37mm Blocks - Series 3

Schaefer Marine Series 3, 37mm blocks are strong high-quality metal construction.  Built to take the punishment associated with running rigging mounted on the deck or spars. Excellent for use on small cruisers, daysailors and high-performance racing dinghies.

3 Series Blocks use brilliant Stainless Steel or Tough, Hardcoat Anodized Aluminium cheeks with UV protected Delrin sheaves to withstand the elements and potential mishaps far longer than brands with plastic cheeks and sheaves.

Mainsheet systems:  boats to 25' (7.6m)

Halyard Leads: boats to 25' (7.6m)

Genoa Leads: boats to 25' (7.6m)

Control Lines: boats to 30' (9.1m)

Common Specifications

Sheave Diameter 1-7/16" (37mm)

Sheave Width: 9/16" (14mm)

Maximum Line Diameter: 7/16" (11mm)

Pin Diameter: 3/16" (5mm)

SWL: 1000lbs (410kg)