Product Description

Cruising ESP blocks complement our existing blocks in looks and function, but are simpler in design and construction. Sheaves feature sleeve bearings to handle high static loads and are ideal for halyards or limited purchase systems on cruising boats. Available in aluminum or hand-polished stainless steel.

Use footblocks to redirect lines on the deck. Footblocks with lockoffs temporarily secure sheets and are designed for port or starboard installation by flipping them over.

Part Number: 6077

Imperial Metric
Sheave Dia. 2 1/4" 57 mm
Length 3 7/8" 99 mm
Weight 8 oz 226 gr
Max Line Dia. 5/8" 16 mm
Maximum Working Load 2500 lbs 1135 kg
Breaking Load 5000 lbs 2272 kg
Max Lockoff Load 1200 lbs 550 kg
FH Fasteners 5/16" 8 mm


Harken Blocks
A 1/2" 13 mm
B 2 5/32" 55 mm
C 2" 51 mm
D 9/16" 14 mm
E 2 1/4" 57 mm
F 3 25/32" 96 mm

Lockoffs are intended to hold lines temporarily and should not be used in place of line stoppers or clutches.
If double stacked, upper block is two-thirds of listed MWL and breaking load.
Click Image to Zoom
Harken 57mm Single Block w/ Lockoff
Original Price: $ 147.00
Price: $ 129.36

    © Site content copyright Mauri Pro Sailing, LLC. All rights reserved
    Site developed by Mauri Pro Sailing
    Mauri Logo