Harken 57 mm Ratchet Block Swivel

Description

This 57mm Switchable Ratchet Swivel Boat Block from Harken is uniquely designed to allow sailors to hand-hold loaded lines, which offers a balance between holding power and controlled easing.

A solid companion to the popular Black Magic line of blocks from Harken, the Switchable Ratchet block features nylon resin sideplates which have been densely packed with long-glass fibres to achieve the ideal high-strength to weight ratio. 

Specification

Maximum Line Ø (mm):10

Maximum Line Ø (in): 3/8

Length (mm):103

Length (in):4 1/16

Weight (g):85

Weight (oz):3

Sheave Ø (mm):57

Sheave Ø (in):2 1/4

Maximum Working Load (kg):227

Maximum Working Load (lb):500

Breaking Load (kg):907

Shackle Pin Ø (mm):5

Shackle Pin Ø (in):3/16

Product Code:2135