This line offers some of the best value we've seen in heavy-duty gate hardware. Made from 3mm (just shy of 1/8") thick steel plate, zinc plated and finished with a black electrostatic deposition coating.
A simple retrofit to most gates with unsprung hinges. One end of the spring is mounted to the door frame, and the other end is mounted to the door.
Using the included lever rod, the spring tension is adjusted and fixed.
Spring diameter is 1", and overall length is about 12". Priced per spring with mounting screws supplied.