Mast-Base Halyard Lead Block
High-load bearing system has PTFE-composite bushing and side-load balls. Hardkote-anodized aluminum sheave for additional strength.
Mfg No. 1988
Description Mastbase block / fixed
Sheave Diameter 2-1/4" (57mm)
Dimensions (W x L x H) 1-3/8" x 3-3/16" x 2-7/8" (35 x 81 x 73mm)
Max Line Diameter 3/8" (10mm)
Max Working Load 2,500 Lbs (1,136kg)
Breaking Load 5,000 Lbs (2,273kg)
Fasteners 1/4" (6mm) FH
Weight 6.2 oz. (175g)