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Harken 2148 40mm Carbo T2 Loop Soft-Attach Block

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Harken 40 mm Carbo T2 Loop Soft-Attach Block

The high-strength composite T2™ is the first block with no metal shackles or rivets. It is used for traveler controls, mainsheets and vangs, cascades, bridles, and other systems where small, lightweight blocks are called for. The T2 can be tied, spliced, or lashed to almost anything. A length of Spectra® line is included.

The composite sheave spins on ball bearings with curved bearing races for low-friction rolling. Composite sideplates are fiber-reinforced, high-strength nylon resin. Ball bearings, sheave, and sideplates are UV-stabilized for maximum lifespan.

No knots, splices, or tools are needed. Just slide the loop through the block head and over the anchor post for a secure connection. T2 Loops come in 40 mm and 57 mm single sizes. A SK75 Dyneema® loop is included. Replacement loops available.


  • Sheave Ø (mm) - 40 mm

  • Length (mm) - 57 mm

  • Weight (g) - 26 g

  • Maximum line Ø (mm) - 10 mm

  • Maximum working load (kg) - 220 kg

  • Breaking load (kg) - 544 kg

  • Includes - 2154 loop