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3928L 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:
- 3928L 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:
- 3928L
- Product Category:
- Door Trim and Accessories
- Department:
- Door Hardware
Trimco TRI-3928L-626 – Frequently Asked Questions
1) What does a Trimco 3928 cremone bolt actually do on a pair of doors?
It secures the inactive leaf of a pair, top and bottom, from one operating trim at mid-height. Rods run up to the head and down to the floor, so throwing the bolt pins that leaf at both ends and turns it into the strike point for the active leaf. That is what lets a pair work without a center mullion. The 3928 is a decorative bolt made for pairs of doors, so it is the wrong part for a single opening.
2) Do I have to specify handing when ordering a Trimco 3928L cremone bolt?
Yes, handing is part of the order. A cremone bolt mounts on one face of the inactive leaf with the trim turning in one direction, so left hand and right hand are not the same part and cannot be flipped in the field. Determine which leaf is inactive and which side it is operated from before the order goes in. Door height goes on the order too, since rod lengths are cut to the opening.
3) Should I order the 3928K or the 3928L?
It is a trim choice on the same bolt. The 3928K carries a cast knob for latching and unlatching; the 3928L carries a cast lever. Lever trim is the usual pick where a facility wants lever operation throughout and for anyone wearing gloves or carrying a load; knob trim reads closer to traditional millwork and decorative pairs. Mechanically the bolt underneath is the same 3928 Series.
4) Does the Trimco 3928 cremone bolt come with strikes, or do I buy those separately?
Both strikes ship with it. Each bolt is supplied standard with a mortise strike and a surface strike, so you pick the one that suits the condition at the head and the floor rather than ordering a second part. Mortise strike where the frame or threshold can be prepped, surface strike where you would rather not cut into it, which is the common answer on existing openings and on stone or tile floors.
5) How do I order a Trimco cremone bolt for tall doors?
Give the door height and the rods are made to it. The 3928 Series is built in a wide range of door heights with custom rod lengths, so a tall or transom-height leaf is handled by specifying the opening rather than by cutting a stock rod on site. Measure the finished leaf height, not the rough opening, and state it with the handing.
6) What finishes does the Trimco 3928L cremone bolt come in?
Five: 605 bright brass, 606 satin brass, 613 oil rubbed bronze, 625 bright chrome and 626 satin chrome. Those are standard BHMA finish numbers, so matching the bolt to existing hinges, levers and push plates on the other openings in a building is a matter of matching the number on the record rather than eyeballing the color. Solid brass or bronze underneath the finish.
7) Is the Trimco 3928 cremone bolt heavy enough for a commercial building, or is it a residential part?
It is specified commercial. Construction is solid brass or bronze, cast trim, made in North America, and the series is used in commercial and industrial buildings, government and military facilities, hospitality, multifamily and mixed use, and office buildings. It is a decorative bolt rather than an exit device, so on an egress pair that needs panic hardware it is not a substitute for one.
8) Can a cremone bolt be operated from both sides of the door?
Standard mounting puts the trim on one face. Back-to-back mounting, with operating trim on both sides of the leaf, is offered as a special option on the 3928 Series, so say so at the time of order if both sides need to throw the bolt. On a standard single-face bolt the inactive leaf is released only from the side the trim is on.
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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-3928L-626 come with a warranty?
Absolutely. The Trimco TRI-3928L-626 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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