Ronstan Series 50 All Purpose Single Upright BlockSheave Ø 2 in. (50mm)
Max. Rope Ø - 1/2 in. (12mm)
Max. Cable Ø - in (mm)
Fastener Ø - 1/4 in. (6mm)
M.W.L. - 1650 lb. (750 kg)
B. L. - 3310 lb. (1500 kg)
Weight - 4.1 oz. (115 g)
Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers.Ideal for high load applications. Wear resistant sheave material, in lightweight, self lubricating polymer, is suitable for use with rope or wire.
Typically used for halyards at the mast base.
UV stabilised acetal sheave
Grade 316 stainless steel load housing