{"product_id":"stainless-steel-flange-lock-nuts-nylon-insert-hex-m3-m16","title":"Stainless Steel Flange Lock Nuts Nylon Insert Hex M3–M16","description":"\n\u003ch2\u003eStainless Steel Flange Lock Nuts with Nylon Insert — M3 to M16\u003c\/h2\u003e\n\u003cp\u003eKeep your assemblies tight and secure with these heavy-duty \u003cstrong\u003eStainless Steel Flange Lock Nuts\u003c\/strong\u003e. Combining a nylon insert locking ring with an integrated flanged base, these hex nuts are engineered to resist loosening under vibration, rotation, and repeated use — making them ideal for machinery assembly, automotive maintenance, furniture hardware, equipment repair, and general DIY fastening projects.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNylon Insert Locking Design:\u003c\/strong\u003e An internal nylon ring grips the bolt thread and resists self-loosening caused by vibration and dynamic movement, providing a secure, long-lasting hold.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntegrated Flanged Base:\u003c\/strong\u003e The built-in flange increases the bearing surface area, distributing clamping force more evenly and reducing the chance of pull-through on softer materials.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStainless Steel \u0026amp; Nylon Construction:\u003c\/strong\u003e Bright silver stainless steel body offers strong corrosion resistance and durability; suitable for hardware fastening and general mechanical use.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard Hex Profile:\u003c\/strong\u003e Compatible with common wrenches, socket sets, and hand tools for fast, hassle-free installation and removal.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Size Range:\u003c\/strong\u003e Available in M3, M4, M5, M6, M8, M10, M12, and M16 thread sizes to cover a broad spectrum of fastening applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDetailed Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eHex Width\u003c\/th\u003e\n\u003cth\u003eHeight\u003c\/th\u003e\n\u003cth\u003eFlange Diameter\u003c\/th\u003e\n\u003cth\u003ePitch\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM3\u003c\/td\u003e\n\u003ctd\u003e5.5 mm (0.22\")\u003c\/td\u003e\n\u003ctd\u003e5.0 mm (0.20\")\u003c\/td\u003e\n\u003ctd\u003e8.0 mm (0.31\")\u003c\/td\u003e\n\u003ctd\u003e0.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM4\u003c\/td\u003e\n\u003ctd\u003e7.0 mm (0.28\")\u003c\/td\u003e\n\u003ctd\u003e6.0 mm (0.24\")\u003c\/td\u003e\n\u003ctd\u003e10.0 mm (0.39\")\u003c\/td\u003e\n\u003ctd\u003e0.7 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM5\u003c\/td\u003e\n\u003ctd\u003e8.0 mm (0.31\")\u003c\/td\u003e\n\u003ctd\u003e7.1 mm (0.28\")\u003c\/td\u003e\n\u003ctd\u003e11.8 mm (0.46\")\u003c\/td\u003e\n\u003ctd\u003e0.8 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM6\u003c\/td\u003e\n\u003ctd\u003e10.0 mm (0.39\")\u003c\/td\u003e\n\u003ctd\u003e9.1 mm (0.36\")\u003c\/td\u003e\n\u003ctd\u003e14.2 mm (0.56\")\u003c\/td\u003e\n\u003ctd\u003e1.0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM8\u003c\/td\u003e\n\u003ctd\u003e13.0 mm (0.51\")\u003c\/td\u003e\n\u003ctd\u003e11.1 mm (0.44\")\u003c\/td\u003e\n\u003ctd\u003e17.9 mm (0.70\")\u003c\/td\u003e\n\u003ctd\u003e1.25 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM10\u003c\/td\u003e\n\u003ctd\u003e15.0 mm (0.59\")\u003c\/td\u003e\n\u003ctd\u003e13.5 mm (0.53\")\u003c\/td\u003e\n\u003ctd\u003e21.8 mm (0.86\")\u003c\/td\u003e\n\u003ctd\u003e1.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM12\u003c\/td\u003e\n\u003ctd\u003e18.0 mm (0.71\")\u003c\/td\u003e\n\u003ctd\u003e16.1 mm (0.63\")\u003c\/td\u003e\n\u003ctd\u003e26.0 mm (1.02\")\u003c\/td\u003e\n\u003ctd\u003e1.75 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM16\u003c\/td\u003e\n\u003ctd\u003e24.0 mm (0.94\")\u003c\/td\u003e\n\u003ctd\u003e20.3 mm (0.80\")\u003c\/td\u003e\n\u003ctd\u003e34.5 mm (1.36\")\u003c\/td\u003e\n\u003ctd\u003e2.0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eM3 \/ M4 \/ M5 — \u003cstrong\u003e20 pcs\u003c\/strong\u003e Flange Lock Nuts each\u003c\/li\u003e\n  \u003cli\u003eM6 — \u003cstrong\u003e10 pcs\u003c\/strong\u003e Flange Lock Nuts\u003c\/li\u003e\n  \u003cli\u003eM8 \/ M10 \/ M12 — \u003cstrong\u003e5 pcs\u003c\/strong\u003e Flange Lock Nuts each\u003c\/li\u003e\n  \u003cli\u003eM16 — \u003cstrong\u003e1 pc\u003c\/strong\u003e Flange Lock Nut\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eMachinery assembly \u0026amp; industrial equipment\u003c\/li\u003e\n  \u003cli\u003eAutomotive maintenance \u0026amp; repair\u003c\/li\u003e\n  \u003cli\u003eFurniture hardware \u0026amp; woodworking projects\u003c\/li\u003e\n  \u003cli\u003eGeneral DIY home improvement \u0026amp; workshop tasks\u003c\/li\u003e\n  \u003cli\u003eElectronics enclosures \u0026amp; structural brackets\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLooking for more useful hardware and workshop accessories? Check out our \u003ca href=\"\/products\/1pc-10g-high-grade-silicon-grease-lubricant-o-lubrication-good-odorless-smoothness-for-o-rings-tube-silicone-grease-lubricant\"\u003eSilicone Grease Lubricant for O-Rings\u003c\/a\u003e, our \u003ca href=\"\/products\/3pcs-silicone-sealant-scraper-set-multi-functional-caulking-nozzle-tools-for-tile-floor-joints-grout-finishing-and-renovation\"\u003eSilicone Sealant Scraper Set\u003c\/a\u003e, or our \u003ca href=\"\/products\/1pc-multi-use-faucet-bubbler-wrenches-6-sizes-sink-wrenches-detach-tool-for-kitchen-bathroom-faucet-parts-repair-spanner\"\u003eMulti-Use Faucet Bubbler Wrenches\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Slight color variation may occur due to different monitor settings. Minor dimensional tolerances are possible due to manual measurement.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/personal-protective-equipment\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on personal protective equipment\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is the difference between a standard hex nut and a flange lock nut?\u003c\/h4\u003e\n\u003cp\u003eA: A standard hex nut provides a flat bearing surface on one side, while a flange lock nut features an integrated wide flange that spreads the clamping load over a larger area. These stainless steel flange lock nuts also include a nylon insert ring that grips the bolt thread to resist self-loosening under vibration — making them far more secure than a plain hex nut in dynamic applications.\u003c\/p\u003e\n\u003ch4\u003eQ: Are these flange lock nuts reusable?\u003c\/h4\u003e\n\u003cp\u003eA: Nylon insert lock nuts can typically be reused a limited number of times. The nylon ring retains most of its grip after initial use, but for critical safety applications it is best practice to replace them after each removal to maintain optimal locking performance.\u003c\/p\u003e\n\u003ch4\u003eQ: Which thread sizes are available and how many pieces are included?\u003c\/h4\u003e\n\u003cp\u003eA: These stainless steel hex flange lock nuts are available in M3, M4, M5, M6, M8, M10, M12, and M16. Smaller sizes (M3–M5) include 20 pcs, M6 includes 10 pcs, M8–M12 include 5 pcs each, and M16 includes 1 pc per order.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the difference between a standard hex nut and a flange lock nut?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A standard hex nut provides a flat bearing surface on one side, while a flange lock nut features an integrated wide flange that spreads the clamping load over a larger area. These stainless steel flange lock nuts also include a nylon insert ring that grips the bolt thread to resist self-loosening under vibration — making them far more secure than a plain hex nut in dynamic applications.\"}}, {\"@type\": \"Question\", \"name\": \"Are these flange lock nuts reusable?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Nylon insert lock nuts can typically be reused a limited number of times. The nylon ring retains most of its grip after initial use, but for critical safety applications it is best practice to replace them after each removal to maintain optimal locking performance.\"}}, {\"@type\": \"Question\", \"name\": \"Which thread sizes are available and how many pieces are included?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"These stainless steel hex flange lock nuts are available in M3, M4, M5, M6, M8, M10, M12, and M16. Smaller sizes (M3–M5) include 20 pcs, M6 includes 10 pcs, M8–M12 include 5 pcs each, and M16 includes 1 pc per order.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/x1davz-b4.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/x1davz-b4.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Stainless Steel Flange Lock Nuts Nylon Insert Hex M3–M16\", \"item\": \"https:\/\/x1davz-b4.myshopify.com\/products\/stainless-steel-flange-lock-nuts-nylon-insert-hex-m3-m16\"}]}\u003c\/script\u003e","brand":"Nixie","offers":[{"title":"M12 5Pcs","offer_id":67605608038499,"sku":"1005012978465905-M12 5Pcs","price":16.81,"currency_code":"USD","in_stock":true},{"title":"M16 1Pc","offer_id":67605608071267,"sku":"1005012978465905-M16 1Pc","price":13.3,"currency_code":"USD","in_stock":true},{"title":"M8 5Pcs","offer_id":67605608104035,"sku":"1005012978465905-M8 5Pcs","price":9.93,"currency_code":"USD","in_stock":true},{"title":"M10 5Pcs","offer_id":67605608136803,"sku":"1005012978465905-M10 5Pcs","price":12.95,"currency_code":"USD","in_stock":true},{"title":"M5 20Pcs","offer_id":67605608169571,"sku":"1005012978465905-M5 20Pcs","price":11.06,"currency_code":"USD","in_stock":true},{"title":"M6 10Pcs","offer_id":67605608202339,"sku":"1005012978465905-M6 10Pcs","price":11.23,"currency_code":"USD","in_stock":true},{"title":"M3 20Pcs","offer_id":67605608235107,"sku":"1005012978465905-M3 20Pcs","price":10.64,"currency_code":"USD","in_stock":true},{"title":"M4 20Pcs","offer_id":67605608267875,"sku":"1005012978465905-M4 20Pcs","price":10.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/2047\/6003\/files\/Sa660c66e1f2641d9aa1ae45a6f4c5a97D.webp?v=1790738324","url":"https:\/\/nixiehaven.com\/products\/stainless-steel-flange-lock-nuts-nylon-insert-hex-m3-m16","provider":"Nixie","version":"1.0","type":"link"}