{"product_id":"t-spring-nuts-m3-m4-m5-m6-m8-aluminium-extrusion-profile-2020-3030-4040-4545","title":"T Spring Nuts M3–M8 for 2020–4545 Aluminium Profile | 10\/20 PCS","description":"\n\u003ch2\u003eJARBLUE T Spring Nuts for Aluminium Extrusion Profiles\u003c\/h2\u003e\n\u003cp\u003eGet a rock-solid connection in your aluminium profile builds with JARBLUE's half-round T Spring Nuts. Available in M3, M4, M5, M6, and M8 thread sizes, these carbon steel spring nuts are engineered to slide smoothly into standard 2020, 3030, 4040, and 4545 aluminium extrusion slots — then lock firmly in place under load. Whether you're assembling a CNC frame, 3D printer chassis, workbench, or industrial jig, these spring nuts make alignment fast and tool changes effortless.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile Sizing:\u003c\/strong\u003e Covers M3, M4, M5, M6, and M8 thread sizes to suit a wide range of bolt configurations.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Profile Compatibility:\u003c\/strong\u003e Designed for 2020, 3030, 4040, and 4545 series aluminium extrusion profiles.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCarbon Steel Construction:\u003c\/strong\u003e Durable, high-strength carbon steel for long-lasting performance in demanding builds.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpring-Loaded Design:\u003c\/strong\u003e Half-round elasticity spring mechanism allows nuts to self-align and self-lock in the profile slot — no pre-positioning needed.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCE Certified:\u003c\/strong\u003e Meets CE certification standards for quality and safety assurance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eValue Packs:\u003c\/strong\u003e Available in convenient 10 PCS or 20 PCS sets to stock your workshop.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCustomizable:\u003c\/strong\u003e Can be customized to meet specific project requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eJARBLUE\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCarbon Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThread Sizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM3, M4, M5, M6, M8\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProfile Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2020, 3030, 4040, 4545 Aluminium Extrusion\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePack Options\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 PCS \/ 20 PCS\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCE\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eIdeal For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e3D printer frame assembly\u003c\/li\u003e\n  \u003cli\u003eCNC machine builds\u003c\/li\u003e\n  \u003cli\u003eWorkbench and shelving construction\u003c\/li\u003e\n  \u003cli\u003eIndustrial jigs and fixtures\u003c\/li\u003e\n  \u003cli\u003eDIY aluminium extrusion projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/stainless-steel-self-tapping-screws-m2-2-m4-8-phillips-wood-hinge\"\u003e10PCS Stainless Steel Self-Tapping Screws M2.2–M4.8 Phillips\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10pcs-durable-gold-blade-nut-metal-universal-trimmer-accessories-anti-loosening-line-left-hand-thread-replacement-parts-1\"\u003e10pcs Durable Gold Blade Nut Metal Universal Trimmer Accessories\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/12pcs-16mm-momentary-push-button-switch-1no-metal-2-pin-self-reset\"\u003e12pcs 16mm Momentary Push Button Switch 1NO Metal 2-Pin Self-Reset\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\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 aluminium extrusion profiles are these T spring nuts compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: These JARBLUE T spring nuts are designed to fit 2020, 3030, 4040, and 4545 series aluminium extrusion profiles. Always verify your profile slot width before ordering to ensure the correct fit.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What thread sizes are available for these spring nuts?\u003c\/h4\u003e\n\u003cp\u003eA: The T spring nuts are available in M3, M4, M5, M6, and M8 thread sizes, making them suitable for a wide range of standard bolts used in aluminium profile construction and DIY builds.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the advantage of a spring-loaded T nut over a standard T nut?\u003c\/h4\u003e\n\u003cp\u003eA: The half-round spring mechanism allows the nut to be inserted at any point along the extrusion slot and automatically self-aligns when a bolt is tightened. This eliminates the need to slide nuts from the end of the profile, saving significant assembly time.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What material are these spring nuts made from?\u003c\/h4\u003e\n\u003cp\u003eA: These T spring nuts are made from carbon steel, providing excellent strength and durability for structural and mechanical applications in aluminium profile systems.\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 aluminium extrusion profiles are these T spring nuts compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"These JARBLUE T spring nuts are designed to fit 2020, 3030, 4040, and 4545 series aluminium extrusion profiles. 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