Product Overview
Cal-Royal BB31 NRP 4-1/2 x 4-1/2 Standard Weight Ball Bearing Hinges, Five Knuckle, Non-Removable Pin
Features and Benefits:
- Recommended for medium-frequency usage
- Made with four ball bearing assemblies
- Recommended for use with a door closer
- Packed with fasteners for hollow metal and wood doors
- NRP (non-removable pin) – security feature for outswing doors
- Meets industry standards ANSI/BHMA A156.1
- .134 standard weight, ball bearing
- NRP (non-removable pin) – set screw in barrel
