Fire Bolts

Commercial Fire Bolts for Fire-Rated Door Assemblies

Fire bolts are specialized door hardware designed for use on fire-rated door assemblies. Unlike standard flush bolts, fire bolts automatically engage when exposed to extreme heat, helping secure inactive door leaves and maintain the integrity of the fire door during a fire event. They eliminate the need for floor preparation while providing reliable performance in commercial buildings.

TM Hardware offers a professional selection of fire bolts, fire-rated flush bolts, and auxiliary fire latch hardware from industry-leading manufacturers including Rockwood and Ives. Our products are suitable for commercial, institutional, educational, healthcare, and industrial applications where fire-rated openings are required.

Fire Bolts for Wood and Metal Doors

Our collection includes fire bolts designed for a variety of commercial door constructions, including wood doors, hollow metal doors, and composite fire-rated doors. Whether you're replacing existing hardware or specifying a new fire-rated opening, you'll find solutions compatible with many commercial door systems.

• Fire bolts for wood doors
• Fire bolts for hollow metal doors
• Automatic flush bolts with fire bolts
• Lever extension flush bolts with fire bolts
• Top fire bolts with auxiliary fire latches
• Constant latching fire-rated flush bolts

Rockwood Fire Bolts

Rockwood fire bolts are trusted by contractors, architects, and commercial hardware professionals for their dependable operation and long service life. Our selection includes bottom fire bolts, automatic flush bolts with integrated fire bolts, self-latching flush bolts, and lever extension flush bolt assemblies designed for fire-rated door openings.

Ives Auxiliary Fire Latches

Ives fire bolts and auxiliary fire latch systems provide dependable protection for commercial fire doors. Popular models include top bolts, automatic flush bolts, retrofit fire latch solutions, and constant latching flush bolts designed for demanding commercial applications.

Applications

Fire bolts are commonly installed in:

• Commercial office buildings
• Schools and universities
• Hospitals and healthcare facilities
• Hotels and hospitality properties
• Government buildings
• Industrial facilities
• Apartment buildings
• Fire-rated stairwell doors
• Cross-corridor fire door openings

Why Use Fire Bolts?

Fire bolts provide an added level of protection by automatically securing inactive door leaves when exposed to high temperatures. They help maintain the performance of fire-rated door assemblies while reducing installation complexity by eliminating the need for floor strikes in many applications.

Why Buy Fire Bolts from TM Hardware?

• Commercial-grade fire-rated door hardware
• Rockwood and Ives fire bolt products
• Solutions for wood and metal doors
• Automatic and constant latching models
• Expert assistance selecting compatible hardware
• Competitive pricing and fast nationwide shipping

Frequently Asked Questions

What is a fire bolt?

A fire bolt is a safety device used on fire-rated doors that automatically projects when exposed to extreme heat, helping secure inactive door leaves during a fire.

How does a fire bolt work?

When temperatures rise during a fire, the fusible plug or cover melts, allowing the bolt to extend and lock the inactive door leaf in place.

Are fire bolts required on fire-rated doors?

Fire bolt requirements depend on the door assembly, applicable fire codes, and the manufacturer's fire-rating specifications. Always follow local building codes and door manufacturer recommendations.

What is the difference between a fire bolt and a flush bolt?

A standard flush bolt is manually or automatically operated during normal door use, while a fire bolt is activated by heat during a fire to help maintain the integrity of a fire-rated door assembly.

Which brands of fire bolts does TM Hardware carry?

TM Hardware offers commercial fire bolts from trusted manufacturers including Rockwood and Ives for a wide variety of fire-rated door applications.