Deadbolts & Cylinders – Upgrade Security with High-Performance Deadbolts

Lock Down What Matters with Commercial-Grade Security Hardware

When it comes to commercial security, core locking hardware is your front line of defense.
And nothing reinforces that defense like a high-performance deadbolt and the right cylinder behind it.

At ZenSupply, we stock a full range of mechanical and high-security deadbolts plus interchangeable and restricted keyway cylinders from trusted brands like Schlage, Sargent, Medeco, and more.
Whether you’re retrofitting one office or standardizing across a facility, we make it EASY to upgrade commercial security.

Why Deadbolts & Cylinders Matter in Commercial Security

Commercial deadbolts and cylinders

 do more than lock a door they:

• Prevent unauthorized access
  
  
• Withstand forced entry attempts
  
  
• Enable key control
  
  
• Support fire/life safety compliance
  
  
• Integrate with access control systems
  
  

Unlike residential locks, commercial-grade deadbolts are designed for high traffic, high threat, and high accountability environments.
Spec-grade deadbolts and precision-matched cylinders are essential to any secure facility.

ZenSupply Deadbolt Options

We carry a wide range of deadbolts tailored to commercial needs, including:

Single Cylinder Deadbolts

These are the most common deadbolts used on commercial doors with key access on the outside and a thumbturn on the inside.

Best for:

• Office doors
  
  
• Storage rooms
  
  
• Utility closets
  
  
• Low-traffic exterior entries
  
  

Features:

• ANSI Grade 1 or Grade 2 security
  
  
• Compatible with IC core or standard cylinders
  
  
• Multiple finishes for design consistency
  
  
• Available in fire-rated models
  
  

Top Brands:
Schlage, Falcon, Yale, Sargent

Double Cylinder Deadbolts

These feature keyed cylinders on both sides ideal for locations where both sides of the door must be secured.

Use Cases:

• Doors with glass panels or adjacent sidelights
  
  
• IT rooms
  
  
• Back exits or storage zones
  
  

Check local code many jurisdictions restrict use of double cylinder deadbolts on egress paths.

Classroom & Institutional Deadbolts

Engineered for emergency lockdown and controlled key access, these options support safety in high-risk environments.

Common Features:

• Inside key override or no inside access
  
  
• High-security lockout function
  
  
• Meets life safety codes for schools and healthcare
  
  

Brands Available:
Schlage, Sargent, Medeco, Corbin Russwin

Commercial-Grade Cylinders We Offer

The cylinder is the heart of the lock and getting it right is crucial.

We carry:

Conventional Cylinders

These standard cylinders work with most mortise locks and cylindrical locks.

Options Include:

• 5- or 6-pin configurations
  
  
• Various tailpiece lengths and formats
  
  
• Brass, chrome, bronze, and other finishes
  
  

Best for cost-effective key control and easy upgrades

Interchangeable Core Cylinders (IC Core)

Perfect for facilities that require fast rekeying and master key systems.

Available in:

• SFIC (Small Format IC) – Compatible with Best, Arrow, Falcon, etc.
  
  
• LFIC (Large Format IC) – Used with Schlage, Sargent, Yale, and others
  
  

Benefits:

• Swap cores in seconds without changing the lock body
  
  
• Support multi-tenant, multi-location master key setups
  
  
• High-security options available
  
  

Use Cases:

• Campuses
  
  
• Government buildings
  
  
• Healthcare facilities
  
  
• Large commercial complexes
  
  

High-Security & Restricted Key Cylinders

Need key control and resistance to bumping, drilling, or picking?
These cylinders are UL 437-rated and come with patented key systems.

Top Features:

• Controlled duplication (only authorized vendors can make keys)
  
  
• Pick/drill resistance
  
  
• Key tracking systems for accountability
  
  

Brands We Carry:

• Medeco
  
  
• Schlage
  
  
• Sargent
  
  

For maximum security environments, these are the standard.

Who Relies on ZenSupply for Deadbolts & Cylinders?

Our customers span industries that can’t afford security lapses:

• Contractors & Builders – Source spec-compliant deadbolts for commercial projects
  
  
• Locksmiths & Installers – Get the brands and key systems you trust
  
  
• Facility & Property Managers – Upgrade security quickly and easily
  
  
• Healthcare & Education Buyers – Meet high-risk security and code requirements
  
  
• MRO & Procurement Pros – Ensure fast delivery and part compatibility
  
  

Why Choose ZenSupply?

✅ One-Stop Commercial Hardware Source

From locks to cores to key blanks and accessories we stock every component.

✅ Fast Fulfillment

Real-time inventory. Same-day shipping. Nationwide delivery.

✅ Trusted Brands Only

No imports, no substitutions, just genuine spec-grade security.

✅ Live Expert Support

Need help matching a cylinder to your hardware? Our Zen Advisors are available by chat, text, or email real-time.

✅ ZenSupply Rewards

Earn points on every order redeem for:

• Gift cards
  
  
• Discounts
  
  
• Pro perks
  
  

Top Brands for Deadbolts & Cylinders

Brand	Specialty
Schlage	B660/B560 Series, IC cores, Primus
Sargent	High-security mortise deadbolts
Medeco	UL 437-rated cylinders and key systems
Arrow	Restricted keyways, master key systems
Don-jo	Patented, drill-resistant platforms
Yale	LFIC cylinders and key control systems
Falcon	Cost-effective deadbolts and SFIC cores

✔ UL 437
✔ ANSI Grade 1
✔ Patented key systems available

Common Questions

Q: What’s the difference between SFIC and LFIC?
A: SFIC is smaller and used by Best/Falcon-style locks. LFIC is used by Schlage, Sargent, and others. They are not cross-compatible.

Q: Can I use a high-security cylinder in a standard deadbolt?
A: Yes, if the housing supports it. Our Zen Advisors can verify compatibility for you.

Q: Are deadbolts fire-rated?
A: Some are. Check the UL listing to ensure it’s appropriate for rated openings.

Final Word: Upgrade Your Locking Power

Commercial security starts at the door and the right deadbolt and cylinder combo ensures lasting protection.
Whether you need fast rekeying, high-security keyways, or hardware that stands up to abuse, ZenSupply delivers it fast, backed by expert support.

✔ Industry-trusted brands
✔ In-stock product
✔ Real-time guidance
✔ Rewards for every purchase

ZenSupply. We make it EASY.

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