Harken 40mm
Carbo Stand Up AirBlock

Carbo AirBlocks® are 60% stronger and 30% lighter than our 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 UV stabilized with black additive for maximum protection.

Use for:
Main/jib sheets
Mainsheet fine-tune
Control lines

Description Stand-up/fixed*
Sheave dia. (in) 1 9/16
Length (in) 2 3/4
Weight w/shackle (oz) 1.7
Shackle pin dia. (in) -
Max. line dia. (in) 3/8
Max. working load (lb) 485
Breaking load (lb) 1620

Harken 40 mm Stand-up Block
#HAR2652 List Price $35.65Only $31.37