ABH N4021 Concealed Mount Overhead Holder Stop - Medium Duty, S1 (ALPC)The ABH N4021 Concealed Mount Overhead Holder Stop is expertly designed for medium-duty applications, providing reliable stop, hold-open, and friction functions for moderate traffic and medium weight doors in commercial environments. Its concealed mount design ensures a clean aesthetic, making it ideal for both interior and exterior use.
Constructed from durable steel, the N4021 is built to withstand the demands of everyday use while maintaining its structural integrity. This overhead holder is suitable for single or double-acting doors and features a shock-absorbing spring that cushions the door movement, providing a subtle yet effective stop mechanism at a range of 85° to 110° opening in 5° increments.
In terms of compliance, the N4021 is UL listed for fire door assemblies, ensuring safety and reliability with a fire rating for 20-minute wood and 90-minute hollow metal door assemblies (stop function only). Available in a range of finishes, including S1 (ALPC), it can seamlessly integrate into any architectural design. With a weight of just 2 lbs. per unit, the N4021 combines functionality and ease of installation, making it an excellent choice for architects, contractors, and facility managers seeking quality commercial door hardware.
Concealed Mount Overhead Holder and Stop - Medium Duty, Concealed Mount Medium Duty - Stop, S1 (ALPC)
Concealed mount medium duty overhead holder and stop providing stop, hold-open and friction functions for moderate traffic and medium weight doors in commercial applications.
N4021: Concealed Mount Medium Duty - Stop
Key Features
- Concealed Mount Design
- Medium Duty Construction
- Single or Double Acting
- Shock Absorbing Spring
- UL Listed for Fire Door Assemblies (Stop Function Only)
Specifications
| Model | N4021 |
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| Finish | S1 (ALPC) |
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| Finish Code | S1 |
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| Family | 4000 / N4000 |
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| Material | Steel |
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| Finishes | US3, US4, US9, US10, US10B, US26, US32, US32D, S1/ALPC, S2/BSPC, S3/BZPC, S4/BSPC, S5/DBPC, S8/WSPC, Custom Finishes Available |
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| Functions Available | Stop, hold-open, friction |
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| Door Configuration | Single or double acting |
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| Operating Range | 85° to 110° opening (5° increments) |
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| Door Thickness | 1-3/8" minimum |
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| Shock Absorption | 3° to 5° cushion before dead-stop |
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| Weight | 2 lbs. average per unit |
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| Fire Rating | UL Listed for 20-minute wood and 90-minute hollow metal door assemblies (stop function only). |
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Non-handed design. For interior or exterior use on moderate traffic applications.
Features
- Shock Absorbing Spring
- Single or Double Acting
- UL Listed for Fire Door Assemblies (Stop Function Only)
- Concealed Mount Design
- Medium Duty Construction
Attributes
BRAND_ NAME: ABH
Door Configuration: Single or double acting
Door Thickness: 1-3/8" minimum
Family: 4000 / N4000
Finish: S1 (ALPC)
Finish Code: S1
Finishes: US3, US4, US9, US10, US10B, US26, US32, US32D, S1/ALPC, S2/BSPC, S3/BZPC, S4/BSPC, S5/DBPC, S8/WSPC, Custom Finishes Available
Fire Rating: UL Listed for 20-minute wood and 90-minute hollow metal door assemblies (stop function only).
Functions Available: Stop, hold-open, friction
Material: Steel
Model: N4021
Operating Range: 85° to 110° opening (5° increments)
Shock Absorption: 3° to 5° cushion before dead-stop
Weight: 2 lbs. average per unit
