Trimco 3917-12ET Manual Flushb...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$48.30
$39.67
Trimco 3917-12ET Manual Flushbolt - Extended Throw for Metal Doors

Trimco 3917-12ET Manual Flushbolt - Extended Throw for Metal Doors

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Model: TRI-3917-12ET-626
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$48.30
$39.67
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3910 SERIES MANUAL FLUSH BOLTS OVERVIEW

Trimco’s 3910 Series Manual Flush Bolts offer products designed for use with wood or metal doors. With the only stainless steel finger in the industry, the 3900 Series Manual Flush Bolts are engineered for easy installation and long life. They are available in most architectural finishes and can be custom ordered for special applications. Custom rod lengths are also available.

 

FEATURES & BENEFITS

  • Body is manufactured from high density extrusion for greater durability
  • Stainless steel finger for high reliability and long life
  • Patented design for long life and easy installation
  • Positive spring action completely locks or unlocks throw

 

APPLICATIONS

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

 

DOWNLOADS & RESOURCES

Manufacturer Resources

Product Specs

ADA Compliant:
Yes
Warranty:
Lifetime Mechanical & Limited Finish
Product Group:
Door Trim and Accessories
Product Subgroup:
Flush Bolts
Product Type:
Flush Bolts & Strikes
Subcategory:
Flush Bolts
Door Type:
Metal or Wood
Commercial/Residential:
Commercial
Series:
3910 Series
Product Category:
Door Trim and Accessories
Department:
Door Hardware

Trimco TRI-3917-12ET-626 – Frequently Asked Questions

1) What is a manual flush bolt like the Trimco 3917-12ET actually used for?
A manual flush bolt is what holds the inactive leaf of a pair of doors shut so the active leaf has something to latch into. It mortises into the edge of the inactive door and throws a rod into the frame head or the floor, and you set it by hand with the finger on the face of the bolt. The 3917-12ET is the extended throw version for metal doors in Trimco's 3910 Series, with a positive spring action that locks or unlocks the throw completely so the rod does not creep back out of the strike. It is a commercial product, used in commercial and industrial buildings, multifamily and mixed use, hospitality and office buildings.
2) Do I need a flush bolt on both the top and bottom of the inactive door?
Flush bolts are ordered and installed individually, so a pair of doors with an inactive leaf bolted top and bottom takes two of the 3917-12ET, one at the head and one at the threshold. Some openings only get a top bolt where the inactive leaf is dogged for appearance rather than security. Count the bolt positions on your opening, not the doors.
3) Will Trimco's 3917-12ET flush bolt work on a hollow metal door?
Yes, that is exactly what it is for. The 3917-12ET is the extended throw flush bolt built for metal doors in Trimco's 3910 Series. The 3910 Series as a whole covers both wood and metal door applications, and the model you pick within the series is what decides which one you get, so match the model to the door leaf material you actually have.
4) Is a manual flush bolt or an automatic flush bolt the right choice for my pair of doors?
A manual bolt like the 3917-12ET is set and released by hand at the door edge, so it suits an inactive leaf that stays shut most of the time and only gets opened to move equipment or furniture through. An automatic or self latching bolt releases when the active leaf opens, which is what a fire rated pair or an egress opening typically calls for because nobody should have to reach the door edge to get out. Decide by how often the second leaf gets used and what your code official requires for that opening.
5) What finishes does the Trimco 3917 extended throw flush bolt come in?
Seven finishes: 605 bright brass, 606 satin brass, 613 oil rubbed bronze, 613E dark oxidized satin bronze, 622 matte black, 625 bright chrome and 626 satin chrome. If you are matching bolts to hinges and levers already on the opening, those are standard BHMA finish numbers, so a 626 bolt lines up with 626 hardware from any other manufacturer on the job.
6) I have unusually tall doors. Can I get a flush bolt with a longer rod?
Custom rod lengths are available on Trimco's 3910 Series manual flush bolts, and the series can be custom ordered for special applications. That covers tall leaves and oversized frames where a standard rod will not reach the strike. Measure from the bolt's mortise location to the strike point before you specify the length.
7) Do flush bolts count against ADA requirements on an opening?
The 3917-12ET is listed as ADA compliant. Worth knowing how that plays out in the field: ADA governs the operable hardware on the leaf people actually use, and a manual bolt on an inactive leaf is not the door someone opens to pass through. If the second leaf is part of the required clear width for that opening, the bolt on it is no longer just decorative and the opening needs to be looked at as a whole.
8) What else do I need to order with a flush bolt to finish the opening?
The bolt itself is only half the job. A top bolt throws into a strike in the frame head, and a bottom bolt needs either a floor strike or a dustproof strike set into the threshold or floor slab so the rod has a clean hole to drop into. Trimco publishes a dustproof strike, the 3999, within the same flush bolt line. Also confirm the inactive leaf is prepped for the bolt mortise, because a factory prepped metal door is a different order than field cutting one.
9) Are Trimco flush bolts durable enough for a high traffic building?
The body is a high density extrusion, and the finger, the part that gets pushed and pulled every time the leaf is worked, is stainless steel. Trimco calls it the only stainless steel finger in the industry. The finger is the usual failure point on a flush bolt, since it is a small moving part that people lever on with a screwdriver or a key when it sticks, so stainless there is what matters for a hospitality or multifamily fleet.
How fast can I get the Trimco TRI-3917-12ET-626 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-3917-12ET-626 come with a warranty?
Absolutely. The Trimco TRI-3917-12ET-626 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-3917-12ET-626?
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-3917-12ET-626 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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