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

Usually Ships: 3-5 Business Days
  • Meets industry standards ANSI/BHMA A156.1
  • .134 standard weight, ball bearing
  • NRP (non-removable pin) – set screw in barrel

Available Options:

Clear

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

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)