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Harken Products

Harken 40mm Carbo Block (HK2636)

£31.13 | Normal Price: £34.59 | You Save: £3.46 (10%)


Harken 40mm Carbo Block Swivel

Low-friction Carbo AirBlocks® are lightweight, strong, reliable—and affordable. Companions to the popular Harken® Black Magic® line, these small, compact blocks have very high working loads for safe, easy trimming.

Carbo AirBlocks® are 60% stronger and 30% lighter than Harken's Classic blocks. Use the 40 mm Carbo for jib and mainsheet systems on high-performance dinghies and for loaded control lines on small keelboats.

The nylon-resin sideplates are densely packed with long-glass fibers for a compact block with a high strength-to-weight ratio. Sheaves spin on high-load ball bearings with fitted races for low-friction operation.

Ball bearings, sheave, and sideplates are UV-stabilized with carbon black for maximum protection.

Sheave Ø: 40 mm

Length: 86 mm

Weight: 44 g

Shackle pin Ø: 4 mm

Maximum line Ø: 10 mm

Maximum working load: 220 kg

Breaking load: 735 kg


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