HARKEN 57MM UPRIGHT LEAD BLOCK

The Harken 2.25 in (57 mm) blocks are compact and lightweight, with fast trim and release under high or low loads. Perfect for dinghies, scows, beachcats and iceboats, as well as small offshore racers and cruisers.

Sheave Ø (mm)
57 mm

Sheave Ø (in)
2 1/4 in

Length (mm)
83 mm

Length (in)
3 1/4 in

Weight (g)
156 g

Weight (oz)
5.5 oz

Maximum line Ø (mm)
12 mm

Maximum line Ø (in)
7/16 in

Fasteners (mm)
5 RH mm

Fasteners (in)
#10 RH in

Maximum working load (kg)
227 kg

Maximum working load (lb)
500 lb

Breaking load (kg)
1134 kg

Breaking load (lb)
2500 lb