Description
Low-profile mastbase halyard lead blocks are lightweight and can be grouped in a small area at the mastbase.
Sheave Ø(mm)102 mm
Sheave Ø(in)4 in
Length (mm)130 mm
Length (in)5 1/8 in
Width (mm)41 mm
Width (in)1 5/8 in
Height (mm)130 mm
Height (in)5 1/8 in
Weight (g)708 g
Weight (oz)24.9 oz
Maximum line Ø(mm)18 mm
Maximum line Ø(in) 11/16 in
Number of fasteners2
Fasteners (mm)16 HH mm
Fasteners (in)5/8 HH in
Maximum working load (kg)4990 kg
Maximum working load (lb)11000 lb
Breaking load (lb)22000 lb
Breaking load (kg)9980 kg
Sheave Ø(in)4 in
Length (mm)130 mm
Length (in)5 1/8 in
Width (mm)41 mm
Width (in)1 5/8 in
Height (mm)130 mm
Height (in)5 1/8 in
Weight (g)708 g
Weight (oz)24.9 oz
Maximum line Ø(mm)18 mm
Maximum line Ø(in) 11/16 in
Number of fasteners2
Fasteners (mm)16 HH mm
Fasteners (in)5/8 HH in
Maximum working load (kg)4990 kg
Maximum working load (lb)11000 lb
Breaking load (lb)22000 lb
Breaking load (kg)9980 kg
Product Details
We usually dispatch within 2–8 days.
In a hurry? If the item’s in stock, we might be able to send it out the same day — just let us know.
Not the Right Fit? We’ve Got You.
If your boating gear isn’t quite right — in size, fit, or feel — you can return it within 30 days for a full refund or exchange. No stress, no risk.