Sargent 7855 Mortise Office En...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$947.02
$559.62
Sargent 7800 Series - Mortise Office or Entry Knob Lockset

Sargent 7855 Mortise Office Entry Knob Lockset with Grade 1 Security

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Model: 7855-26D
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$947.02
$559.62
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Sargent 7855 Mortise Office Entry Knob Lockset with Grade 1 Security and Fire Rating

Professional-Grade Mortise Lock Solution

The Sargent 7855 Mortise Office Entry Knob Lockset delivers commercial-grade security with ANSI/BHMA A156.13 Series 1000 Grade 1 operational and security ratings. This mortise lock features an 8" x 1-1/4" front with 1" x 5/8" one-piece anti-friction reversible latch and 1-1/4 inch strike lip for reliable performance. UL and cUL listed for fire doors and windstorm applications with ANSI/UL 10C positive pressure fire test certification.

Professional Features & Benefits

  • Grade 1 Security Rating: ANSI/BHMA A156.13 Series 1000 operational and security Grade 1 certification for maximum commercial security performance.
  • Fire-Rated Construction: UL and cUL listed with ANSI/UL 10C positive pressure fire test certification for fire door and windstorm applications.
  • Commercial Front Plate: 8" x 1-1/4" front size with 1-1/4 inch strike lip accommodates standard commercial door preparations.
  • Anti-Friction Latch System: One-piece anti-friction reversible latch with 1" x 5/8" dimensions provides smooth operation and easy field reversibility.
  • Patented Design: Patented construction with pre-assembled components ensures fool-proof installation and reliable operation.
  • Dual Operation Modes: Key outside retracts latchbolt while trim inside always retracts latchbolt, with outside trim remaining locked for controlled access.
  • Auxiliary Deadlatch: Integrated auxiliary deadlatch prevents forced entry and ensures positive latching in all conditions.
  • Manufacturer Warranty: 10 Year warranty coverage for added confidence and long-term protection.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Installation & Operation

  1. Review manufacturer specifications and verify door preparation requirements including door thickness, stile width, and handing as applicable to this product.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and/or frame surfaces.
  3. Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions.
  4. Install all mounting hardware and secure the device to door and frame per manufacturer torque specifications.
  5. Adjust operational components for proper alignment, latching, and smooth operation throughout the full range of motion.
  6. Test device operation to verify proper function and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Choose Sargent Quality?

Sargent mortise locksets deliver professional-grade reliability with patented construction and pre-assembled components rated for Grade 1 security performance. 10 Year warranty coverage provides long-term protection and confidence. Engineered for demanding commercial applications where dependable security and fire-rated performance are essential.

Product Documentation & Resources

Manufacturer Resources

Product Specs

Series:
7800 Series
Product Group:
Mechanical Locks
Product Subgroup:
Mortise Locks and Trim
Product Type:
Mortise Locks
Subcategory:
Mortise Locks and Trim
Commercial/Residential:
Commercial
Lock Function:
Office/Entry
Keyed Function:
Mortise Lock
Lock Type:
Mortise
Product Model:
7855
Product Function:
Office/Entry
Product Category:
Exit Devices and Trim
Department:
Door Hardware

Sargent 7855-26D – Frequently Asked Questions

How fast can I get the Sargent 7855-26D delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Sargent 7855-26D come with a warranty?
Absolutely. The Sargent 7855-26D is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Sargent 7855-26D?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Sargent 7855-26D from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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