Trimco 3850 Fire Bolt - Edge M...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$189.00
$165.60
Trimco 3850 Fire Bolt - Edge Mount (630 Only)

Trimco 3850 Fire Bolt - Edge Mount (630 Only)

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Model: TRI-3850-630
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$189.00
$165.60
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3850 Fire Bolt - Edge Mount (630 Only)

  • The 3850 Fire bolt is a spring-loaded bolt, mounted in the inactive leaf of a pair of doors. The bolt is held in the retracted position by a fusible membrane which melts at 450 degrees and allows the bolt to engage and lock-up the pair of doors. Designed for use in conjunction with an automatic flushbolt or self-latching flushbolt. It replaces the bottom bolt of a set of auto/semi-auto flushbolts or can be used with a vertical rod panic device.

Product Features

  • Designed to be activated only in the event of a fire
  • Used in place of the bottom bolt in a set of automatic or semi-automatic flushbolts
  • Eliminates the need of a dust-proof strike
  • Easy installation
  • UL Rated 3-hours when used with 3810 or 3820
  • UL Rated 20 minutes when used with 3815L or 3825L.

Function/Options

  • 3850 Edge Mounted UL Fire Bolt

 

APPLICATIONS

  • Commercial & Industrial Buildings
  • Government & Military Facilities
  • Hospitality
  • Multifamily & Mixed-Use
  • Office Buildings.

Manufacturer Resources

Product Specs

Series:
3850 Series
ADA Compliant:
Yes
Product Group:
Door Trim and Accessories
Product Subgroup:
Fire Bolts
Product Type:
Fire Bolt - Edge Mount
Subcategory:
Fire Bolts
Door Type:
Metal or Wood
Commercial/Residential:
Commercial
Product Substrate:
Brass or Bronze
Product Category:
Door Trim and Accessories
Department:
Door Hardware

Trimco TRI-3850-630 – Frequently Asked Questions

1) What does the Trimco 3850 fire bolt actually do, and when does it engage?
The 3850 is a spring-loaded bolt that mounts in the inactive leaf of a pair of doors. It sits retracted and does nothing during normal use. A fusible membrane holds it back; at 450 degrees that membrane melts and the bolt drops, locking the pair of doors together. It only ever activates in a fire.
2) Can the Trimco 3850 fire bolt be used on its own to latch a pair of doors?
No. The 3850 is not a latching device for normal operation. It is designed to work alongside an automatic or self-latching flushbolt, replacing the bottom bolt of that set, or with a vertical rod panic device. You still need the top bolt or the panic device to hold the inactive leaf day to day.
3) Do I still need a dust-proof strike in the floor if I use a Trimco 3850?
No. Using the 3850 in place of the bottom flushbolt eliminates the dust-proof strike, which is one of the main reasons people spec it. That saves drilling the floor or threshold and removes the strike that fills with grit on high-traffic openings.
4) What fire rating does the Trimco 3850 edge mount fire bolt carry?
The rating depends on the flushbolt it is paired with. Used with the Trimco 3810 or 3820, the assembly is UL rated 3 hours. Used with the 3815L or 3825L, it is UL rated 20 minutes. Match the pairing to the rating called for on your door schedule.
5) Will the Trimco 3850 fire bolt work on wood doors, or is it metal only?
Both. The 3850 edge mount fire bolt is listed for metal or wood doors, so it suits hollow metal pairs and wood pairs alike.
6) Is the Trimco 3850 fire bolt suitable for a commercial code-compliant opening with accessibility requirements?
Yes. The 3850 is a commercial-grade device and is listed ADA compliant. Because it stays retracted until heat releases it, it adds no operating force or manipulation to the door under normal use. It is specified in office buildings, hospitality, multifamily and mixed-use, and government and military facilities.
7) What finish does the Trimco 3850 fire bolt come in?
630 satin stainless steel, and that is the only finish the 3850 edge mount fire bolt is offered in. Since it mounts on the edge of the inactive leaf and is hidden when the pair is closed, the finish rarely has to match the face hardware.
How fast can I get the Trimco TRI-3850-630 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 Trimco TRI-3850-630 come with a warranty?
Absolutely. The Trimco TRI-3850-630 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 Trimco TRI-3850-630?
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 Trimco TRI-3850-630 from ZenSupply?
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