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Harken  |  SKU: HR1988

Harken 57mm Aluminum Fixed Mastbase Block

Sale price $236.95 Regular price $274.65

Pickup available at 1830 East Interstate 30

Usually ready in 24 hours

DELIVERY AND RETURN INFO

Harken 57mm Aluminum Fixed Mastbase Block

Low-profile mastbase halyard lead blocks are lightweight and can be grouped in a small area at the mastbase.

Technical Description

Sheave Ø (mm) 57 mm
Sheave Ø (in) 2 1/4 in
Length (mm) 81 mm
Length (in) 3 3/16 in
Width (mm) 35 mm
Width (in) 1 3/8 in
Height (mm) 73 mm
Height (in) 2 7/8 in
Weight (g) 175 g
Weight (oz) 6.2 oz
Maximum line Ø (mm) 10 mm
Maximum line Ø (in) 3/8 in
Fasteners (mm) 6 RH mm
Fasteners (in) 1/4 RH in
Maximum working load (kg) 1136 kg
Maximum working load (lb) 2500 lb
Breaking load (kg) 2273 kg
Breaking load (lb) 5000 lb
Number of fasteners 3