Flush Bolts & Coordinators: Secure Double Doors with the Right Hardware

Ensure Compliance, Functionality & Safety in Every Opening

Double doors are a staple in commercial construction from hospitals and schools to offices, retail stores, and industrial facilities.
But without the right supporting hardware, they can fail to close properly, violate fire codes, or compromise security.

That’s where flush bolts and door coordinators come in.

At ZenSupply, we stock the essential components you need to secure, align, and automate double-door performance, including manual and automatic flush bolts, surface bolts, and door coordinators from the most trusted names in the industry.

ZenSupply. We make it EASY.

Why Flush Bolts and Coordinators Matter

Double doors are used when wider openings are required for traffic flow, equipment movement, or emergency egress.
But both doors aren’t always in use and that creates a challenge.

Without proper securing and sequencing hardware, you risk:

• Doors not closing properly
  
  
• Misaligned locks and latches
  
  
• Damage to doors or frames
  
  
• Fire and ADA code violations
  
  
• Reduced security and failed inspections
  
  

Flush bolts and coordinators solve these issues by ensuring one leaf (typically the inactive leaf) stays secured and the active leaf functions as intended.

What We Offer: Flush Bolts & Coordinators at ZenSupply

We carry a full line of commercial-grade products to support secure, code-compliant double-door installations:

Manual Flush Bolts

These are the most commonly used bolts in commercial double doors. They mount into the top and/or bottom edge of the inactive door and must be manually engaged.

Features:

• Steel or brass construction
  
  
• UL-listed for fire-rated openings
  
  
• Variety of throw lengths (typically 3/4" to 1")
  
  
• Available in fire-rated and non-fire-rated models
  
  
• Multiple finishes for aesthetic and corrosion resistance
  
  

Best for:

• Office entries
  
  
• Utility closets
  
  
• Secondary exits
  
  

Top Brands:
Ives, Rockwood, Don-Jo, Hager

Ensure top and bottom latching

Compatible with hollow metal or wood doors

Easy to install and field-adjustable

Automatic Flush Bolts

These activate automatically when the active door closes retracting when the door is opened and reengaging when it closes. No manual action is needed.

Features:

• Fire-rated options available
  
  
• Top and bottom bolt models
  
  
• Field reversible (for LH or RH doors)
  
  
• Compatible with coordinators
  
  

Best for:

• Fire-rated door pairs
  
  
• Stairwells and egress paths
  
  
• Healthcare, education, and high-traffic facilities
  
  

Top Brands:
Ives, ABH, Rockwood

A must-have for facilities that require hands-free operation and fire compliance.

Surface Bolts

An alternative to flush bolts, surface bolts mount on the face of the door and are easier to install in some retrofit applications.

Types Available:

• Barrel bolts
  
  
• Extension bolts
  
  
• Heavy-duty surface bolts
  
  
• Concealed or visible mounting
  
  

Applications:

• Non-rated doors
  
  
• Storage and back-of-house
  
  
• Temporary security setups
  
  

Top Brands:
Don-Jo, Rockwood, Trimco

Not suitable for fire-rated doors unless listed for such use.

Door Coordinators

Coordinators control the closing sequence of paired doors ensuring that the inactive leaf closes first, allowing flush bolts or latches to engage properly.

Types Available:

• Gravity arm
  
  
• Roller arm
  
  
• Adjustable length
  
  
• Active leaf hold-open features
  
  

Use Cases:

• Fire-rated double doors
  
  
• Egress doors with vertical rod exit devices
  
  
• Buildings with frequent high-traffic swing patterns
  
  

Top Brands:
Ives, ABH, Glynn-Johnson

Required by code on many rated openings
Ensures safe and secure latch alignment
Supports automatic flush bolt function

Who Uses Flush Bolts & Coordinators?

ZenSupply provides hardware solutions for professionals managing:

• New Construction & Fit-Outs – Ensure all door pairs meet code
  
  
• Facility Maintenance & MRO – Replace worn or broken flush bolts quickly
  
  
• Hospitality & Retail – Secure service entries and back-of-house areas
  
  
• Healthcare & Education – Meet fire/life safety requirements
  
  
• Commercial Offices & High-Rise Management – Maintain proper door sequencing across multiple floors
  
  

Why Choose ZenSupply?

Complete Inventory

From basic flush bolts to automatic fire-rated hardware and full coordination systems we stock everything in one place.

Trusted Brands

We only carry commercial-grade components from industry-leading manufacturers.

Fast Shipping

Most items ship same-day so you can stay on schedule and avoid inspection delays.

Expert Help

Unsure what type of flush bolt or coordinator is code-required for your opening?
Zen Advisors are available via chat, text, or email real-time.

ZenSupply Rewards

Earn points on every order and redeem them for:

• Gift cards
  
  
• Discounts
  
  
• Exclusive loyalty perks
  
  

Brands You Can Trust for Door Coordination Hardware

Brand	Specialty
Ives	Flush bolts, coordinators, stops
Rockwood	Manual and automatic flush bolts
ABH	Heavy-duty bolts, hospital hardware
Don-Jo	Value-focused bolts and trim
Glynn-Johnson	Overhead holders and coordinators
Trimco	High-end accessories and trim solutions

All brands meet ANSI/BHMA standards and fire/life safety codes.

Common Questions: Flush Bolts & Coordinators

Q: Are flush bolts required on double doors?
A: Yes when one door is inactive, a bolt is required to secure it and ensure proper latch engagement for the active door.

Q: Can I use surface bolts instead of flush bolts?
A: Only on non-rated doors. Fire-rated doors require UL-listed flush bolts.

Q: Do I need a coordinator on all double doors?
A: Not always but any fire-rated door pair or door with automatic flush bolts typically requires one.

Final Word: Secure Double Doors the Right Way

Double doors don’t work without proper coordination.
The right flush bolts and coordinators keep your building safe, secure, and compliant.

ZenSupply delivers
✔ Trusted, code-compliant brands
✔ Expert support
✔ Loyalty rewards with every purchase

Whether it’s a hospital corridor or a back-of-house stairwell, we make it EASY to secure your double doors.

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