{"product_id":"harken-57mm-carbo-quad-swivel-block-lightweight-and-high-load-marine-hardware","title":"Harken 57mm Carbo Quad Swivel Block - Lightweight and High-Load Marine Hardware","description":"\u003cp\u003e\u003cstrong\u003e57mm Carbo Quad Block - Swivel\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eLow-friction Carbo Air blocks are lightweight, strong, reliableand affordable. Companions to our popular Harken Big Boat blocks, these small, compact blocks have very high working loads for safe, easy trimming.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave  (mm) 57 mm\u003c\/li\u003e\n\u003cli\u003eSheave  (in) 2 1\/4 in\u003c\/li\u003e\n\u003cli\u003eMaximum line  (mm) 10 mm\u003c\/li\u003e\n\u003cli\u003eMaximum line  (in) 3\/8 in\u003c\/li\u003e\n\u003cli\u003eMaximum working load (kg) 1080 kg\u003c\/li\u003e\n\u003cli\u003eMaximum working load (lb) 2380 lb\u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:m2lumZRk ---\u003e\n\u003cp\u003eThe Harken 57mm Carbo Quad Swivel Block is an essential component for sailboat rigging, offering a combination of lightweight design and exceptional strength. Made from high-quality Carbo Air material, this low-friction block is engineered to deliver reliable performance under demanding conditions. Its compact size and high working load capacity make it an ideal choice for safe, efficient sail trimming and line management on both small and large vessels. Designed to be a dependable companion to Harken's larger boat blocks, this swivel block ensures smooth operation and durability in challenging marine environments.\u003c\/p\u003e\u003cp\u003eThe sheave measures 2 1\/4 inches in diameter, accommodating line diameters up to 3\/8 inch (10 mm). With a maximum working load of 2,380 pounds (1,080 kg), it provides robust support for high-tension applications. The swivel feature facilitates easy line adjustment and reduces wear on lines and fittings, enhancing overall system longevity. Its lightweight construction does not compromise strength, making it suitable for use where weight savings are critical, such as racing or performance cruising.\u003c\/p\u003e\u003cp\u003eBuilt with Harken's renowned quality standards, this block combines innovative materials with precise engineering to ensure smooth operation and long-term reliability. Whether used in halyard setups, control lines, or sheet systems, the Harken 57mm Carbo Quad Swivel Block is a versatile and durable choice for sailors seeking performance and dependability. Its compact design allows for flexible installation options, providing effective line control without adding unnecessary weight to your rigging system.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eSheave diameter: 2 1\/4 inches (57 mm)\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eMaximum line diameter: 3\/8 inch (10 mm)\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eMaximum working load: 2,380 pounds (1,080 kg)\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eLightweight Carbo Air construction for strength and low friction\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSwivel design for easy line adjustment and reduced wear\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCompact size suitable for various rigging configurations\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eReliable performance in demanding marine environments\u003c\/li\u003e\u003c\/ul\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":44529024696362,"sku":"88766","price":213.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2285\/8794\/files\/88766XL.jpg?v=1783058361","url":"https:\/\/atticusgoods.com\/products\/harken-57mm-carbo-quad-swivel-block-lightweight-and-high-load-marine-hardware","provider":"Atticus Goods","version":"1.0","type":"link"}