Ronstan Series 20 Single Upright Lead BlockTypically used for halyards at the mast base.
Sheave Ų - 3/4 in.
Max. Rope Ų - 1/4 in.
Max. Cable Ų - in
Fastener Ų - 5/32 in.
M.W.L. - 550 lb.
B. L. - 1210 lb.
Weight - 0.6 oz.
Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers.
Precision molded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance & low friction.
Grade 316 stainless steel ball bearings
UV stabilized Acetal sheave
Grade 316 stainless steel load housing