Blocks
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75mm Carbo automatic ratchet blockSKU: HK2680Harken 75mm Carbo automatic ratchet block. Great block for big boats, mainly used for sheeting systems and trim lines. Can be used for lines up to 12mm and weights 238 gram. Has a max workload of 341 kg and a breaking strength of 1361 kg. Learn More
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75mm Carbo automatic ratchet block with becketSKU: HK2681Harken 75mm Carbo automatic ratchet block with becket. Great block for big boats, mainly used for sheeting systems and trim lines. Can be used for lines up to 12mm and weighs 255 gram. Has a max workload of 341 kg and a breaking strength of 1361 kg. Learn More
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Series 40 BB Orbit Block, Single, Becket, Swivel Head RF45110SKU: RF45110Swivel shackle head for unlimited block rotation.
Stainless steel shackle head and compatibility with sharp fixing points.
Ultra low profile integrated becket. Learn More -
Series 40 RTA Orbit Block,Auto, Single, Swivel HeadSKU: RF46100Fully Automatic load sensing ratchet engagement. Swivel shackle head for unlimited block rotation. Stainless steel shackle head and compatibility with sharp fixing points. Learn More
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Series 40 RTM OrbitBlock,Manual, Single, SwivelSKU: RF46100MNow you can enjoy the flexibility of setting up your fitout exactly to suit yourself. Ronstan is the only company that offers a 40mm ratchet block with both auto and manual engagement models* Learn More