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Polished brass round back plate for cabinet knob, model 57600

Ultra Hardware

Ultra Hardware 57600 Polished Brass Cabinet Knob Back Plate

SKU CH-HDST-YP75H

Polished brass round back plate for cabinet knobs, 2-3/4 inch diameter, high-density zinc construction, screws not included

  • Surface finishPolished Brass
  • Sold asEach
  • Polished brass finish adds warm, classic appeal to cabinets
  • High-density zinc construction provides lasting durability for daily use
  • 2-3/4" diameter fits standard cabinet knob back-plate openings
  • Each piece sold individually so you buy only what you need
  • Simple hardware swap updates kitchen style without full remodel

Polished Brass Cabinet Backplate

The Ultra Hardware 57600 is a round backplate made from high-density zinc with a polished brass finish. It measures 2-3/4 inches in diameter and is sold individually in a polybag. This piece suits homeowners or property managers updating kitchen or bathroom cabinets without a full remodel.

Replaces worn or dated hardware

Swapping old backplates for this model refreshes the look of existing cabinets at low cost and effort. The upgrade is worthwhile when knobs are still functional but the surrounding trim shows tarnish, scratches or a finish that clashes with new appliances or paint. Screws are not included, so reuse the original fasteners or source matching ones separately.

Fits standard knob installations

The backplate sits between the knob and the cabinet face, distributing pressure and covering old screw holes or finish shadows. It requires a knob with a compatible base diameter and mounting screw length. No special tools are needed beyond a screwdriver, and the zinc construction resists corrosion in humid rooms.

How it compares

Measured against everything we stock in Door Stops, Hinges & Window Hardware, at today’s prices. Recalculated every night.

Price $1.99
Cheaper than about 80% of the 316 comparable items (median $14.99).

Specifications

Size & build
Surface finishPolished Brass

Questions about this item

What size screw holes suit the 2-3/4" diameter back plate?

The back plate measures 2-3/4" in diameter and is designed for standard cabinet knob screws, which are sold separately.

How do I attach the polished brass back plate to a cabinet door?

Position the plate, mark the centre hole, drill, then fasten the knob through the plate using a machine screw from the front — the common mistake is using a wood screw that strips the zinc.

Will the polished brass finish need re-coating over time?

The high-density zinc base with polished brass plating resists tarnish; occasional gentle cleaning with a soft cloth maintains the shine without requiring re-coating.

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