B 770 - Sliding screen door M style Tension Spring , 1 inch Stainless Roller, 2 per pkg.
This roller assembly with M shaped tension spring with a 1 inch stainless steel ball bearing roller is used by several patio door manufacturers. The heat treated tension spring is 2-5/16 inches long & shaped like a M that provides tension on the roller housing.
- 1 inch stainless steel ball bearing roller
- 1/4 inch wide
- Concave (Grooved)
- Stainless Steel ball
bearing roller resists rust & corrosion & will roll smoothly
- Heat treated M shaped tension
- 2-5/16 inch tension spring that is M shaped.
- Roller assembly is 5/16 inch wide
- Used by several patio door manufacturers