{"title":"M15","description":null,"products":[{"product_id":"m15-1-5-titanium-hex-slotted-castle-nut-for-motorcycle-automotive","title":"M15 × 1.5 Titanium Hex Slotted Castle Nut for Motorcycle \u0026 Automotive","description":"\u003ch1\u003eProduct Description\u003c\/h1\u003e\n\u003ch3\u003eM15 × 1.5 Titanium Hex Slotted Castle Nut\u003c\/h3\u003e\n\u003cp\u003eDesigned for motorcycle and automotive hardware applications, this S-PARTS \u003cstrong\u003eM15 × 1.5 titanium slotted castle nut\u003c\/strong\u003e combines a precision-machined hex body and castellated top profile with the lightweight and corrosion-resistant properties of Grade 5 titanium.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThread Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM15 × 1.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNut Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHex Slotted Castle Nut \/ Castellated Nut\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e19 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTool Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24 mm socket wrench\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGrade 5 Titanium (Ti-6Al-4V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApprox. 22.7 g\/pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMotorcycle \u0026amp; Automotive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAvailable Colors\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGold, Rainbow, Natural Titanium, Black, Blue, Green, Purple, Candy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eLightweight Titanium, High Strength-to-Weight Ratio\u003c\/h3\u003e\n\u003cp\u003eS-PARTS selects \u003cstrong\u003eGrade 5 titanium alloy (Ti-6Al-4V)\u003c\/strong\u003e, the internationally recognized designation corresponding to the titanium alloy commonly referred to as \u003cstrong\u003eTC4\u003c\/strong\u003e in China.\u003c\/p\u003e\n\u003cp\u003eWorking with a specialized metal material supply chain serving Xi'an's civil aerospace industry, S-PARTS applies strict material selection and laboratory comparison testing to maintain consistent material standards.\u003c\/p\u003e\n\u003cp\u003eAccording to S-PARTS material testing, the selected titanium alloy has an average tensile strength exceeding \u003cstrong\u003e1,050 MPa\u003c\/strong\u003e, above the stated industry benchmark of \u003cstrong\u003e895 MPa\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eCompared with conventional steel hardware, Grade 5 titanium offers an exceptional \u003cstrong\u003estrength-to-weight ratio\u003c\/strong\u003e, delivering high mechanical performance at approximately half the weight of comparable steel components under comparable conditions.\u003c\/p\u003e\n\u003cp\u003eFor motorcycle and automotive enthusiasts looking to reduce hardware weight without giving up the advantages of a high-performance metal, titanium provides an ideal balance of \u003cstrong\u003estrength, light weight, and corrosion resistance\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003ePrecision Forged \u0026amp; CNC Machined\u003c\/h3\u003e\n\u003cp\u003eEach S-PARTS castle nut is formed using a \u003cstrong\u003ecustom-designed hot-forging die\u003c\/strong\u003e before precision CNC machining.\u003c\/p\u003e\n\u003cp\u003eTo maintain dimensional accuracy during the approximately \u003cstrong\u003e650°C hot-forging process\u003c\/strong\u003e, each dedicated forging die is used no more than 300 times before replacement.\u003c\/p\u003e\n\u003cp\u003eThe nut body is then precision-machined using S-PARTS industrial-grade multi-axis CNC equipment. Strict dimensional and thread-tolerance control helps ensure clean machining, precise thread engagement, and consistent fitment.\u003c\/p\u003e\n\u003cp\u003eFrom the external hex profile and castellated top to the threaded section, every detail is carefully machined for a clean and refined finish.\u003c\/p\u003e\n\u003ch3\u003ePVD Vacuum Nitriding Finishes\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eGold, Rainbow, Black, and Blue\u003c\/strong\u003e versions are finished using a \u003cstrong\u003ePVD vacuum nitriding process\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis process creates a dense surface layer that improves surface hardness and resistance to everyday wear and impact while producing a vivid metallic finish.\u003c\/p\u003e\n\u003cp\u003eUnlike conventional paint, the PVD-treated surface is designed for better durability during regular use, helping maintain its appearance through exposure to moisture, road grime, and everyday riding conditions.\u003c\/p\u003e\n\u003ch3\u003eElectrochemically Anodized Titanium Finishes\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eGreen, Purple, and Candy\u003c\/strong\u003e versions use an \u003cstrong\u003eelectrochemical anodizing process\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eRather than relying on conventional dyes, anodizing creates a controlled oxide layer on the titanium surface. The thickness of this oxide layer affects how light is reflected and refracted, producing the distinctive colors characteristic of anodized titanium.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eCandy finish\u003c\/strong\u003e has especially dynamic color variation. Because the final appearance depends on the anodizing process and oxide-layer characteristics, the color distribution is naturally varied and each piece may have its own unique color pattern.\u003c\/p\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\u003cstrong\u003eCandy Color Notice:\u003c\/strong\u003e Due to the nature of the anodizing process, Candy colors are highly variable and may differ from the product images. Each piece has a unique and naturally flowing color pattern.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\u003cstrong\u003eThread Color Notice:\u003c\/strong\u003e Some pieces may have light-colored lines or marks around the threaded area. This is a normal result of the coloring process and does not affect normal use.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eM15 × 1.5\u003c\/strong\u003e precision thread\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e19 mm\u003c\/strong\u003e overall height\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24 mm\u003c\/strong\u003e socket wrench size\u003c\/li\u003e\n\u003cli\u003eApprox. \u003cstrong\u003e22.7 g per piece\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eMade from \u003cstrong\u003eGrade 5 Titanium (Ti-6Al-4V)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eHex body with \u003cstrong\u003eslotted\/castellated top\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh strength-to-weight ratio\u003c\/li\u003e\n\u003cli\u003eExcellent corrosion resistance\u003c\/li\u003e\n\u003cli\u003ePrecision hot-forged and CNC machined\u003c\/li\u003e\n\u003cli\u003eMultiple PVD and anodized color options\u003c\/li\u003e\n\u003cli\u003eDesigned for \u003cstrong\u003emotorcycle and automotive hardware applications\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Note\u003c\/h3\u003e\n\u003cp\u003ePlease verify the \u003cstrong\u003ethread size, pitch, dimensions, and application requirements\u003c\/strong\u003e before purchase.\u003c\/p\u003e\n\u003cp\u003eFor installation, use the appropriate \u003cstrong\u003e24 mm socket wrench\u003c\/strong\u003e and follow the recommended torque specifications for your specific vehicle or component. For safety-critical applications, always follow the vehicle or component manufacturer's installation requirements.\u003c\/p\u003e","brand":"S-PARTS","offers":[{"title":"Gold","offer_id":46091805982911,"sku":"22091901","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Titanium","offer_id":46091806048447,"sku":"22091903","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":46091806081215,"sku":"22091904","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Blue","offer_id":46091806113983,"sku":"22091905","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Green","offer_id":46091806146751,"sku":"22091906","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Purple","offer_id":46091806179519,"sku":"22091907","price":27.99,"currency_code":"USD","in_stock":false},{"title":"Candy","offer_id":46091806212287,"sku":"22091909","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0664\/8037\/3951\/files\/M15x1.5-Titanium-Hex-Slotted-Castle-Nut-for-Motorcycle-_-Automotive-1.jpg?v=1787723147"}],"url":"https:\/\/www.spartsbolts.com\/collections\/m15.oembed","provider":"SPARTSBOLTS","version":"1.0","type":"link"}