{"product_id":"curt-2-5-16-chrome-trailer-ball-40005-7-500-lb-capacity-nickel-chrome-finish","title":"CURT 2-5\/16\" Chrome Trailer Ball 40005 — 7,500 lb Capacity, Nickel-Chrome Finish","description":"\u003cp\u003e\u003cstrong\u003eCURT's 2-5\/16-inch chrome trailer ball (model 40005) is a heavy-duty tow ball engineered to handle up to 7,500 pounds for secure receiver-style towing.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eBuilt for drivers who pull heavier loads, the CURT 40005 combines hot-forged steel construction with a nickel-chrome finish and precise shank dimensions so it fits standard 2-5\/16\" couplers and mounts. Designed, tested, and finished for durability, this tow ball balances rugged strength with corrosion resistance to stay dependable across seasons and road conditions.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this trailer ball match with my hitch and coupler?\u003c\/h3\u003e\n\n\u003cp\u003eThe CURT 40005 is sized to mate with couplers made for a 2-5\/16\" ball, and its 1\" diameter, 2-1\/8\" shank is compatible with common class 5 ball mounts. Always verify the lowest-rated component in your towing setup — vehicle, hitch, mount, or coupler — before towing. Installation requires proper torque to secure the ball and prevent loosening under load.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eBall diameter: 2-5\/16\" to fit standard 2-5\/16\" couplers\u003c\/li\u003e\n  \u003cli\u003eShank: 1\" diameter, 2-1\/8\" length for secure mounting\u003c\/li\u003e\n  \u003cli\u003eTorque spec: 250 lb-ft recommended for final tightening\u003c\/li\u003e\n  \u003cli\u003eIncludes: zinc-plated hex nut and helical lock washer for secure fit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat towing capacity and safety standards does this ball meet?\u003c\/h3\u003e\n\n\u003cp\u003eThis model is rated for a 7,500 lb gross trailer weight and is manufactured to meet U.S. VESC specifications, reflecting industry testing for strength and reliability. The rating assumes the rest of the towing system (hitch, vehicle, trailer) supports that weight. For safe operation, choose components rated at or above the intended load and follow routine inspections.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eGross trailer weight rating: 7,500 lb\u003c\/li\u003e\n  \u003cli\u003eManufactured from hot-forged steel for consistent strength\u003c\/li\u003e\n  \u003cli\u003eTested to U.S. VESC standards for performance verification\u003c\/li\u003e\n  \u003cli\u003eUse only with appropriately rated hitch, mount, vehicle, and coupler\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the finish and hardware protect against corrosion?\u003c\/h3\u003e\n\n\u003cp\u003eThe CURT 40005 uses a nickel-chrome plating that shields the ball from moisture, road salts, and abrasive grime, slowing corrosion and maintaining a smooth mating surface. It ships with a zinc-plated hex nut and helical lock washer to resist rust at the attachment point and to preserve a firm mechanical connection through changing conditions.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eNickel-chrome finish for long-lasting surface protection\u003c\/li\u003e\n  \u003cli\u003eZinc-plated hex nut included to combat rust at the fastener\u003c\/li\u003e\n  \u003cli\u003eHelical lock washer prevents loosening from vibration\u003c\/li\u003e\n  \u003cli\u003eSmooth plated ball surface helps maintain secure coupler contact\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat installation and maintenance steps keep it reliable?\u003c\/h3\u003e\n\n\u003cp\u003eInstall the ball using the specified 250 lb-ft torque and the included nut and lock washer to ensure a secure connection. Periodic inspection—checking torque, plating condition, and thread integrity—prevents premature wear and reduces the risk of failure. Replace the ball if plating is compromised or if any deformity appears.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eTorque to 250 lb-ft during installation for proper clamping\u003c\/li\u003e\n  \u003cli\u003eInspect threads, nut, and ball surface before each towing trip\u003c\/li\u003e\n  \u003cli\u003eClean and lightly lubricate threads to ease future removal\u003c\/li\u003e\n  \u003cli\u003eReplace if plating chips, or if wear or thread damage is present\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The CURT 40005 2-5\/16\" chrome trailer ball is aimed at owners of class 5 hitches and heavy-duty towing rigs—people who haul dump trailers, toy haulers, dual-axle utility trailers, larger RVs, or similar loads up to 7,500 pounds. If your vehicle and hitch package support class 5 towing and you need a durable, VESC-tested ball with corrosion resistance, this CURT tow ball is a practical, work-ready choice.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What is the towing capacity of the CURT 40005 trailer ball?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The CURT 40005 is rated for a gross trailer weight of 7,500 pounds; confirm your hitch and vehicle ratings match or exceed this before towing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What shank size does this ball require for mounting?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The shank measures 1\" diameter and 2-1\/8\" length; it includes a zinc-plated nut and helical lock washer for secure installation.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"CURT","offers":[{"title":"Default Title","offer_id":55161017893207,"sku":"B0009T8HRA","price":45.7,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/curt-40005-front-view.jpg?v=1790321019","url":"https:\/\/britishgarage.co.uk\/products\/curt-2-5-16-chrome-trailer-ball-40005-7-500-lb-capacity-nickel-chrome-finish","provider":"British Garage","version":"1.0","type":"link"}