Low-profile mastbase Harken halyard lead blocks are
lightweight and can be grouped in a small area
at the mastbase. Flared cheeks prevent chafe on
the halyards.
Part Number: 3123
Specifications
Imperial
Metric
Sheave Dia.
4"
102 mm
Width
1 5/8"
41 mm
Length
5 1/8"
130 mm
Height
5 1/8"
130 mm
Max Line Dia.
11/16"
18 mm
Weight
24.9 oz
708 gr
Maximum Working Load
11000 lbs
4990 kg
Breaking Load
22000 lbs
9980 kg
HH Fasteners
5/18"
16 mm
"
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