Monroe Hinge is the heavy duty piano hinge specialist. We have a large selection of heavy duty piano hinges and can manufacture any variety of specialty heavy duty piano hinges to suit your needs. Holes can be added depending on quantity requested.

We are equipped to produce special and fabricated hinges and perform such operations as hole punching, forming, offsetting, notching, countersinking, finishing and plating. Holes can be added depending on quantity requested.

  • Heavy duty industrial strength hinges available
  • Custom hole patterns available
  • Available in steel, stainless steel and aluminum
  • Military spec finishes available
  • Please call - other sizes available. Holes can be added depending on  quantity requested.
Unit of Measure


N/A 72.00 in


N/A Steel


N/A 0.250 in

Open Width

N/A 3.00 in

Pin Diameter

N/A 0.625 in


N/A 1.50 in


N/A Prop 65 Warning: This product may contain chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm.

Are you looking for a quote?

Values Provider

Engineering Support

Over 150 years of combined knowledge for our customers

Material Solutions

A full complement of aluminum, steel, stainless steel and more.

Customer Service

We are well known for our superior Customer Service

Quality Assurance

We are AS9100D & ISO 9001:2015 certified and have a customer base in many diverse industries