Dorma Barrel Bolt 2751 Necked
The Dorma 2751 is a necked (offset) surface mounted barrel bolt designed for applications where the bolt must engage into a floor strike rather than a door frame. The offset design allows reliable engagement on the inactive leaf of double doors or where frame fixing is not practical.
Key Features
- Necked, offset barrel bolt for floor engagement.
- Ball bearing assisted bolt movement for smooth operation.
- Supplied with floor strike.
- Surface mounted with visible fixing.
Specifications
Suitable Uses
- Inactive leaves of double doors.
- Doors requiring floor engagement rather than frame fixing.
- Secondary door retention applications.
Available Variants
Item Code Family
Frequently Asked Questions
What does a necked barrel bolt do?
A necked barrel bolt offsets the bolt path, allowing engagement into a floor strike instead of a door frame.
Is the floor strike supplied?
Yes. A floor strike is supplied with the Dorma 2751 barrel bolt.
Does the bolt length change the throw?
No. Bolt throw remains 23 mm regardless of overall bolt length.
Additional Information
- This barrel bolt is intended as secondary door hardware and not a primary security device.
- Correct alignment of the floor strike is critical for reliable operation.
- Commonly specified in Australian commercial and architectural door installations.
