THIS LISTING IS FOR A HARKEN/RONSTAN 7:1 HEXA-RATCHET BLOCK AND TACKLE, OR IT CAN ALSO BE USED AS A MAIN SHEET, OR A BOOM VANG. IT COMES WITH APROX 40 FEET OF 5/16 POLYESTER DOUBLE BRAID. THE BLOCKS CONSIST OF A HARKEN 57MM BALL BEARING RATCHET BLOCK WITH ALLOY BALL BEARING 150 CAM CLEAT, AND SWIVEL SHACKLE, AND BECKET ATTACHED TO A RONSTAN TRIPLE 30MM BALL BEARING BLOCK, THE LOWER BLOCK IS A RONSTAN 30MM TRIPLE B. BLOCK WITH SHACKLE AND BECKET.
THE HARKEN BLOCK WITH CAM CLEAT HAS A SAFE WORK LOAD OF 500 LBS (LIMITED BY CAM CLEAT) BREAK LOAD 2,500 LBS MAX 3/8 LINE. THE RONSTAN 30 MM TRIPLE BLOCKS HAVE A SAFE WORK LOAD OF 1,200 LBS, WITH A BREAK LOAD OF 2,400 AND ACCOMMODATE A MAX LINE OF 5/16.Ball Bearing series 30 bb boast the highest strength-to-weight ratio available. This is achieved through all-composite reinforced polymer materials and multiple attachment options. Their precision design provides the optimum number of ball bearings for minimum friction, while weight reduction is achieved through the use of fiber-reinforced composites in the block head, cleat arms and beckets. Features:Light weightHighest working load in its classSecure, versatile & secure attachmentLow profile & compactMaterials:Sheave - High compression strength carbon black AcetalBall Bearings - High compression strength AcetalFrame/Cheeks - Toughened, glass-fiber-reinforced NylonLink - UV stabilized, multi-strand impregnated SK75 Dyneema®Applications:Mainsheet systems & spinnaker sheets on dinghies to 16 ft. (5m)Halyard, vang & backstay applications on boats to 16 ft. (5m)Control line applications on larger yachtsSpecifications:Sheave Diameter - 1-3/16" (30mm)Max Rope Diameter - 5/16" (8mm). I HAVE A LARGE VARIETY OF MAINSHEET SYSTEMS CURRENTLY LISTED SO PLEASE CHECK MY OTHER LISTINGS FOR ADDITIONAL SAILBOAT HARDWARE. The item "HARKEN 71 57MM HEXA RATCHET MAIN SHEET, VANG, BLOCK&TACKLE, PULLEYS With40' LINE" is in sale since Wednesday, October 2, 2019. This item is in the category "eBay Motors\Parts & Accessories\Boat Parts\Sailing Hardware & Gear\Other Sailing Hardware & Gear". The seller is "rags4jc" and is located in Morro Bay, California. This item can be shipped to North, South, or Latin America, all countries in Europe, Australia.