Used as top and bottom roller by several patio door manufacturers. Consists of 1/4"W center groove nylon wheel, 2"L x 3/8"W steel housing, high-tension heat-treated steel spring.
Used as top and bottom roller by several patio door manufacturers. Consists of 1/4"W center groove nylon wheel, 2"L x 3/8"W steel housing, high-tension heat-treated steel spring.