{"product_id":"stainless-steel-flat-head-knurled-thumb-screws-m6","title":"Stainless Steel Flat Head Knurled Thumb Screws Hand Grip Knob Bolts M6 L=10-25mm","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eM6 Stainless Steel Knurled Thumb Screws — Tool-Free Fastening for Precision Applications\u003c\/h2\u003e\n\u003cp\u003eWhen repeated access panels, enclosure lids, or jig fixtures demand a fastener you can tighten and release without reaching for a screwdriver, standard bolts become a daily frustration. Engineers, makers, and workshop professionals who need reliable hand-tightened fastening choose knurled thumb screws precisely because finger grip replaces tool dependency — saving time on every cycle.\u003c\/p\u003e\n\u003cp\u003eThese flat head knurled thumb screws are machined from 304 stainless steel and feature a fully knurled cylindrical grip body with a flat countersunk head profile. Available in M6 thread diameter with lengths ranging from 10 mm (≈0.39 in) to 25 mm (≈0.98 in), they are sold in selectable package quantities of 1, 2, 5, 10, or 20 pieces per order.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include securing instrument enclosure covers where tool-free access is required, clamping workholding jigs on CNC routers and drill press tables, and fastening removable guards or inspection panels on light machinery — all scenarios where stainless steel knurled thumb screws for enclosures deliver measurable workflow efficiency.\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. Verify thread pitch and hole depth against your application before ordering. Flat head profile requires a countersunk or flush-mount seat for full seating.\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These M6 Knurled Thumb Screws\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-list\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\u003cstrong\u003e304 Stainless Steel Construction\u003c\/strong\u003e\u003cbr\u003eResists oxidation and surface corrosion in humid workshop and outdoor enclosure environments without surface coatings that can wear off.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e✋\u003c\/span\u003e\u003cstrong\u003eFull-Circumference Knurled Grip\u003c\/strong\u003e\u003cbr\u003eDiamond-pattern knurling across the entire grip body maximises torque transfer from fingertips, reducing slip even with gloved hands.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\u003cstrong\u003eFlat Countersunk Head Profile\u003c\/strong\u003e\u003cbr\u003eSits flush or near-flush with the mating surface when used in a countersunk hole, keeping panel faces clean and snag-free.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📏\u003c\/span\u003e\u003cstrong\u003eSix Length Options: 10 mm to 25 mm\u003c\/strong\u003e\u003cbr\u003eM6×10, ×12, ×14, ×16, ×20, and ×25 mm cover the majority of panel thickness and clamping depth requirements without custom ordering.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e\u003cstrong\u003eFlexible Pack Sizes (1–20 pcs)\u003c\/strong\u003e\u003cbr\u003eOrder a single piece for a prototype or a pack of 20 for production runs — pricing scales with quantity so you only pay for what you need.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔄\u003c\/span\u003e\u003cstrong\u003eReusable Without Thread Damage\u003c\/strong\u003e\u003cbr\u003eStainless steel maintains thread integrity through repeated installation and removal cycles, making these suitable for access panels opened frequently.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — M6 Knurled Thumb Screws\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003e304 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Diameter\u003c\/th\u003e\n\u003ctd\u003eM6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Pitch\u003c\/th\u003e\n\u003ctd\u003e1.0 mm (standard M6 coarse)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Lengths\u003c\/th\u003e\n\u003ctd\u003e10 mm, 12 mm, 14 mm, 16 mm, 20 mm, 25 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHead Style\u003c\/th\u003e\n\u003ctd\u003eFlat (Countersunk)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDrive Style\u003c\/th\u003e\n\u003ctd\u003eKnurled hand grip — no tool required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eNatural stainless (uncoated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGrip Knurl Pattern\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHead Diameter\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePackage Quantity\u003c\/th\u003e\n\u003ctd\u003e1 \/ 2 \/ 5 \/ 10 \/ 20 pcs (select above)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStandards Compliance\u003c\/th\u003e\n\u003ctd\u003eContact us to confirm\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 pitch do these M6 thumb screws use?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThese screws use the standard M6 coarse thread pitch of 1.0 mm, which is the most common M6 pitch used in general engineering and enclosure hardware. If your application requires M6 fine pitch (0.75 mm), please contact us to confirm compatibility before ordering.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I tighten these to a specific torque value?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eKnurled thumb screws are designed for hand-tightening only and are not rated for torque-wrench application. They are intended for applications where finger-tight clamping force is sufficient — such as access panels, inspection covers, and adjustable jig stops. For structural or high-vibration joints requiring defined torque, a hex socket cap screw is more appropriate.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill 304 stainless steel resist rust in outdoor or humid conditions?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003e304 stainless steel provides good resistance to atmospheric corrosion and humidity. It performs well in most indoor and sheltered outdoor environments. In marine or high-chloride environments, 316 stainless steel offers superior resistance — contact us if you need 316-grade variants.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes the flat head require a countersunk hole?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. The flat (countersunk) head profile is designed to seat flush within a countersunk recess. If your panel has a standard through-hole without a countersink, the head will sit proud of the surface. For applications where a protruding head is acceptable, this is not a functional issue — but for flush-mount requirements, ensure your hole is countersunk to match the head angle.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I choose the correct length for my application?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eMeasure the total clamping stack — the combined thickness of all materials the screw must pass through — then add 3–5 mm for thread engagement in the receiving nut or tapped hole. For example, a 6 mm panel with a 4 mm nut would typically suit an M6×10 or M6×12 mm screw. When in doubt, size up to ensure adequate thread engagement.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these compatible with standard M6 hex nuts and threaded inserts?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. The M6×1.0 thread is fully compatible with standard M6 hex nuts, nylon lock nuts, wing nuts, and M6 threaded inserts (heat-set or press-fit). This makes them straightforward to integrate into existing assemblies without sourcing specialty hardware.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use these in a CNC jig or workholding fixture?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes — this is one of the most common use cases. Knurled thumb screws are widely used on T-slot workholding fixtures, drill press fences, and router jig stops where the operator needs to reposition and re-clamp quickly between operations. The stainless steel construction also resists cutting fluid contamination better than zinc-plated alternatives.\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 Package 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 pitch do these M6 thumb screws use?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"These screws use the standard M6 coarse thread pitch of 1.0 mm. If your application requires M6 fine pitch (0.75 mm), please contact us to confirm compatibility before ordering.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I tighten these to a specific torque value?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Knurled thumb screws are designed for hand-tightening only and are not rated for torque-wrench application. They are intended for access panels, inspection covers, and adjustable jig stops.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will 304 stainless steel resist rust in outdoor or humid conditions?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"304 stainless steel provides good resistance to atmospheric corrosion and humidity. In marine or high-chloride environments, 316 stainless steel offers superior resistance.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Does the flat head require a countersunk hole?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. The flat countersunk head profile is designed to seat flush within a countersunk recess. For flush-mount requirements, ensure your hole is countersunk to match the head angle.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I choose the correct length for my application?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Measure the total clamping stack thickness, then add 3–5 mm for thread engagement. For example, a 6 mm panel with a 4 mm nut would typically suit an M6×10 or M6×12 mm screw.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are these compatible with standard M6 hex nuts and threaded inserts?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. The M6×1.0 thread is fully compatible with standard M6 hex nuts, nylon lock nuts, wing nuts, and M6 threaded inserts (heat-set or press-fit).\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I use these in a CNC jig or workholding fixture?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. Knurled thumb screws are widely used on T-slot workholding fixtures, drill press fences, and router jig stops. The stainless steel construction resists cutting fluid contamination better than zinc-plated alternatives.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"HomeDIYer","offers":[{"title":"M6*10mm \/ 1","offer_id":52291505455378,"sku":"GYWXWJLWJ02546x1","price":2.03,"currency_code":"USD","in_stock":true},{"title":"M6*12mm \/ 1","offer_id":52291505488146,"sku":"GYWXWJLWJ02547x1","price":2.03,"currency_code":"USD","in_stock":true},{"title":"M6*14mm \/ 1","offer_id":52291505520914,"sku":"GYWXWJLWJ02548x1","price":2.11,"currency_code":"USD","in_stock":true},{"title":"M6*16mm \/ 1","offer_id":52291505553682,"sku":"GYWXWJLWJ02549x1","price":2.11,"currency_code":"USD","in_stock":true},{"title":"M6*20mm \/ 1","offer_id":52291505586450,"sku":"GYWXWJLWJ02550x1","price":2.16,"currency_code":"USD","in_stock":true},{"title":"M6*25mm \/ 1","offer_id":52291505619218,"sku":"GYWXWJLWJ02551x1","price":2.16,"currency_code":"USD","in_stock":true},{"title":"M6*10mm \/ 2","offer_id":52291505651986,"sku":"GYWXWJLWJ02546x2","price":2.57,"currency_code":"USD","in_stock":true},{"title":"M6*12mm \/ 2","offer_id":52291505684754,"sku":"GYWXWJLWJ02547x2","price":2.57,"currency_code":"USD","in_stock":true},{"title":"M6*14mm \/ 2","offer_id":52291505717522,"sku":"GYWXWJLWJ02548x2","price":2.65,"currency_code":"USD","in_stock":true},{"title":"M6*16mm \/ 2","offer_id":52291505750290,"sku":"GYWXWJLWJ02549x2","price":2.71,"currency_code":"USD","in_stock":true},{"title":"M6*20mm \/ 2","offer_id":52291505783058,"sku":"GYWXWJLWJ02550x2","price":2.84,"currency_code":"USD","in_stock":true},{"title":"M6*25mm \/ 2","offer_id":52291505815826,"sku":"GYWXWJLWJ02551x2","price":2.92,"currency_code":"USD","in_stock":true},{"title":"M6*10mm \/ 5","offer_id":52291505848594,"sku":"GYWXWJLWJ02546x5","price":4.88,"currency_code":"USD","in_stock":true},{"title":"M6*12mm \/ 5","offer_id":52291505881362,"sku":"GYWXWJLWJ02547x5","price":5.1,"currency_code":"USD","in_stock":true},{"title":"M6*14mm \/ 5","offer_id":52291505914130,"sku":"GYWXWJLWJ02548x5","price":5.24,"currency_code":"USD","in_stock":true},{"title":"M6*16mm \/ 5","offer_id":52291505946898,"sku":"GYWXWJLWJ02549x5","price":5.43,"currency_code":"USD","in_stock":true},{"title":"M6*20mm \/ 5","offer_id":52291505979666,"sku":"GYWXWJLWJ02550x5","price":5.83,"currency_code":"USD","in_stock":true},{"title":"M6*25mm \/ 5","offer_id":52291506012434,"sku":"GYWXWJLWJ02551x5","price":6.19,"currency_code":"USD","in_stock":true},{"title":"M6*10mm \/ 10","offer_id":52291506045202,"sku":"GYWXWJLWJ02546x10","price":9.1,"currency_code":"USD","in_stock":true},{"title":"M6*12mm \/ 10","offer_id":52291506077970,"sku":"GYWXWJLWJ02547x10","price":9.51,"currency_code":"USD","in_stock":true},{"title":"M6*14mm \/ 10","offer_id":52291506110738,"sku":"GYWXWJLWJ02548x10","price":9.78,"currency_code":"USD","in_stock":true},{"title":"M6*16mm \/ 10","offer_id":52291506143506,"sku":"GYWXWJLWJ02549x10","price":10.13,"currency_code":"USD","in_stock":true},{"title":"M6*20mm \/ 10","offer_id":52291506176274,"sku":"GYWXWJLWJ02550x10","price":10.95,"currency_code":"USD","in_stock":true},{"title":"M6*25mm \/ 10","offer_id":52291506209042,"sku":"GYWXWJLWJ02551x10","price":11.63,"currency_code":"USD","in_stock":true},{"title":"M6*10mm \/ 20","offer_id":52291506241810,"sku":"GYWXWJLWJ02546x20","price":17.53,"currency_code":"USD","in_stock":true},{"title":"M6*12mm \/ 20","offer_id":52291506274578,"sku":"GYWXWJLWJ02547x20","price":18.21,"currency_code":"USD","in_stock":true},{"title":"M6*14mm \/ 20","offer_id":52291506307346,"sku":"GYWXWJLWJ02548x20","price":18.84,"currency_code":"USD","in_stock":true},{"title":"M6*16mm \/ 20","offer_id":52291506340114,"sku":"GYWXWJLWJ02549x20","price":19.52,"currency_code":"USD","in_stock":true},{"title":"M6*20mm \/ 20","offer_id":52291506372882,"sku":"GYWXWJLWJ02550x20","price":21.2,"currency_code":"USD","in_stock":true},{"title":"M6*25mm \/ 20","offer_id":52291506405650,"sku":"GYWXWJLWJ02551x20","price":22.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture3of5_aa673485-0a74-478c-9bde-8bcf163a4328.jpg?v=1781882427","url":"https:\/\/homediyer.com\/de\/products\/stainless-steel-flat-head-knurled-thumb-screws-m6","provider":"HomeDIYer","version":"1.0","type":"link"}