Old Style Harken Black Magic Block. Available only while stocks last.
With high strength-to-weight ratios and free-rolling, high-load roller bearings, these versatile blocks are the workhorses of the Harken line.

Sheave Ø (mm)
150 mm

Length (mm)
305 mm

Length (in)
12 in

Weight (g)
1730 g

Weight (oz)
61 oz

Shackle pin Ø (mm)
16 mm

Shackle pin Ø (in)
5/8 in

Maximum line Ø (mm)
25 mm

Maximum line Ø (in)
1 in

Maximum working load (kg)
6802 kg

Maximum working load (lb)
15000 lb

Breaking load (kg)
13605 kg

Breaking load (lb)
30000 lb