Trimco 3825Lx3850 UL Semi-Auto...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$301.35
$227.82

Trimco 3825Lx3850 UL Semi-Automatic Flushbolt with Fire Bolt Wood Doors

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Model: TRI-3825Lx3850.605
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$301.35
$227.82
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TRIMCO 3825LX3850 UL SEMI-AUTOMATIC FLUSHBOLT WITH FIRE BOLT WOOD DOORS OVERVIEW

  • 3825Lx3850 UL Semi-Automatic Flushbolt with Fire Bolt Wood Doors. UL Semi-Automatic Flushbolt with Fire Bolt Wood Doors.
  • Trimco’s 3800 Series Automatic and Semi-Automatic Flush Bolts are engineered to be extremely quiet and ultra efficient requiring very low closing force to secure the door. The patented design contains one third fewer parts with key components constructed of stainless steel creating a flush bolt with higher reliability than the competition. Available for metal or wood doors, the 3800 Series Automatic and Semi-Automatic Flush Bolts are flexible for most any application.
  • Buy the TRIMCO 3825Lx3850 Series today to add a stylish hardware for your home!

TRIMCO 3825LX3850 SEMI-AUTOMATIC FLUSHBOLT PRODUCT FEATURES

  • Ultra efficient requiring very low closing force
  • to secure the door.
  • Steel construction for high reliability and long life.
  • Low noise level for peace and quiet.
  • Architectural finishes to match any décor.
  • Interchangeable trim kits.

TRIMCO 3825LX3850 SERIES COLOR VARIATIONS

  • Trimco 3825Lx3850 UL Semi-Automatic Flushbolt with Fire Bolt Wood Doors Bright Brass (605)
    Trimco 3825Lx3850 UL Semi-Automatic Flushbolt with Fire Bolt Wood Doors Satin Brass (606)
    Trimco 3825Lx3850 UL Semi-Automatic Flushbolt with Fire Bolt Wood Doors Oil Rubbed Bronze (613)
    Trimco 3825Lx3850 UL Semi-Automatic Flushbolt with Fire Bolt Wood Doors Dark Oxidized Satin Bronze (613E)
    Trimco 3825Lx3850 UL Semi-Automatic Flushbolt with Fire Bolt Wood Doors Matte Black (622)
    Trimco 3825Lx3850 UL Semi-Automatic Flushbolt with Fire Bolt Wood Doors Bright Chrome (625)
    Trimco 3825Lx3850 UL Semi-Automatic Flushbolt with Fire Bolt Wood Doors Satin Chrome (626)
    Trimco 3825Lx3850 UL Semi-Automatic Flushbolt with Fire Bolt Wood Doors Bright Stainless Steel (629)
    Trimco 3825Lx3850 UL Semi-Automatic Flushbolt with Fire Bolt Wood Doors Satin Stainless Steel (630)

APPLICATIONS 

  • Commercial & Industrial Buildings
  • Hospitality
  • Multifamily & Mixed-Use
  • Office Buildings

TRIMCO 3800 SERIES COLLECTION

  • Trimco 3810x3810 UL Automatic Flushbolt Metal Doors
    Trimco 3810x3850 UL Automatic Flushbolt with Fire Bolt Metal Doors
    Trimco 3820x3810 UL Semi-Automatic Flushbolt Metal Doors
    Trimco 3820x3850 UL Semi-Automatic Flushbolt with Fire Bolt Metal Doors
    Trimco 3815Lx3815L UL Automatic Flushbolt Wood Doors
    Trimco 3815Lx3850 UL Automatic Flushbolt with Fire Bolt Wood Doors
    Trimco 3825Lx3815L UL Semi-Automatic Flushbolt Wood Doors
    Trimco 3825Lx3850 UL Semi-Automatic Flushbolt with Fire Bolt Wood Doors
    Trimco 3830WL Long Finish Kit Only Semi-Automatic Flushbolt - Wood Door

RESOURCES & DOWNLOADS

Manufacturer Resources

Product Specs

Commercial/Residential:
Commercial
Product Group:
Door Trim and Accessories
Product Subgroup:
Filler Plates, Lock Adapters and Wrap Arounds
Product Type:
Flush Bolts & Strikes
Subcategory:
Filler Plates, Lock Adapters and Wrap Arounds
Product Category:
Door Trim and Accessories
Department:
Door Hardware

Trimco TRI-3825Lx3850.605 – Frequently Asked Questions

1) Is the Trimco 3825Lx3850 flush bolt for wood doors or hollow metal doors?
Wood doors. The 3825L bolt and the 3850 fire bolt pairing is the wood door version of Trimco's 3800 Series. If your inactive leaf is hollow metal, use the metal door version instead: 3820x3810 for the semi-automatic without a fire bolt, or 3820x3850 for the semi-automatic with the fire bolt. Ordering the wood set for a metal door means the wrong mortise case and faceplate prep.
2) What is the difference between the Trimco semi-automatic flush bolt and the automatic version?
With a semi-automatic bolt like the 3825L, you throw the bolt by hand into the strike, and it releases automatically when the active leaf opens and pushes the release. An automatic bolt, Trimco's 3815L for wood doors, projects the bolt on its own when the inactive leaf closes, so nobody has to remember to set it. Semi-automatic is the usual pick where the inactive leaf gets opened often and staff want control over when it is latched; automatic is the pick where you cannot rely on anyone setting it.
3) What does the 3850 half of the Trimco 3825Lx3850 part number mean?
The 3850 is the fire bolt, the top bolt that goes into the head frame on a fire rated pair. The 3825L is the bottom, hand operated semi-automatic bolt. Ordered together as 3825Lx3850, you get the complete two bolt set for one inactive wood leaf. If your opening is not fire rated, the equivalent set is the 3825Lx3815L.
4) Is the Trimco 3800 Series flush bolt UL listed for fire doors?
The 3825Lx3850 set is UL listed and is the fire bolt configuration, which is what a fire rated pair of wood doors needs on the inactive leaf under the door assembly's listing. One set covers one inactive leaf, top and bottom.
5) How many Trimco 3825Lx3850 sets do I need for a pair of doors?
One set per pair. Flush bolts mount only in the inactive leaf of a double door, top and bottom, so a single pair of wood doors takes one 3825Lx3850. If you are hardware-ing multiple openings, count inactive leaves, not doors.
6) What finishes does the Trimco 3825Lx3850 flush bolt come in?
Nine architectural finishes, so it can be matched to the rest of the openings in a building: 605 bright brass, 606 satin brass, 613 oil rubbed bronze, 613E dark oxidized satin bronze, 622 matte black, 625 bright chrome, 626 satin chrome, 629 bright stainless, and 630 satin stainless. For commercial corridors, 626 and 630 are the ones that usually match existing lever and exit device trim.
7) Can I change the flush bolt trim finish later without replacing the whole bolt?
Yes. The 3800 Series uses interchangeable trim kits, so the visible faceplate can be swapped rather than pulling the mortised bolt body out of the door. For the semi-automatic wood door bolt, Trimco catalogs the 3830WL long finish kit as the trim-only item. That is useful when a building refinishes hardware or when a damaged faceplate needs replacing.
8) Do I still need a dust proof strike with the Trimco 3825L bottom flush bolt?
The 3825Lx3850 set covers the bolts themselves. The bottom bolt drops into the floor, so the opening also needs a floor strike, and on fire rated and finished floor conditions that is typically a dust proof strike. Order it separately with the matching finish code so the floor hardware lines up with the 605 through 630 finish you chose on the bolts.
9) Will the Trimco 3825L flush bolt hold up in a high traffic hotel or apartment corridor?
It is built for that. The 3800 Series is a commercial grade flush bolt with steel construction and key components in stainless steel, and the patented design uses about a third fewer parts than a conventional flush bolt, which is where the reliability comes from. Trimco lists it for commercial and industrial buildings, hospitality, multifamily and mixed-use, and offices. It also runs quiet and needs very little closing force to secure the leaf, which matters in guest room and residential corridors.
How fast can I get the Trimco TRI-3825Lx3850.605 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-3825Lx3850.605 come with a warranty?
Absolutely. The Trimco TRI-3825Lx3850.605 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-3825Lx3850.605?
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
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