Harken® stay tensioners are reliable mechanical adjusters that are easy to install and simple to use. Tensioners are made of polished stainless steel and chromed bronze, and feature bronze worm gears and thread drives to prevent galling under load. Moving components are mounted on greased roller bearings for easy adjustment.
Tensioners come in four sizes for boats from 27 ft to 50 ft (8 m to 15 m) with backstays from 9/32 in to 1/2 in (7 mm to 12 mm). B1722 tensioners have fold-down adjustment handles. The other tensioners accept a standard winch handle and are available in custom lengths.