Patio Screen Door 1" Steel Ball Bearing Heat Treated Spring Tension Roller

This Patio Screen Door Tension Spring Roller has a 1/4 inch (6.4 millimeter) wide steel ball bearing wheel with center groove and a heat treated, high tension steel spring. The steel spring is curved, with the flat portion measuring 2-1/8 inches (54 millimeters). Used by several patio screen door manufacturers.

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Roller: Steel Ball Bearing

Spring: Steel