{"product_id":"harken-40mm-carbo-air-double-fixed-block-with-becket-2643","title":"Harken 40mm Carbo Air Double Fixed Block with Becket 2643","description":"\u003cp\u003e\u003cstrong\u003e40mm Carbo Air Double Fixed Block with Becket\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eLow-friction Carbo Air blocks are lightweight, strong, reliableand affordable. Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe, easy trimming.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave  (mm)40 mm\u003c\/li\u003e\n\u003cli\u003eSheave  (in)1 9\/16 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)440 kg\u003c\/li\u003e\n\u003cli\u003eMaximum working load (lb)970 lb\u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:m2lsl5xp ---\u003e\n\u003cp\u003e\u003cstrong\u003eHarken 40mm Carbo Air Double Fixed Block with Becket\u003c\/strong\u003e is a compact, lightweight sailboat block designed for smooth, dependable line handling and easy trimming. Part number 2643 features two sheaves and a becket, making it a practical choice for sailing control systems that require efficient routing and secure line management.\u003c\/p\u003e\u003cp\u003eBuilt as part of Harken’s Carbo Air block range, this double fixed block combines low-friction operation with a strong working load capacity. Its compact design makes it suitable for a variety of onboard trimming and control applications, while support for line up to 3\/8 inch provides compatibility with commonly used sailing lines within the stated specification.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDouble fixed block:\u003c\/strong\u003e Uses two sheaves to help route and manage sailing control lines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated becket:\u003c\/strong\u003e Provides an additional line attachment point for rigging applications that require one.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-friction Carbo Air design:\u003c\/strong\u003e Supports smooth line movement for easier trimming.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight and compact construction:\u003c\/strong\u003e Helps provide efficient hardware for space-conscious sailboat rigging systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh working load:\u003c\/strong\u003e Rated for a maximum working load of 970 pounds.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eProduct Details:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Harken\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e 2643\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e Double fixed block with becket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSheave size:\u003c\/strong\u003e 1 9\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum line size:\u003c\/strong\u003e 3\/8 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum working load:\u003c\/strong\u003e 970 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e Carbo Air\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eChoose the Harken 40mm Carbo Air Double Fixed Block with Becket for reliable, low-friction line handling in sailing control and trimming applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSEO Meta Description:\u003c\/strong\u003e Harken 40mm Carbo Air Double Fixed Block with Becket 2643 delivers lightweight, low-friction line handling for sailing control systems.\u003c\/p\u003e\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }\u003c\/style\u003e\n\u003ctable class=\"productattributes\"\u003e\n\u003cthead\u003e\u003ctr\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003eTruck Freight: No\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eOversized: No\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cbr\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":44937128542297,"sku":"79740","price":89.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0623\/1818\/2489\/files\/79740XL.jpg?v=1789839455","url":"https:\/\/www.marinepartsonly.com\/products\/harken-40mm-carbo-air-double-fixed-block-with-becket-2643","provider":"Marine Parts Only","version":"1.0","type":"link"}