Product Overview
Cal-Royal BB31 NRP 4-1/2 x 4-1/2 Standard Weight Ball Bearing Hinges, Five Knuckle, Non-Removable Pin
- 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
Brand | |
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Finishes | 630 Satin Stainless Steel, 633 Satin Brass, 652 Satin Chrome |
Size | 4.5" x 4.5" |
Gauge | 0 .134 |
Material | 1040 steel or 304 series stainless steel |
Usage | Medium Duty |
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Cal-Royal BB31 NRP 4.5″ x 4.5″ Ball Bearing Hinge (Non-Removable Pin)