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3928K Series Cremone Bolts
The 3928 Series Cremone Bolts are decorative bolts for pairs of doors. The 3928K includes a cast knob for latching and unlatching, while the 3928L comes with a cast lever. Available in various architectural finishes and manufactured in the United States from solid brass or bronze. Shipped with mortise and surface strikes for different applications and available in a wide variety of door heights.
Product Feature
- Manufactured in North America
- Solid bronze or brass construction
- Available in various architectural finishes
- Cast knob or lever options available
- Supplied standard with mortise and surface strike
- Custom rod lengths available – specify door height
- Inquire for back-to-back mounting option
Fuction/Options
- 3928K Cremone Bolt w/ Knob
- 3928L Cremone Bolt w/ Lever
Applications
- Commercial & Industrial Buildings
- Government & Military Facilities
- Hospitality
- Multifamily & Mixed-Use
- Office Buildings.
Resources
Manufacturer Resources
Product Specs
- Series:
- 3928K Series
- Product Group:
- Door Trim and Accessories
- Product Subgroup:
- Cremone Bolt with Knob
- Product Type:
- Cremone Bolt with Knob
- Subcategory:
- Surface, Barrel and Dutch Door Bolts
- Commercial/Residential:
- Commercial
- Lock Type:
- Cremone Bolt with Knob
- Product Model:
- 3928K
- Product Category:
- Door Trim and Accessories
- Department:
- Door Hardware
Trimco TRI-3928K-626 – Frequently Asked Questions
1) Do I need to buy strikes separately for the Trimco 3928K cremone bolt?
No. Both a mortise strike and a surface strike ship standard with the 3928K, so you can mortise the head and sill prep or surface-apply it depending on what the frame and threshold allow. That matters on stone or tile floors where you would rather not cut a floor strike.
2) What is a cremone bolt and when would I use one instead of a flush bolt on a pair of doors?
A cremone bolt is a surface-mounted rod bolt for pairs of doors: turning the knob drives rods up to the head and down to the sill at the same time, locking the inactive leaf top and bottom in one motion. The Trimco 3928K does that with a cast knob. Flush bolts hide inside the door edge and have to be thrown one at a time, usually with the door open. Pick the cremone when you want the decorative exposed rod look and one-hand operation from the face of the door.
3) What is the difference between the Trimco 3928K and the 3928L?
Only the operating trim. The 3928K carries a cast knob, the 3928L a cast lever. Everything else in the 3928 Series is the same bolt. Levers are the usual pick where the hardware needs to be operable without tight grasping or twisting; a knob suits a more traditional or decorative opening.
4) Is the Trimco 3928K solid brass or plated pot metal?
Solid brass or bronze, cast and made in North America. That is why it holds up in high-traffic entries and why the architectural finishes wear rather than flake the way plated zinc does.
5) What finishes does the Trimco 3928K cremone bolt come in?
Five: 605 bright brass, 606 satin brass, 613 oil rubbed bronze, 625 bright chrome and 626 satin chrome. If you are matching existing openings in a building, 626 satin chrome and 613 oil rubbed bronze are the two that most commonly pair with existing commercial lever and knob trim.
6) Can I get a cremone bolt that operates from both sides of the door?
Back-to-back mounting is offered on the 3928 Series as a special, not a stock configuration, so it needs to be quoted rather than picked off a standard option list. Standard build is single-sided operation with the cast knob on one face.
7) Is the Trimco 3928K suitable for a commercial building or is it residential hardware?
It is classified commercial hardware, and Trimco lists it for office buildings, hospitality, multifamily and mixed-use, government and military facilities, and commercial and industrial buildings. Solid brass or bronze casting is what carries it in those settings.
How fast can I get the Trimco TRI-3928K-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-3928K-626 come with a warranty?
Absolutely. The Trimco TRI-3928K-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-3928K-626?
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Why buy the Trimco TRI-3928K-626 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
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every order.
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