{"title":"M7 Titanium Bolt","description":"\u003cp\u003e\u003cstrong\u003eSpecialized Grade 5 Ti-6Al-4V titanium M7 wheel assembly bolts custom-engineered for rebuilding 2-piece and 3-piece modular split-rim wheels, including BBS RS, RC, LM, and OZ Racing.\u003c\/strong\u003e M7 × 1.0mm is the iconic wheel assembly thread standard where shedding rotational, unsprung weight directly sharpens suspension response and vehicle acceleration. Manufactured from aerospace TC4 titanium with rolled threads, our M7 wheel hardware delivers over 950 MPa tensile strength, imperviousness to brake dust and road salt, and distinct 12-point bi-hex styling.\u003c\/p\u003e\n\n\u003ch3\u003eM7 Head Configurations \u0026amp; Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOuter 12-Point Bi-Hex Flange (32mm):\u003c\/strong\u003e Driven with an 8mm 12-point socket, spreading high assembly torque across twelve contact faces to eliminate tool slipping during repeated rebuilding.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInner 12-Point Version (24.5mm \u0026amp; 32mm):\u003c\/strong\u003e Recessed internal drive for clean faceplate aesthetics on vintage and modern multi-piece wheels.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePremium PVD Finishes:\u003c\/strong\u003e Natural Titanium, PVD Vacuum-Coated Gold, Rainbow, Burn Blue, and PVD Deep Black.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Fasteners \u0026amp; Technical Guides\u003c\/h3\u003e\n\u003cp\u003eNeed wheel hardware for other split-rims? View our \u003ca href=\"\/vi-vn\/collections\/5-16-18-titanium-bolt\"\u003e5\/16\"-18 Imperial Wheel Bolts\u003c\/a\u003e and \u003ca href=\"\/vi-vn\/collections\/m8-titanium-bolt\"\u003eM8 Wheel Assembly Bolts\u003c\/a\u003e. Learn about rotational mass reduction in our guide: \u003ca href=\"\/vi-vn\/blogs\/technical-resources\/titanium-wheel-bolts-grade-5-ti-6al-4v-unsprung-weight-reduction\"\u003eUnsprung Weight \u0026amp; Titanium Wheel Bolts\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdiv itemscope itemtype=\"https:\/\/schema.org\/FAQPage\"\u003e\n  \u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n    \u003ch4 itemprop=\"name\"\u003eAre these M7 titanium bolts suitable for BBS split-rim wheel rebuilds?\u003c\/h4\u003e\n    \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n      \u003cp itemprop=\"text\"\u003eYes. Specifically designed with M7 × 1.0mm pitch and 8mm 12-point flange heads to fit BBS RS, RC, LM, and similar multi-piece wheels.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n    \u003ch4 itemprop=\"name\"\u003eWhat is the recommended torque specification for M7 wheel hub assembly bolts?\u003c\/h4\u003e\n    \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n      \u003cp itemprop=\"text\"\u003eRecommended assembly torque with threadlocker\/anti-seize is 15–18 N·m (11–13.3 lb-ft). Always torque in a crisscross pattern in multiple stages.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n    \u003ch4 itemprop=\"name\"\u003eDo M7 titanium wheel bolts rust or corrode from brake dust?\u003c\/h4\u003e\n    \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n      \u003cp itemprop=\"text\"\u003eNo. Grade 5 titanium forms a passive oxide layer that resists road salt, brake dust acid, and atmospheric corrosion permanently without flaking.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","products":[{"product_id":"titanium-bolt-m7-1-24-5-32mm-inner-12point-flange-bolts-for-car-wheel-hub-screws-bbs-specific-pitch-1mm-by-tianswer","title":"Grade 5 Titanium M7 12-Point Inner Flange Wheel Hub Bolt for BBS Wheels","description":"\u003cp\u003e\u003cstrong\u003eAerospace-grade Ti-6Al-4V Grade 5 titanium M7×1.0mm 12-point flange assembly bolts engineered specifically for restoring, rebuilding, and re-lipping iconic BBS 2-piece and 3-piece modular split wheels.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eBBS Multi-Piece Wheel Architecture \u0026amp; Precision Fitment\u003c\/h3\u003e\n\u003cp\u003eRebuilding iconic modular split wheels requires zero-compromise hardware. These precision CNC-machined titanium bolts feature exact OEM BBS thread specifications (M7×1.0mm pitch) with an integrated 12.6mm load-spreading flange and an 8mm 12-point (bi-hex) drive head. Available in standard 24.5mm length (factory fitment for OEM lips and barrels) and extended 32mm length (for stepped lips, thicker custom forged faces, or multi-piece conversions), they guarantee true radial runout and airtight rim barrel sealing.\u003c\/p\u003e\n\n\u003ch3\u003eUnsprung \u0026amp; Rotational Mass Reduction\u003c\/h3\u003e\n\u003cp\u003eA complete set of four 3-piece wheels utilizes between 120 and 160 assembly bolts (typically 30 to 40 per wheel). Swapping factory steel bolts for Grade 5 titanium slashes hardware weight by over 45%. Because these fasteners sit at the outer perimeter of the wheel assembly, reducing peripheral rotating mass noticeably decreases rotational inertia, sharpens turn-in responsiveness, and improves suspension dampening compliance over high-frequency road chatter.\u003c\/p\u003e\n\n\u003ch3\u003ePermanent Corrosion Resistance vs. OEM Chrome\u003c\/h3\u003e\n\u003cp\u003eOriginal BBS chrome-plated steel bolts are notorious for flaking, pitting, and rusting from corrosive metallic brake dust and harsh wheel cleaners. Grade 5 Ti-6Al-4V titanium develops a permanent, natural oxide film that will never rust, tarnish, or suffer galvanic pitting, ensuring your restored show wheels retain their pristine mirror or showroom luster season after season.\u003c\/p\u003e\n\n\u003ch3\u003eKey Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIconic BBS Modular Wheels:\u003c\/strong\u003e BBS RS (e.g., RS001, RS005, RS211), BBS Super RS, BBS LM (Le Mans 2-piece), BBS RC, and BBS RF split wheels.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMulti-Piece Aftermarket Rebuilds:\u003c\/strong\u003e OZ Racing, Work, SSR, and custom forged 3-piece wheel conversions utilizing M7×1.0 hardware.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStepped Lip \u0026amp; Custom Barrel Conversions:\u003c\/strong\u003e 32mm extended length accommodates aftermarket forged outer lips and heavy-duty inner barrels.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications \u0026amp; Dimensions\u003c\/h3\u003e\n\u003cp\u003e\n  \u003cstrong\u003eMaterial:\u003c\/strong\u003e Certified Aerospace Ti-6Al-4V (TC4) Titanium Alloy, Grade 5\u003cbr\u003e\n  \u003cstrong\u003eThread Size:\u003c\/strong\u003e M7\u003cbr\u003e\n  \u003cstrong\u003eThread Pitch:\u003c\/strong\u003e 1.0mm\u003cbr\u003e\n  \u003cstrong\u003eFlange Head Diameter:\u003c\/strong\u003e 12.6mm\u003cbr\u003e\n  \u003cstrong\u003eFlange Head Height:\u003c\/strong\u003e 6.0mm\u003cbr\u003e\n  \u003cstrong\u003eDrive Type:\u003c\/strong\u003e 8mm 12-Point (Bi-Hex) Socket\u003cbr\u003e\n  \u003cstrong\u003eAvailable Lengths:\u003c\/strong\u003e 24.5mm (Standard BBS Spec), 32mm (Extended Spec)\u003cbr\u003e\n  \u003cstrong\u003eAvailable Finishes:\u003c\/strong\u003e Natural Titanium, PVD Vacuum-Coated Gold, Rainbow, Burn Blue, PVD Deep Black\n\u003c\/p\u003e\n\n\u003ch3\u003eWheel Assembly \u0026amp; Torque Guidelines\u003c\/h3\u003e\n\u003cp\u003eBefore assembly, ensure rim mating surfaces and silicone seal channels are immaculately clean. Apply a small drop of medium-strength thread locker or anti-seize paste to the leading threads. Always tighten bolts using an 8mm 12-point socket in a progressive criss-cross star pattern across 3 stages, finishing at 18–22 N·m (13–16 lb-ft) or the wheel manufacturer's specific rebuild torque. Always check torque with a calibrated manual torque wrench. To understand how peripheral rotating mass impacts vehicle performance, read our \u003ca href=\"\/vi-vn\/blogs\/technical-resources\/titanium-wheel-bolts-grade-5-ti-6al-4v-unsprung-weight-reduction\"\u003eTitanium Wheel Bolts \u0026amp; Unsprung Weight Guide\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003ePrice is for 1 bolt. (Typically 30 to 40 bolts required per wheel).\u003c\/em\u003e\u003c\/p\u003e","brand":"Tianswer","offers":[{"title":"Rainbow \/ M7×24.5mm","offer_id":45886929666305,"sku":"TS-M7-12PI-245-RB","price":6.87,"currency_code":"USD","in_stock":true},{"title":"Rainbow \/ M7×32mm","offer_id":45886929699073,"sku":"TS-M7-12PI-32-RB","price":8.02,"currency_code":"USD","in_stock":true},{"title":"Titanium \/ M7×24.5mm","offer_id":45886929535233,"sku":"TS-M7-12PI-245-TI","price":6.67,"currency_code":"USD","in_stock":true},{"title":"Titanium \/ M7×32mm","offer_id":45886929568001,"sku":"TS-M7-12PI-32-TI","price":7.78,"currency_code":"USD","in_stock":true},{"title":"Gold \/ M7×24.5mm","offer_id":45886929600769,"sku":"TS-M7-12PI-245-GD","price":6.87,"currency_code":"USD","in_stock":true},{"title":"Gold \/ M7×32mm","offer_id":45886929633537,"sku":"TS-M7-12PI-32-GD","price":8.02,"currency_code":"USD","in_stock":true},{"title":"Burn Blue \/ M7×24.5mm","offer_id":45886929731841,"sku":"TS-M7-12PI-245-BB","price":6.87,"currency_code":"USD","in_stock":true},{"title":"Burn Blue \/ M7×32mm","offer_id":45886929764609,"sku":"TS-M7-12PI-32-BB","price":8.02,"currency_code":"USD","in_stock":true},{"title":"Black \/ M7×24.5mm","offer_id":45886929797377,"sku":"TS-M7-12PI-245-BK","price":6.87,"currency_code":"USD","in_stock":true},{"title":"Black \/ M7×32mm","offer_id":45886929830145,"sku":"TS-M7-12PI-32-BK","price":8.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0723\/1740\/3393\/files\/M7x1x32_12_BBS_-3.jpg?v=1744271825"},{"product_id":"titanium-bolt-m7-32mm-bi-hex-12point-flange-bolts-for-car-wheel-hub-screws-bbs-specific-pitch-1mm-by-tianswer","title":"Grade 5 Titanium M7 12-Point Outer Flange Wheel Hub Bolt for BBS Wheels","description":"\u003cp\u003e\u003cstrong\u003ePrecision CNC-machined Grade 5 Ti-6Al-4V titanium M7 12-Point Outer Bi-Hex Flange Wheel Hub Bolt engineered for BBS \u0026amp; Modular Multi-Piece Wheel Rebuilding.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eAerospace Grade 5 Ti-6Al-4V \u0026amp; Precision CNC Rolled Threads\u003c\/h3\u003e\n\u003cp\u003eManufactured from certified aerospace-grade Ti-6Al-4V (Grade 5, TC4) titanium alloy, delivering a minimum tensile strength of 950 MPa—matching Class 10.9 hardened steel while reducing unsprung and rotational mass by ~45% (density: 4.43 g\/cm³). Unlike commercial cut threads that sever internal metal grain flow lines, our threads are precision CNC-rolled under continuous mechanical pressure. This cold-work process densifies the thread root grain structure, significantly increasing fatigue resistance and preventing shear failure under high-vibration racing, engine, and chassis dynamics.\u003c\/p\u003e\n\n\u003ch3\u003eIntegrated Head Geometry \u0026amp; High-Torque Drive Architecture\u003c\/h3\u003e\n\u003cp\u003eDesigned with a precision-machined 12-Point Outer Bi-Hex Flange Wheel Hub Bolt and 12-Point (Bi-Hex) 8mm Socket, this fastener delivers superior contact surface area and load distribution across aluminum and composite mounting surfaces. The high-engagement drive virtually eliminates tool cam-out, slipping, and head rounding common with inferior hardware during high-torque assembly.\u003c\/p\u003e\n\n\u003ch3\u003eComprehensive Engineering Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade:\u003c\/strong\u003e Certified Ti-6Al-4V (Grade 5 \/ TC4) Titanium Alloy\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTensile Strength:\u003c\/strong\u003e ≥ 950 MPa (Class 10.9 steel equivalence)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eYield Strength (0.2% Offset):\u003c\/strong\u003e ≥ 880 MPa\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDensity:\u003c\/strong\u003e 4.43 g\/cm³ (~45% lighter than OEM steel hardware)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard \u0026amp; Pitch:\u003c\/strong\u003e M7 (Pitch: 1.0mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Manufacturing Method:\u003c\/strong\u003e Precision CNC Rolled (Fatigue-Resistant Grain Flow)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrive Specification:\u003c\/strong\u003e 12-Point (Bi-Hex) 8mm Socket\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailable Sizes \/ Lengths:\u003c\/strong\u003e 32mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Natural Polished Titanium, PVD Vacuum-Coated Gold, Rainbow, Burn Blue, PVD Deep Black\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eVehicle \u0026amp; Application Fitment Guide\u003c\/h3\u003e\n\u003cp\u003eAlways verify your original fastener dimensions, thread pitch, and thread engagement requirements before purchasing:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRecommended Applications:\u003c\/strong\u003e Modular 2-piece and 3-piece wheel hub assembly, specifically BBS RS, RC, LM, OZ Racing, and custom split rims.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight Optimization:\u003c\/strong\u003e Up to 45% reduction in unsprung and rotational mass, improving handling response, suspension rebound control, and vibration damping.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRecommended Torque Values (Dry vs. Lubricated K-Factor)\u003c\/h3\u003e\n\u003cp\u003eTitanium fasteners exhibit different friction dynamics compared to zinc-plated steel. Tightening torque must account for thread friction:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDry Assembly (K ≈ 0.20):\u003c\/strong\u003e 15–18 N·m (11–13.3 lb-ft). Recommended only when non-removable threadlocker is explicitly mandated.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLubricated Assembly with Anti-Seize (K ≈ 0.15):\u003c\/strong\u003e 12–14 N·m (8.8–10.3 lb-ft). \u003cem\u003eMandatory recommendation for titanium. When using anti-seize paste, reduce the factory dry torque by 20–25% to avoid over-stretching the fastener shank.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTo calculate exact preload tension for your specific assembly, read our technical whitepaper: \u003ca href=\"\/vi-vn\/blogs\/technical-resources\/wet-torque-vs-dry-torque-titanium-fasteners-k-factor-preload-guide\"\u003eWet Torque vs. Dry Torque on Titanium Fasteners: K-Factor \u0026amp; Preload Guide\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eCritical Installation \u0026amp; Anti-Galling Notice\u003c\/h3\u003e\n\u003cp\u003eTitanium naturally forms an oxide layer that can cause severe adhesive wear (galling or cold-welding) when mated against aluminum or stainless steel threads under pressure. \u003cstrong\u003eAlways apply a thin, uniform coating of high-temperature anti-seize paste (copper, aluminum, or MoS2-based) to the bolt threads before installation.\u003c\/strong\u003e Never use pneumatic or battery-powered impact guns; always torque manually using a calibrated torque wrench. For failure prevention techniques, consult our \u003ca href=\"\/vi-vn\/blogs\/technical-resources\/why-do-titanium-screws-strip-the-reddit-approved-guide-to-preventing-ti-6al-4v-bolt-failure\"\u003eTitanium Fastener Drive Stripping \u0026amp; Failure Teardown\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdiv itemscope itemtype=\"https:\/\/schema.org\/FAQPage\"\u003e\n  \u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n    \u003ch4 itemprop=\"name\"\u003eCan I directly replace OEM steel bolts with this Grade 5 titanium fastener?\u003c\/h4\u003e\n    \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n      \u003cp itemprop=\"text\"\u003eYes. Grade 5 Ti-6Al-4V provides a tensile strength of ≥950 MPa and yield strength of ≥880 MPa, meeting the tensile performance of Class 10.9 steel while shedding 45% of the weight and offering permanent atmospheric corrosion resistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n    \u003ch4 itemprop=\"name\"\u003eWill titanium fasteners cause galvanic corrosion with aluminum or carbon fiber?\u003c\/h4\u003e\n    \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n      \u003cp itemprop=\"text\"\u003eTitanium is galvanic-neutral against carbon fiber, eliminating the pitting corrosion common with aluminum-to-carbon joints. When threaded into aluminum in conductive saline environments, applying anti-seize paste provides electrical barrier isolation, completely preventing galvanic corrosion. Read our \u003ca href=\"\/vi-vn\/blogs\/technical-resources\/do-titanium-bolts-corrode-carbon-fiber-aluminum-galvanic-corrosion-guide\"\u003eGalvanic Corrosion \u0026amp; Isolation Guide\u003c\/a\u003e for details.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n    \u003ch4 itemprop=\"name\"\u003eWhy is anti-seize paste mandatory for titanium fasteners?\u003c\/h4\u003e\n    \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n      \u003cp itemprop=\"text\"\u003eTitanium has a high friction coefficient and galling affinity. Anti-seize paste stabilizes thread friction, ensures consistent clamping preload at target torque, and prevents cold-welding during future disassembly.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Tianswer","offers":[{"title":"Rainbow \/ M7x32mm","offer_id":45886950342913,"sku":"TS-M7-12PB-32-RB","price":3.1,"currency_code":"USD","in_stock":true},{"title":"Titanium \/ M7x32mm","offer_id":45886950277377,"sku":"TS-M7-12PB-32-TI","price":2.5,"currency_code":"USD","in_stock":true},{"title":"Gold \/ M7x32mm","offer_id":45886950310145,"sku":"TS-M7-12PB-32-GD","price":3.1,"currency_code":"USD","in_stock":true},{"title":"Burn Blue \/ M7x32mm","offer_id":45886950375681,"sku":"TS-M7-12PB-32-BB","price":3.1,"currency_code":"USD","in_stock":true},{"title":"Black \/ M7x32mm","offer_id":45886950408449,"sku":"TS-M7-12PB-32-BK","price":3.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0723\/1740\/3393\/files\/M7x32_12_BBS_-5.jpg?v=1744274089"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0723\/1740\/3393\/collections\/M7x1x32_12_BBS_-4.jpg?v=1789479507","url":"https:\/\/tianswer.com\/vi-vn\/collections\/m7-titanium-bolt.oembed","provider":"Tianswer","version":"1.0","type":"link"}