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Mastbase Halyard Lead

125 mm Stainless Steel Mastbase Block — Swivel

Part No. C10721
  Not available on-line. Please contact Harken.
Sheave Ø (mm)125 mm
Sheave Ø (in)4 15/16 in
Maximum line Ø (mm)19 mm
Maximum line Ø (in)3/4 in
Maximum working load (kg)7000 kg
Maximum working load (lb)15435 lb

Teardrop blocks are ideal for use as mastbase leads and for other applications where limited articulation or direct attachment is desired.

Pivoting versions feature a hinged construction providing crew a fair lead to a choice of winches for halyard and line controls.

The ultralight composite bearing system (ULC) rides on a heat-treated stainless steel inner race to handle extremely high loads.

Sheave Ø (mm)125 mm
Sheave Ø (in)4 15/16 in
Weight (kg)4.114 kg
Weight (lb)9.07 lb
Maximum line Ø (mm)19 mm
Maximum line Ø (in)3/4 in
Maximum working load (kg)7000 kg
Maximum working load (lb)15435 lb
Breaking load (kg)14000 kg
Breaking load (lb)30870 lb
EPS: C10721.eps (open/save)
High-res JPG: C10721.jpg (open/save)
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