094673x2","price":4.69,"currency_code":"USD","in_stock":false},{"title":"M6x40mm \/ 2 pcs","offer_id":52300904956178,"sku":"GLFBNHHGLBZSJ094674x2","price":4.83,"currency_code":"USD","in_stock":false},{"title":"M6x50mm \/ 2 pcs","offer_id":52300904988946,"sku":"GLFBNHHGLBZSJ094675x2","price":5.29,"currency_code":"USD","in_stock":false},{"title":"M6x70mm \/ 2 pcs","offer_id":52300905021714,"sku":"GLFBNHHGLBZSJ094676x2","price":5.83,"currency_code":"USD","in_stock":false},{"title":"M6x15mm \/ 5 pcs","offer_id":52300905054482,"sku":"GLFBNHHGLBZSJ094670x5","price":9.86,"currency_code":"USD","in_stock":false},{"title":"M6x20mm \/ 5 pcs","offer_id":52300905087250,"sku":"GLFBNHHGLBZSJ094671x5","price":10.05,"currency_code":"USD","in_stock":false},{"title":"M6x25mm \/ 5 pcs","offer_id":52300905120018,"sku":"GLFBNHHGLBZSJ094672x5","price":10.19,"currency_code":"USD","in_stock":false},{"title":"M6x30mm \/ 5 pcs","offer_id":52300905152786,"sku":"GLFBNHHGLBZSJ094673x5","price":10.4,"currency_code":"USD","in_stock":false},{"title":"M6x40mm \/ 5 pcs","offer_id":52300905185554,"sku":"GLFBNHHGLBZSJ094674x5","price":10.73,"currency_code":"USD","in_stock":false},{"title":"M6x50mm \/ 5 pcs","offer_id":52300905218322,"sku":"GLFBNHHGLBZSJ094675x5","price":11.82,"currency_code":"USD","in_stock":false},{"title":"M6x70mm \/ 5 pcs","offer_id":52300905251090,"sku":"GLFBNHHGLBZSJ094676x5","price":13.26,"currency_code":"USD","in_stock":false},{"title":"M6x15mm \/ 10 pcs","offer_id":52300905283858,"sku":"GLFBNHHGLBZSJ094670x10","price":18.84,"currency_code":"USD","in_stock":false},{"title":"M6x20mm \/ 10 pcs","offer_id":52300905316626,"sku":"GLFBNHHGLBZSJ094671x10","price":19.16,"currency_code":"USD","in_stock":false},{"title":"M6x25mm \/ 10 pcs","offer_id":52300905349394,"sku":"GLFBNHHGLBZSJ094672x10","price":19.52,"currency_code":"USD","in_stock":false},{"title":"M6x30mm \/ 10 pcs","offer_id":52300905382162,"sku":"GLFBNHHGLBZSJ094673x10","price":19.84,"currency_code":"USD","in_stock":false},{"title":"M6x40mm \/ 10 pcs","offer_id":52300905414930,"sku":"GLFBNHHGLBZSJ094674x10","price":20.52,"currency_code":"USD","in_stock":false},{"title":"M6x50mm \/ 10 pcs","offer_id":52300905447698,"sku":"GLFBNHHGLBZSJ094675x10","price":22.7,"currency_code":"USD","in_stock":false},{"title":"M6x70mm \/ 10 pcs","offer_id":52300905480466,"sku":"GLFBNHHGLBZSJ094676x10","price":25.64,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture6of8_f6ae35e9-2183-4ada-88d2-a9bc4dcd7b88.jpg?v=1782317333","url":"https:\/\/homediyer.com\/products\/m6-thumb-screws-plastic-five-star-knob-bolts-black","provider":"HomeDIYer","version":"1.0","type":"link"}