A window balancer manufacturer had wanted to re-design a window balancer spring from having hooks to a "no-hook" design. Hooks have historically been the "weak link" in in balancers. Patrick was successful in providing guidance and samples for their engineers to test. The project was launched and Patrick supplied the family of items to support their efforts to market their new balancer sash springs.
Annual Quantity: varied
Material: sizes varied .054"-.059" Oil Tempered