Project Description

50 LEO

50 Leo M Birmingham Pkwy, Boston, MA 02135

Project Description

50 LEO is a 49-unit luxury new construction condo building situated in the emerging Brighton Corridor. The project manager requested a fire rated hinges solution for their 3-0″ x 7-0″ doors in hollow metal frames.

Waterson Product

K51M-450-A3-US19: Full Mortise 4.5 inch x 4.5 inch, satin matte black, speed control with self-closing mechanism, 90-minute fire rating code.
Fill out the form below and request a trade discount for your project.

Distributor

Unified Door & Hardware Group
Elkridge, MD, 21075

  • #black hinges for doors #fire rated residential doors #matte black #matte black door hinges
  • self closing fire door hinges
  • #black hinges for doors #fire rated residential doors #matte black #matte black door hinges
  • #black hinges for doors #fire rated residential doors #matte black #matte black door hinges

Request For Quote

Please note that Waterson Closer Hinges start from a size of 4″x4″. If you’re in need of smaller self-closing hinges, we’d recommend checking out some other resources! Also, we only provide single acting closer hinges. Thank you.

Recent Post

  • wood veneer door hinges finishes

How to Stop Wood Veneer Door Slamming and Edge Cracking

March 17th, 2026|Comments Off on How to Stop Wood Veneer Door Slamming and Edge Cracking

Wood veneer doors often look flawless on drawings. However, once installed and placed into daily use, performance issues begin to appear. Over time, doors may [...]

  • hinge that holds door open

Can Waterson Tension Hinge Hold a Door Open by Tightening the Brake

March 16th, 2026|Comments Off on Can Waterson Tension Hinge Hold a Door Open by Tightening the Brake

If you specify hardware long enough, you know this question will eventually come up. Recently, we received an interesting and practical request: “Customer was asking [...]