CRL Spring Tension Roller is used by several patio door manufacturers. The steel spring is coiled in a "S" configuration, and is made of heat treated, high tension steel spring; used by several patio door manufacturers. The nylon wheel has a 1/4" (6 mm) center groove.
![CRL Sliding Screen Door Spring Tension Roller 1" Nylon Wheel Bulk [50 pack] - B512B](http://homehardware4u.com/cdn/shop/files/Screenshot2024-04-17134607.png?v=1713386794&width=1445)
![CRL Sliding Screen Door Spring Tension Roller 1" Nylon Wheel Bulk [50 pack] - B512B](http://homehardware4u.com/cdn/shop/files/B512B_8576.jpg?v=1713386797&width=1445)