Blocks
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29mm Carbo stand-up blockSKU: HK349The 29 mm Harken Carbo stand-up block can be used for lines up to 8mm. This block has a max working load of 150 kg, a breaking load of 454 kg and weighs just 31 grams. Learn More
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Double upright Bullet Block 5mm (#10) RH FastenersSKU: HK220Low-friction Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A range of styles lets these blocks adapt to almost all control line applications. Learn More
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Upright Bullet Block 5mm (#10) RH FastenersSKU: HK096Low-friction Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A range of styles lets these blocks adapt to almost all control line applications. Learn More
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Wire upright Bullet Block 5mm (#10) RH FastenersSKU: HK108Low-friction Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A range of styles lets these blocks adapt to almost all control line applications. Wire Bullet blocks use roller bearings to carry higher loads and feature hardcoat-anodized PTFE impregnated aluminum sheaves for strength and corrosion resistance. Learn More
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Element 45mm Block fiddle / swivel / becketSKU: HK6233The new Element block. The name hints at its essence: everything that doesn’t contribute durability or strength is stripped away. The result is an economical block that does a Harken job. Learn More
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Element 45mm Block fiddle / 150 Cam-Matic/swivel/becketSKU: HK6234The new Element block. The name hints at its essence: everything that doesn’t contribute durability or strength is stripped away. The result is an economical block that does a Harken job. Learn More
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30mm Ball Bearing Stand-Up BlockSKU: SE40310112RBALL BEARING BLOCKS
Ball bearing blocks are used where the loads are more moderate and dynamic. The ball bearings provide for good sheave rotation with the lowest possible friction. Available in 20, 30, 40 and 60 mm sheave diameters. Learn More -
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Series 30 BB Orbit Block, Stand Up, Fixed Head RF35141SKU: RF35141Stand up, orbit block, light-weight and versatile Learn More
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Series 40 AP Block, Fiddle BecketSKU: RF41510Captive Lock™ universal head
Slotted pin shackle eliminates fouled lines
Snap fit removable becket pin
Spare parts - RF41010 Replacement Becket Pin, RF150 Shackle Learn More -
Series 40 AP Block, Fiddle, Becket, CleatSKU: RF41530Captive Lock™ universal head
Slotted pin shackle eliminates fouled lines
Snap fit removable becket pin
Multi-position cleat arm
Learn More -
Ronstan Single Lead Block RF917SKU: RF917Single upright. Typically used in dinghy spars for control lines Learn More