- Designed for use with box rail on wood-frame sliding doors from 1-1/2 inch to 2 inch thick
- For use with 59, 5100, 5103, 5104, 5105, 5110, 5114 or 5116 box rail
- Slot in top of door strap allows lateral and vertical adjustment
- Precision formed steel
- Comes with self-lubricating Delrin bearings