Harken Unit 1 MKIV 29mm Outboard Stanchion Lead Block AssemblySheave Ø: 1 1/8 in. (29mm)
Harken® recommends equipping every system with Carbo lead blocks for safe furling from the cockpit. The 7403 outboard assembly allows furling line to travel outboard of the stanchion to keep the sidedeck clear. Block mounts with a strong four-screw clamp without removing the stanchion or lifelines.
Weight: 3 oz. (85 g)
Maximum line Ø: 3/8 in. (10 mm)
Use with: 1 in. (25 mm) stanchions