HARKEN 100 mm Aluminum Black Magic Footblock, 3249 Product Type_Shackles and versatile block with a

and versatile block with a 5/8" diameter sheave and a very high breaking load

and accurate to within 1% of maximum working load

These durable sheaves are made of 6061-T6 aluminum and are well-suited for masthead and steering installations

30 Amp Locking Plugs and Connectors

HARKEN 100 mm Aluminum Black Magic Footblock, 3249 Product Type_Shackles and versatile block with aUse footblocks to redirect lines on the deck. Footblocks with lock offs temporarily secure sheets. Either metric or imperial flathead fasteners may be used for mounting and are not exposed. Sideplates and sheaves are Hard Lube anodized for maximum UV protection and a smooth surface. The center cage keeps Torlon roller bearings separated and parallel to reduce friction; the block carries some of the highest loads imposed by running rigging. Torlon is a