BB31-NRP-26D

Cal-Royal BB31 NRP 4.5″ x 4.5″ Ball Bearing Hinge (Non-Removable Pin)

Usually Ships: 2-3 Business Days
  • Meets industry standards ANSI/BHMA A156.1
  • .134 standard weight, ball bearing
  • NRP (non-removable pin) – set screw in barrel

Available Options:

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

Finishes

630 Satin Stainless Steel, 633 Satin Brass, 652 Satin Chrome, US1 (622) Flat Black
Hinge Type

Full Mortise
Size

4.5" x 4.5"
Knuckles

Five
Bearings

Ball Bearing
Gauge

0 .134
Material

1040 steel or 304 series stainless steel
Usage

Medium Duty

Related Products

  • Trudoor Choice
    for standard hinges
    Trudoor-BB-US26D-4.5-x-4.5-Full-Mortise-Five-Knuckle-Hinge-for-Commercial-Doors

    Trudoor - BB – 4.5″ x 4.5″ Ball Bearing Hinge

    Multiple Finishes
    Starting at: $5.94
    Usage: Medium Duty
  • cal-royal-bb31-us26d-hinge

    Cal-Royal - BB31 4.5″ x 4.5″ Ball Bearing Hinge

    Multiple Finishes
    Starting at: $5.94
    Usage: Medium Duty
  • Cal-Royal-BB5200-NRP

    Cal-Royal - BB5200 4.5″ x 4.5″ Heavy Weight NRP Ball Bearing Hinge (Non-Removable Pin)

    Multiple Finishes
    Starting at: $18.75
    Usage: Heavy Duty
  • hager-bb1279-nrp-4.5x4.5-full-mortise-five-knuckle-hinge-us26d-satin-chrome

    Hager - BB1279 NRP 4.5″ x 4.5″ Ball Bearing Hinge (Non-Removable Pin)

    Multiple Finishes
    Starting at: $7.77
    Usage: Medium Duty
  • Trudoor Choice
    for standard NRP hinges
    trudoor-bb-us26d-hinges

    Trudoor - BB-NRP – 4.5″ x 4.5″ NRP Ball Bearing Hinge (Non-Removable Pin)

    Multiple Finishes
    Starting at: $5.60
    Usage: Medium Duty
Cal-Royal BB31 NRP 4.5″ x 4.5″ Ball Bearing Hinge (Non-Removable Pin)