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ROCKWOOD 570 Dust Proof Strike
Material: Brass;
Finishes: Available in standard architectural finishes;
Features:
- Works with all Rockwood manual and automatic flush bolts
- Removable face plate for use with thresholds
- Adjustable height for carpeted areas
Fastner:
Adjustment nut
Spanner wrench
2 ea. #8 x 1 OH SMS, 2 ea. plastic anchors
2 ea. #8 - 32 x 3/4" OH MS, 2 ea. anchors
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:
- Door Trim and Latch Protection
- Product Type:
- Dust Proof Strikes
- ANSI/BHMA:
- ANSI A156.16, L04021
- Commercial/Residential:
- Commercial
- Product Model:
- 570
- Face Plate:
- 1-3/8" x 2-7/8"
- Product Category:
- Door Trim and Accessories
- Department:
- Door Hardware
Rockwood 570 US26D – Frequently Asked Questions
1) Will the Rockwood 570 dust proof strike work with my flush bolts?
The 570 is made to accept all Rockwood manual and automatic flush bolts, so if the inactive leaf of your pair already has Rockwood bottom flush bolts, this is the matching floor strike. It does not carry a stated fit for other brands' bolts, so match it to Rockwood bolt hardware.
2) Can a dust proof strike be installed where there is a threshold in the way?
Yes on the Rockwood 570. The face plate is removable specifically so the strike can be used with thresholds, letting the body drop in where the plate would otherwise conflict with the threshold material.
3) What happens if the floor is carpeted where the bottom bolt drops?
The 570 is height adjustable for carpeted areas, and it ships with the adjustment nut and spanner wrench you need to set it. That lets you raise the strike so the bolt engages at finished carpet height instead of bottoming into pile.
4) Does the Rockwood 570 meet an ANSI standard for auxiliary door hardware?
It is listed to ANSI A156.16 with the function number L04021, which is the auxiliary hardware standard designation for a dust proof strike. That is the line a spec writer or institutional buyer usually needs on the submittal.
5) What is the closest alternative to the Rockwood 570 dust proof strike from another brand?
The Trimco 3911 Series Adjustable Dust Proof Strike is the nearest cross-brand counterpart. Like the Rockwood 570, it is an adjustable dust proof strike, so it addresses the same floor-mounted bolt application. The 570 is brass with a 1-3/8 inch by 2-7/8 inch face plate, meets ANSI A156.16 L04021, and works with all Rockwood manual and automatic flush bolts. If your flush bolts are Rockwood and you are matching an existing set, the 570 keeps the assembly within one manufacturer's line.
6) I have Detex 50 Series surface vertical rod exit devices. Should I use the Rockwood 570 strike?
For that opening the Detex 96B Strike Kit is the purpose-built choice: it is the bottom dust proof strike for Detex 50 Series surface vertical rod exit devices and belongs to the Detex 90 Strike Series. The Rockwood 570 is specified to work with Rockwood manual and automatic flush bolts, which is a different bottom-bolt arrangement than a vertical rod exit device. Match the strike to the device family driving the bolt.
7) What size hole and floor cutout does the Rockwood 570 face plate cover?
The face plate measures 1-3/8 x 2-7/8 inches, which is the visible footprint at the floor. Size your core drilling so the plate fully covers the opening.
8) Do I need to buy anchors and screws separately for the 570 strike?
No. The Rockwood 570 comes with two #8 x 1 inch oval head sheet metal screws plus two plastic anchors, and two #8-32 x 3/4 inch oval head machine screws plus two anchors, along with the adjustment nut and spanner wrench. That covers both wood/hollow and machine-screw anchoring situations.
9) What finishes does the Rockwood 570 dust proof strike come in?
Seven: 605 Bright Brass, 606 Satin Brass, 612 Satin Bronze, 613 Satin Bronze Oil-Rubbed, 625 Bright Chrome, 626 Satin Chrome, and BSP Black Suede Powder Coat. The body is brass, so the plated brass and bronze finishes match standard architectural trim on the rest of the opening.
10) What else could I use instead of the Rockwood 570 adjustable dust proof strike?
The Trimco 3911 Series adjustable dust proof strike is the closest cross-brand equivalent, also an adjustable floor strike. If your bottom bolt is actually the vertical rod of a Detex 50 Series surface vertical rod exit device rather than a flush bolt, the Detex 96B Strike Kit from the 90 Strike Series is the bottom strike built for that device instead.
11) Which dust proof strike should I pick for a carpeted floor or a door with a threshold?
The Rockwood 570 is built for both conditions: it has an adjustable height for carpeted areas and a removable face plate for use with thresholds, and it ships with the adjustment nut and spanner wrench to set it. The Trimco 3911 Series is also described as an adjustable dust proof strike, so it is the alternative to consider if you are standardizing on Trimco trim elsewhere in the building.
12) Is the Detex 96B strike kit a substitute for the Rockwood 570?
They are not interchangeable in practice. The Detex 96B is sold as a strike kit tied to the Detex 50 Series surface vertical rod exit devices within the 90 Strike Series, so its role is defined by that device. The Rockwood 570 is a commercial brass dust proof strike with a 1-3/8 inch by 2-7/8 inch face plate that pairs with Rockwood flush bolts and carries ANSI A156.16 L04021. Choose by which bolt or device is already in the door rather than treating one as a drop-in for the other.
13) Is this strike suitable for a school or hospital pair of doors, or is it residential grade?
The 570 is a commercial product and Rockwood hardware is normally specified on institutional buildings, offices, retail, educational, detention, sports facilities, hotels and restaurants. For a high-traffic pair of doors with bottom flush bolts, this is the intended grade of strike.
14) Why use a dust proof strike instead of just drilling a hole in the floor?
A dust proof strike like the Rockwood 570 gives the bottom bolt a finished brass socket with a spring-loaded plate that keeps dirt and debris out of the hole, so the bolt keeps dropping cleanly. A bare drilled hole fills with grit and the inactive leaf stops securing. It also gives you a finished 1-3/8 x 2-7/8 inch plate at the floor instead of a raw edge.
15) We are standardizing dust proof strikes across a school. Which option gives us finish matching flexibility?
The Rockwood 570 is offered in Black Suede Powder Coat, 605 Bright Brass, 606 Satin Brass, 612 Satin Bronze, 613 Satin Bronze Oil-Rubbed, 625 Bright Chrome and 626 Satin Chrome, which covers most existing door hardware finishes in an institutional building, and it is a commercial-rated part meeting ANSI A156.16 L04021. The Trimco 3911 Series is the other adjustable dust proof strike to evaluate if your specification already calls out Trimco.
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Does the Rockwood 570 US26D come with a warranty?
Absolutely. The Rockwood 570 US26D is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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