Smiths Architectural Hinge Button Tip Plain Bearing SP 1 Pair 76x51

The Smiths Architectural Button Tip Plain Bearing Hinge in a satin polished finish is a robust and visually appealing hinge designed for internal doors in both residential and light commercial settings. Featuring a classic button tip finial and plain bearing mechanism, this hinge combines traditional styling with modern performance.

Measuring 76mm x 51mm, this hinge is slightly smaller than standard 4-inch hinges, making it ideal for light- to medium-weight internal doors where a balance between aesthetics and reliability is important.

Key Features

• Traditional Button Tip Design
  The decorative button finials at each end of the hinge knuckle add a classic, refined detail, perfect for traditional or period-style interiors.
• Grease-Packed Plain Bearing
  The hinge features a plain bearing packed with grease, which reduces friction, ensures smoother operation, and extends hinge life — ideal for internal doors with regular use.
• Satin Polished Finish (SP)
  A smooth, brushed surface that resists fingerprints and adds a touch of elegance to your interior door hardware.
• Compact Size: 76mm x 51mm
  Designed to suit internal doors with lighter structural requirements or those where a more compact hinge is desired.
• Versatile Use
  Suitable for a variety of internal wooden doors in residential or light-use commercial environments.
• Durable Construction
  Manufactured from high-quality materials for strength and long-term reliability.
• Supplied as a Pair
  Pack includes 2 hinges—enough for one standard internal door.

Product Specifications

Applications

• Residential internal doors
• Light commercial interior doors
• Traditional or heritage-style renovations
• Wardrobe, cupboard, or room doors with lighter weight

Installation Guidance

• Mark and Mortice: Measure hinge placement and mortice the door and frame to fit the hinge leaves flush.
• Secure with Screws: Use the appropriate screws (usually included) to attach the hinge to both door and frame.
• Test Door Movement: Open and close the door several times to ensure smooth motion and correct alignment.
• Use Three Hinges on Taller Doors: For extra stability and to prevent warping on taller doors, consider using a third hinge.

Frequently Asked Questions (FAQs)

Q: What is a plain bearing hinge?

A plain bearing hinge uses a basic mechanism where the knuckle rotates directly on the pin. In this case, it is grease-packed to reduce friction and extend performance, making it suitable for internal doors.

Q: Are button tip hinges functional or decorative?

They are both. The button tip adds a decorative flourish to the top and bottom of the hinge pin while maintaining full structural performance.

Q: Can I use these on fire doors?

These are not specifically rated for fire door use. For fire-rated installations, opt for Grade 11 or 13 CE-marked fire door hinges with appropriate intumescent hinge pads.

Q: Do these hinges squeak over time?

Thanks to the grease-packed plain bearing, these hinges are designed to operate smoothly and quietly for prolonged periods.

Q: Are fixings included in the box?

In most cases, screws are supplied with the hinges, but it’s recommended to check packaging or product listing to confirm.

Why Choose Smiths Architectural?

With a legacy of engineering excellence, Smiths Architectural delivers quality door hardware that combines function, form, and fire safety. These button tip hinges offer a timeless look with dependable performance—ideal for builders, renovators, and designers seeking enduring quality.