{"product_id":"0-63-bolt-kit-3-bolt-install-for-coupler","title":"0.63 Bolt Kit 3 – Bolt Install for Coupler","description":"\u003cp\u003eEnsure dependable mounting of your trailer coupler or tow ring using the \u003cstrong\u003e0.63 Bolt Kit 3\u003c\/strong\u003e. Featuring three 5\/8″ Grade 8 bolts with full locking hardware, this kit is engineered for high-stress applications like adjustable channels, OEM production lines, fleet repairs, and DIY installations.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKit Includes: \u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003e2 – 1B10080 Bolts \u003c\/strong\u003e(0.63″, Grade 8, 225 lb-ft torque)\u003c\/li\u003e \u003cli\u003e\u003cstrong\u003e2 – 1T10 Nuts\u003c\/strong\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrong\u003e2 – 4B10 Washers\u003c\/strong\u003e\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eFeatures\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cp\u003e\u003cstrong\u003eHigh-Strength Bolts\u003c\/strong\u003e: Three 5\/8″–11 × 2½″ Grade 8 hex-head bolts, offering superior clamp force and resistance to shear\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003e\u003cstrong\u003eLocking Hardware Included\u003c\/strong\u003e: Each bolt comes with a matching lock nut and flat washer to prevent loosening under vibration\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003e\u003cstrong\u003eDurable Finish\u003c\/strong\u003e: Zinc-plated for corrosion resistance and long service life\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003e\u003cstrong\u003eOEM-Grade Reliability\u003c\/strong\u003e: Kit mirrors specifications of trusted models like the Croft K5825G8 (four-bolt set)\u003c\/p\u003e \u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eSpecifications\u003c\/h3\u003e   \u003ctable\u003e \u003cthead\u003e \u003ctr\u003e \u003cth\u003eComponent\u003c\/th\u003e \u003cth\u003eSpecification\u003c\/th\u003e \u003c\/tr\u003e \u003c\/thead\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eBolt Size\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e5\/8″–11 × 2½″ (Grade 8 hex head)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eBolts: 2 Lock Nuts: 2 Washers: 2\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eWasher Type\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e5\/8″ hardened flat washer\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eFinish\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eZinc-plated (corrosion-resistant)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eHigh-strength alloy steel (Grade 8)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eTorque Rating\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eEquivalent to OEM coupling hardware\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e   \u003ch3\u003eBenefits\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cp\u003e\u003cstrong\u003eExceptional Strength\u003c\/strong\u003e: Grade 8 bolts deliver trusted performance in towing applications\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003e\u003cstrong\u003eSecure \u0026amp; Vibration-Resistant\u003c\/strong\u003e: Lock nuts and washers maintain torque under load\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003e\u003cstrong\u003eConvenient Ready-to-Use Kit\u003c\/strong\u003e: Everything needed in one box—no extras to source\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003e\u003cstrong\u003eFactory-Level Quality\u003c\/strong\u003e: Meets or exceeds standard hardware used by OEMs such as Croft\u003c\/p\u003e \u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eIdeal For\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cp\u003eInstalling or servicing adjustable-channel couplers and lunette rings\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eOEM production requiring consistent, high-grade fasteners\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eShops and DIYers seeking reliable, heavy-duty coupling hardware\u003c\/p\u003e \u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eThis kit fits on coupler part numbers \u0026amp; \u003c\/p\u003e","brand":"Trailer Parts Mart","offers":[{"title":"Default Title","offer_id":52963033579736,"sku":"0.63 Bolt Kit 3","price":22.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0823\/0898\/9144\/files\/01_1000000646_f946f3386061.webp?v=1794459149","url":"https:\/\/trailerproparts.com\/products\/0-63-bolt-kit-3-bolt-install-for-coupler","provider":"Trailer Parts Mart","version":"1.0","type":"link"}