Harken 57mm Aluminum ESP Block — Swivel, Becket 747 Fastener circle (mm)37 mm

Fastener circle (mm)37 mm

Full system weight (lb)12

low-friction wire blocks carry wire halyards and high-strength control lines on boats of all sizes

stains and oxidation and restores color without aggressive scrubbing

Sheave Ø (mm)29 mm

Harken 57mm Aluminum ESP Block — Swivel, Becket 747 Fastener circle (mm)37 mmPart No. 6094 Cruising ESP blocks complement our existing blocks in looks and function, but are simpler in design and construction. Sheaves feature sleeve bearings to handle high static loads and are ideal for halyards or limited purchase systems on cruising boats. Sheave (mm)57 mm Sheave (in)2 1 4 in Length (mm)170 mm Length (in)6 11 16 in Weight (g)255 g Weight (oz)9 oz Shackle pin (mm)8 mm Shackle pin (in)5 16 in Maximum line (mm)16 mm Maximum line