You may also like
ROCKWOOD 2942 Automatic Flush Bolt Set
Material: Brass, stainless steel;
Finishes: US3, US4, US10, US10B,US10BE, US26, US26D, US32D;
Fastner:12 ea. #8 x 3/4" FH combo screws, 4 ea. #8 - 32 x 1/2" FH MS, 6 ea. #10 x 1" FH WS, 2 ea. #6 - 8 plastic anchors
Features:
- For Wood Doors labeled B, C, D & E up to 4'w x 8''h
- Non-handed
- Fully automatic—opening active door retracts top and bottom bolts
- Override feature prevents damage to doors or bolts if bolt heads are blocked from entering strikes
- Bolt head rods are adjustable up to 3/8"
- Thermal lock automatically locks the inactive door under high heat conditions due to fire
Options: No. 2942 can be used with the No. 570 Dust Proof Strike (shown on page E4).
ROCKWOOD OVERVIEW
Rockwood products are normally used on all types of institutional buildings, offices, retail, educational, detention, sports facilities, hotel and restaurant, and finer residences.
ENVIRONMENTAL MANAGEMENT
ASSA ABLOY is commited to protecting the quality of the environment as well as the health and safety of its employees, customers, and the community. Please see our Environmental Health and Safety Policy for details on how we are dedicated to this commitment.
RESOURCES & DOWNLOADS
Manufacturer Resources
Product Specs
- Product Group:
- Door Trim and Accessories
- Subcategory:
- Bolts and Latches
- Product Subgroup:
- Flush Bolts
- Product Type:
- Flush Bolts
- ANSI/BHMA:
- ANSI A156.3, Type 25
- Commercial/Residential:
- Commercial
- Product Model:
- 2942
- Product Category:
- Door Trim and Accessories
- Department:
- Door Hardware
Rockwood 2942 US26D – Frequently Asked Questions
1) Do I have to order the Rockwood 2942 flush bolt handed for a left or right inactive leaf?
No handing to specify. The 2942 set is non-handed, so one part number covers either inactive leaf.
2) What is the difference between an automatic flush bolt like the Rockwood 2942 and a manual flush bolt?
With the 2942, opening the active door retracts both the top and bottom bolts on the inactive leaf automatically, so staff never have to bend down and flip a lever. A manual set, like the Ives FB358 or the Trimco 3999 corner mount, has to be operated by hand at each bolt. Automatic sets are the usual choice on high traffic pairs where the inactive leaf gets opened often; manual sets are simpler and typically used where the inactive leaf stays shut.
3) What happens to the Rockwood 2942 flush bolts in a fire?
The 2942 has a thermal lock that automatically locks the inactive door under the high heat of a fire, so the leaf stays secured in the frame even if the bolts were retracted. It is intended for labeled wood doors in the B, C, D and E classes.
4) Do I need a dust proof strike at the floor with the Rockwood 2942 flush bolt?
The bottom bolt drops into the floor, and Rockwood lists the No. 570 dust proof strike as the companion for the 2942. It is a separate item, so add it to the order if the threshold or floor needs a strike.
5) What if the floor or frame is slightly out of alignment and the 2942 bolt heads do not line up with the strikes?
Two things help. The bolt head rods are adjustable up to 3/8 inch, which takes up normal out of plumb or floor variation. And there is an override feature so if a bolt head is blocked from entering its strike, the door or the bolt is not damaged.
6) What is the closest equivalent to the Rockwood 2942 automatic flush bolt set for a pair of wood doors?
The Ives FB41 is the nearest match: it is an automatic flush bolt set for wood doors with a 3/4 inch throw, carrying a 90 minute fire rating. The Rockwood 2942 is likewise a non-handed automatic flush bolt set for wood doors, built to ANSI A156.3 Type 25, where opening the active leaf retracts both the top and bottom bolts and a thermal lock secures the inactive leaf under fire heat. Both are top-and-bottom sets for the inactive leaf of a wood pair, so the decision usually comes down to finish and the strike preparation already in the floor.
7) Is there a simpler manual flush bolt I can use in place of the Rockwood 2942 on a wood pair?
Yes, if the opening does not require the inactive leaf to release automatically. The Rockwood 2942 is fully automatic, meaning opening the active door retracts both bolts, and it includes a thermal lock that secures the inactive leaf under fire heat. A manual alternative is the Ives FB358, a manual flush bolt with a 3/4 inch throw and 1/2 inch bolt diameter that is fire rated. Trimco also offers 6 inch corner mount flushbolts, the 3999 with a rounded end and the 3999SE with a square end. With manual bolts the staff has to throw and retract the inactive leaf by hand, so confirm your code official accepts manual bolts on that opening before substituting.
8) Does the Rockwood 2942 flush bolt meet ANSI/BHMA for a commercial spec?
It is specified to ANSI A156.3, Type 25, and it is a commercial grade product. That is the designation to put on a submittal for an automatic flush bolt on a labeled wood pair.
9) Does the Rockwood 2942 flush bolt set come with mounting screws?
Yes, the fasteners are in the box: 12 of the #8 x 3/4 inch flat head combo screws, 4 of the #8-32 x 1/2 inch flat head machine screws, 6 of the #10 x 1 inch flat head wood screws, and 2 #6-8 plastic anchors.
10) What finishes can I get the Rockwood 2942 flush bolt in to match the rest of my door hardware?
Three finishes are orderable: 626 satin chrome, 630 satin stainless steel, and BSP black suede powder coat. The 2942 is made of brass and stainless steel.
11) I want the inactive leaf key controlled instead of automatic. What should I use instead of the Rockwood 2942?
An automatic bolt like the 2942 releases whenever the active door opens, so it gives no key control. For a cylinder operated flushbolt on a wood pair, look at the Adams Rite 1877, or the Adams Rite 1870 Series cylinder operated flushbolt with key control.
12) I only need to replace the top bolt on a wood pair. Do I have to buy the whole Rockwood 2942 set?
The Rockwood 2942 is sold as a set covering both the top and bottom bolt positions on the inactive leaf. If only the head position needs replacing on a wood pair, the Ives FB42 is a top automatic flush bolt for wood doors with an auxiliary fire latch. For a bottom-only replacement on metal, the ABH 1858 is a universal bottom fire bolt with manual operation. Mixing a single bolt into an existing set means matching the throw and rod length already in the door, so verify the leaf prep before ordering a partial.
13) Can I use a Delaney or Emtek flush bolt instead of the Rockwood 2942?
They serve a different purpose. The Rockwood 2942 is a commercial automatic set built to ANSI A156.3 Type 25 for labeled wood doors, with an override feature that prevents damage if the bolt heads are blocked from entering the strikes. The Delaney offerings are manual mortise-in and surface bolts, including a 7 inch slide type mortise in flush bolt, a 6 inch square end solid brass flush bolt, and a 7 inch mortise extension flush bolt; Emtek likewise catalogs manual flush bolts. Those are hand-operated residential and light commercial bolts, so they do not provide the automatic retraction or thermal locking behavior a labeled commercial pair needs.
14) What should I specify if I need key control over the inactive leaf rather than the automatic action of the Rockwood 2942?
The Rockwood 2942 retracts its bolts automatically when the active leaf is opened, with no key involved. If the inactive leaf needs to be secured or released by cylinder, Adams Rite offers the 1870 Series cylinder-operated flushbolt with key control, and the 1877 cylinder-operated flushbolt built for paired wood doors. For a two-point arrangement, the Adams Rite MS1880/MS1881 flushbolts use an interlock mechanism and the MS2180 Series is an auto-release two-point flushbolt with a Smartlock mechanism.
15) Will an International Door Closers FB-1202 work in the same prep as the Rockwood 2942?
Not without checking the mortise. The IDC FB-1202 is a flush bolt with a positive U joint actuator, 5/8 inch throw, 1/8 inch offset with a 7/8 inch backset, square end, supplied with a guide. The Rockwood 2942 is an automatic set whose bolt head rods are adjustable up to 3/8 inch and which ships with its own fastener pack of 12 #8 x 3/4 inch FH combo screws, 4 #8-32 x 1/2 inch FH machine screws, 6 #10 x 1 inch FH wood screws, and 2 #6-8 plastic anchors. The differing throw and backset mean the existing edge mortise and floor strike locations need to be verified before swapping either direction.
16) How do the finish choices on the Rockwood 2942 compare to other flush bolts if I am matching existing hardware?
The Rockwood 2942 set is stocked in 626 satin chrome, 630 satin stainless steel, and BSP black suede powder coat, and it is made of brass and stainless steel. Among the comparable flush bolts, the Ives FB457 is offered with a 12 inch rod length for metal doors in US 12 finish, and the Orca Hardware 86SQ Series is a 6 inch flush bolt with radius corners. If you are standardizing a building on satin stainless, the 630 option on the 2942 is the common match for commercial lever and exit hardware.
How fast can I get the Rockwood 2942 US26D 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 Rockwood 2942 US26D come with a warranty?
Absolutely. The Rockwood 2942 US26D 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 Rockwood 2942 US26D?
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 Rockwood 2942 US26D 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.