{"title":"DIN 65480 MJ Thread Self-Locking Nut | 347\/321 SS | AMS Certified | FULLERKREG","description":"\u003ch1\u003eDIN 65480 MJ Thread Self-Locking Hex Flange Nut\u003c\/h1\u003e\n\n\u003cp\u003eFULLERKREG DIN 65480 self-locking nuts feature a hexagonal flange body with an MJ thread form and a mechanically deformed upper locking zone — engineered to maintain clamp load under vibration without secondary locking elements. Manufactured from AMS5646 (Alloy 347) or AMS5645 (Alloy 321) austenitic stainless steel wire, these nuts meet the full requirements of DIN 267, Part 15, Class 19 and are surface-treated per AMS2410 (silver plate) with fluorescent penetrant inspection per AMS2645.\u003c\/p\u003e\n\n\u003cp\u003eDesigned for aerospace structural and engine applications where MJ thread engagement, corrosion resistance, and reliable prevailing torque are mandatory.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e🔩 \u003cstrong\u003eStandard:\u003c\/strong\u003e DIN 65480 | Procurement Spec: DIN 267, Part 15, Class 19\u003c\/li\u003e\n  \u003cli\u003e🧲 \u003cstrong\u003eThread Form:\u003c\/strong\u003e MJ metric thread (4H6H \/ 4H5H tolerance class)\u003c\/li\u003e\n  \u003cli\u003e⚙️ \u003cstrong\u003eLocking Mechanism:\u003c\/strong\u003e Upper thread zone mechanically deformed to produce prevailing torque — no insert required\u003c\/li\u003e\n  \u003cli\u003e🛡️ \u003cstrong\u003eMaterial:\u003c\/strong\u003e AMS5646 (Alloy 347) or AMS5645 (Alloy 321) stainless steel wire\u003c\/li\u003e\n  \u003cli\u003e✈️ \u003cstrong\u003eSurface Treatment:\u003c\/strong\u003e Silver plate per AMS2410\u003c\/li\u003e\n  \u003cli\u003e🔬 \u003cstrong\u003eInspection:\u003c\/strong\u003e Fluorescent penetrant inspection per AMS2645; surface roughness verified\u003c\/li\u003e\n  \u003cli\u003e📐 \u003cstrong\u003eCoating Thickness:\u003c\/strong\u003e 0.005–0.010 mm\u003c\/li\u003e\n  \u003cli\u003e📏 \u003cstrong\u003eBreak Sharp Edges:\u003c\/strong\u003e 0.08–0.25 mm\u003c\/li\u003e\n  \u003cli\u003e🏭 \u003cstrong\u003eBrand:\u003c\/strong\u003e FULLERKREG — aerospace fastener specialist\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eDimensional Data\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eNote: Dimension A (across flats) includes deformation of the self-locking device. All dimensions in mm. Wire dia: 4.216 ± 0.025 mm.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eDrawing No.\u003c\/th\u003e\n      \u003cth\u003eThread\u003c\/th\u003e\n      \u003cth\u003eA — Flange OD (mm)\u003c\/th\u003e\n      \u003cth\u003eH — Nut Height (mm)\u003c\/th\u003e\n      \u003cth\u003eW — Across Flats (mm)\u003c\/th\u003e\n      \u003cth\u003eUnit Weight (kg\/100pcs)\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eDIN65480-03D \/ D04-MJ3-10\u003c\/td\u003e\n      \u003ctd\u003eMJ3 × 0.5 – 4H6H\u003c\/td\u003e\n      \u003ctd\u003e6.0\u003c\/td\u003e\n      \u003ctd\u003e3.0\u003c\/td\u003e\n      \u003ctd\u003e4\u003c\/td\u003e\n      \u003ctd\u003e0.028\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eDIN65480-04D \/ D04-MJ4-10\u003c\/td\u003e\n      \u003ctd\u003eMJ4 × 0.7 – 4H6H\u003c\/td\u003e\n      \u003ctd\u003e7.4\u003c\/td\u003e\n      \u003ctd\u003e4.0\u003c\/td\u003e\n      \u003ctd\u003e5\u003c\/td\u003e\n      \u003ctd\u003e0.05\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eDIN65480-05D \/ D04-MJ5-10\u003c\/td\u003e\n      \u003ctd\u003eMJ5 × 0.8 – 4H6H\u003c\/td\u003e\n      \u003ctd\u003e9.1\u003c\/td\u003e\n      \u003ctd\u003e5.0\u003c\/td\u003e\n      \u003ctd\u003e6\u003c\/td\u003e\n      \u003ctd\u003e0.08\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eDIN65480-06D \/ D04-MJ6-10\u003c\/td\u003e\n      \u003ctd\u003eMJ6 × 1.0 – 4H5H\u003c\/td\u003e\n      \u003ctd\u003e10.6\u003c\/td\u003e\n      \u003ctd\u003e5.4\u003c\/td\u003e\n      \u003ctd\u003e7\u003c\/td\u003e\n      \u003ctd\u003e0.115\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eDIN65480-07D \/ D04-MJ7-10\u003c\/td\u003e\n      \u003ctd\u003eMJ7 × 1.0 – 4H5H\u003c\/td\u003e\n      \u003ctd\u003e12.1\u003c\/td\u003e\n      \u003ctd\u003e6.3\u003c\/td\u003e\n      \u003ctd\u003e8\u003c\/td\u003e\n      \u003ctd\u003e0.17\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eDIN65480-08D \/ D04-MJ8-10\u003c\/td\u003e\n      \u003ctd\u003eMJ8 × 1.0 – 4H5H\u003c\/td\u003e\n      \u003ctd\u003e13.6\u003c\/td\u003e\n      \u003ctd\u003e7.2\u003c\/td\u003e\n      \u003ctd\u003e10\u003c\/td\u003e\n      \u003ctd\u003e0.315\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eDIN65480-10D \/ D04-MJ10-10\u003c\/td\u003e\n      \u003ctd\u003eMJ10 × 1.25 – 4H5H\u003c\/td\u003e\n      \u003ctd\u003e16.8\u003c\/td\u003e\n      \u003ctd\u003e9.0\u003c\/td\u003e\n      \u003ctd\u003e12\u003c\/td\u003e\n      \u003ctd\u003e0.475\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eDIN65480-12D \/ D04-MJ12-10\u003c\/td\u003e\n      \u003ctd\u003eMJ12 × 1.25 – 4H5H\u003c\/td\u003e\n      \u003ctd\u003e19.9\u003c\/td\u003e\n      \u003ctd\u003e10.8\u003c\/td\u003e\n      \u003ctd\u003e14\u003c\/td\u003e\n      \u003ctd\u003e1.000\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003eDrawing Reference (DIN65480-04D \/ P\/N: D04-MJ4-10):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHead marks: NONE\u003c\/li\u003e\n  \u003cli\u003eThread tolerance: M4×0.7 – 4H6H (example); C'SK 90°, 120° to dia 4.00–4.25 both sides\u003c\/li\u003e\n  \u003cli\u003eFlange OD nominal (MJ4): 4.20 \/ 3.90 mm step; overall height 7.06 \/ 6.81 mm\u003c\/li\u003e\n  \u003cli\u003eAcross flats min (MJ4): 5.45 MIN; head OD: 5.00 \/ 4.82 mm\u003c\/li\u003e\n  \u003cli\u003eLocking zone: upper threaded portion deformed to produce self-locking (e)\u003c\/li\u003e\n  \u003cli\u003eSurface texture: per ISO 1302 | Prevailing torques per DIN 267, Part 15, Class 10\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eMaterial \u0026amp; Process Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eItem\u003c\/th\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMaterial (Option A)\u003c\/td\u003e\n      \u003ctd\u003eAMS5646 — Alloy 347 (Cb+Ta stabilized austenitic SS)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMaterial (Option B)\u003c\/td\u003e\n      \u003ctd\u003eAMS5645 — Alloy 321 (Ti stabilized austenitic SS)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eWire Diameter\u003c\/td\u003e\n      \u003ctd\u003e4.216 ± 0.025 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eSurface Treatment\u003c\/td\u003e\n      \u003ctd\u003eSilver plate per AMS2410\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eNDT Inspection\u003c\/td\u003e\n      \u003ctd\u003eFluorescent penetrant inspection per AMS2645\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eSurface Roughness\u003c\/td\u003e\n      \u003ctd\u003ePer drawing callout\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCoating Thickness\u003c\/td\u003e\n      \u003ctd\u003e0.005–0.010 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eBreak Sharp Edges\u003c\/td\u003e\n      \u003ctd\u003e0.08–0.25 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003ePrevailing Torque Class\u003c\/td\u003e\n      \u003ctd\u003eDIN 267, Part 15, Class 10 (ground) \/ Class 19 (procurement)\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eSelection Guide\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eRequirement\u003c\/th\u003e\n      \u003cth\u003eRecommended Size \/ Grade\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eLightweight aerospace bracket fastening\u003c\/td\u003e\n      \u003ctd\u003eMJ3–MJ5, Alloy 321 (AMS5645)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eHigh-temperature engine zone\u003c\/td\u003e\n      \u003ctd\u003eMJ6–MJ8, Alloy 347 (AMS5646) — superior oxidation resistance\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eStructural joint with high vibration\u003c\/td\u003e\n      \u003ctd\u003eMJ8–MJ12, 4H5H tolerance, prevailing torque per DIN 267 Pt.15\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eSilver-plated contact surface required\u003c\/td\u003e\n      \u003ctd\u003eAll sizes — AMS2410 silver plate standard\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eFluorescent penetrant inspection required\u003c\/td\u003e\n      \u003ctd\u003eAll sizes — AMS2645 FPI standard\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eStandard Reference\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDIN 65480\u003c\/strong\u003e specifies hexagon nuts with flange and MJ thread, self-locking type, for aerospace applications. The MJ thread profile features a larger root radius than standard M threads, reducing stress concentration and improving fatigue life — critical for flight-critical fastener joints. Prevailing torque is achieved by mechanical deformation of the upper thread zone (no nylon insert), making these nuts suitable for elevated temperature environments where polymer inserts would degrade.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eProduct Gallery\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"width:25%; text-align:center; padding:12px;\"\u003e\u003cem\u003e[Image 1]\u003c\/em\u003e\u003c\/td\u003e\n      \u003ctd style=\"width:25%; text-align:center; padding:12px;\"\u003e\u003cem\u003e[Image 2]\u003c\/em\u003e\u003c\/td\u003e\n      \u003ctd style=\"width:25%; text-align:center; padding:12px;\"\u003e\u003cem\u003e[Image 3]\u003c\/em\u003e\u003c\/td\u003e\n      \u003ctd style=\"width:25%; text-align:center; padding:12px;\"\u003e\u003cem\u003e[Image 4]\u003c\/em\u003e\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eWhy FULLERKREG\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e🏭 \u003cstrong\u003eAerospace-Grade Manufacturing\u003c\/strong\u003e — DIN 65480 compliant, AMS-certified materials and processes\u003c\/li\u003e\n  \u003cli\u003e📋 \u003cstrong\u003eFull Traceability\u003c\/strong\u003e — Material certs, FPI reports, and dimensional inspection records available per order\u003c\/li\u003e\n  \u003cli\u003e🔬 \u003cstrong\u003eDual-Material Offering\u003c\/strong\u003e — Alloy 347 (AMS5646) and Alloy 321 (AMS5645) in stock\u003c\/li\u003e\n  \u003cli\u003e📦 \u003cstrong\u003eWholesale \u0026amp; OEM Supply\u003c\/strong\u003e — Bulk pricing, blanket orders, and custom packaging available\u003c\/li\u003e\n  \u003cli\u003e⚡ \u003cstrong\u003eFast Quote Turnaround\u003c\/strong\u003e — Engineering support and competitive pricing within 24 hours\u003c\/li\u003e\n  \u003cli\u003e🌐 \u003cstrong\u003eGlobal Shipping\u003c\/strong\u003e — Export-ready with full documentation for international aerospace supply chains\u003c\/li\u003e\n\u003c\/ul\u003e","products":[],"url":"https:\/\/www.fullerkr.com\/collections\/din-65480-mj-hex-nut.oembed","provider":"Fullerkreg Fasteners","version":"1.0","type":"link"}