Cal-Royal TBH-30 — 4.5″ × 4.5″ Plain-Bearing Butt Hinge (Standard Weight)




The Cal-Royal TBH-30 (also cataloged as DBH30) is a 4-1/2″ × 4-1/2″ full-mortise, standard-weight plain-bearing butt hinge designed for standard-weight, low-frequency doors. Features a five-knuckle design, ANSI template screw pattern, and includes wood & machine screws. Optional NRP (non-removable pin) variants available for security applications.

Lead time: Most finishes stock quickly; contact us for large quantities or special finishes.

Cal-Royal TBH-30 — 4.5″×4.5″ Standard-Weight Plain Bearing Hinge

  • Vendor
    Cal-Royal Products
  • Series
    TBH / DBH — Plain Bearing Hinges
  • Size
    4.5″ × 4.5″ (square corner, 5-knuckle)
  • Leaf Thickness
    0.134″ (standard weight)
  • Material
    Steel (std) • Stainless (US32D)
  • Bearing
    Plain bearing (no ball bearings)
  • Pin Options
    Removable pin • NRP (Non-Removable Pin)
  • Fasteners
    #12 wood & 12-24 machine screws
  • Compliance
    ANSI/BHMA A156.1 • UL fire-rated
  • Warranty
    Lifetime mechanical • 3-yr finish

  • US26D — Satin Chrome
  • US10B — Oil-Rubbed Bronze
  • US32D — Satin Stainless

Other finishes: USP, US3, US4, US10, US10A, US15, US15A, US26, DURO/Flat Black + NRP variants.

Leaf Thickness 0.134″
Knuckles 5
Screw Holes 8 — ANSI template
Use Standard-weight doors • not for heavy closers

Installation Difficulty

Level 2 — Easy: Basic tools; mortise if new install.



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