ABH N3312A Surface Mount Overhead Holder Stop - Medium Duty Adjustable, Bright BrassThe ABH N3312A Surface Mount Overhead Holder Stop is expertly designed for medium-duty applications, making it an ideal solution for moderate traffic doors that require reliable stop, hold-open, and friction functions. This overhead holder stop features a robust steel construction, ensuring durability and long-lasting performance in various settings.
With its field-adjustable opening range from 85° to 110° (in 5° increments), the N3312A allows for customized operation according to user needs. The integrated shock-absorbing spring provides a gentle cushion effect, offering an additional 3° to 5° of movement before reaching a dead stop, which enhances safety and user comfort.
This non-handed design is UL Fire Door Listed for 20-minute wood and 90-minute hollow metal door assemblies, making it compliant with stringent safety standards. The bright brass finish (US3) not only adds an elegant touch but also resists corrosion, ensuring the hardware remains visually appealing over time.
Included with the unit are sex bolts compatible with doors ranging from 1-3/4" to 1-7/8" thick, allowing for straightforward installation. Whether specified for commercial, institutional, or retail environments, the N3312A is a reliable choice for architects, contractors, and facility managers seeking quality and functionality in door hardware.
Surface Mount Overhead Holder and Stop - Medium Duty Adjustable, Surface Mounted Medium Duty - Hold Open, Bright Brass
Surface mount medium duty overhead stop and holder with field-adjustable opening range for moderate traffic doors requiring stop, hold-open and friction functions.
N3312A: Surface Mounted Medium Duty - Hold Open
Key Features
- Medium Duty Construction
- Field Adjustable Opening
- Shock Absorbing Spring
- Non-Handed Design
- UL Fire Door Listed
Specifications
| Model | N3312A |
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| Finish | Bright Brass |
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| Finish Code | US3 |
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| Family | 3300A / N3300A |
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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 Thickness | 1-3/4" minimum |
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| Operating Range | 85° to 110° opening (5° increments) |
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| Shock Absorption | 3° to 5° cushion before dead-stop |
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| Weight | 3 lbs. average per unit |
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| Fasteners | Sex bolts for 1-3/4" to 1-7/8" doors (included) |
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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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Single acting doors only. For interior use on moderate traffic applications.
Features
- Field Adjustable Opening
- Shock Absorbing Spring
- UL Fire Door Listed
- Non-Handed Design
- Medium Duty Construction
Attributes
BRAND_ NAME: ABH
Door Thickness: 1-3/4" minimum
Family: 3300A / N3300A
Fasteners: Sex bolts for 1-3/4" to 1-7/8" doors (included)
Finish: Bright Brass
Finish Code: US3
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: N3312A
Operating Range: 85° to 110° opening (5° increments)
Shock Absorption: 3° to 5° cushion before dead-stop
Weight: 3 lbs. average per unit
