Dalco Barrel Bolt 1731 Necked Surface Bolt
The Dalco 1731 Necked Barrel Bolt is a surface-mounted bolt featuring an offset, necked design with a defined bolt throw. It is supplied with a floor strike and is commonly used where the bolt must engage into the floor rather than directly into a door frame.
Key Features
- Necked, offset barrel bolt for floor engagement.
- Defined 23 mm bolt throw for consistent engagement depth.
- Surface-mounted design with visible fixing.
- Supplied with matching floor strike.
Specifications
Suitable Uses
- Inactive leaves of double doors requiring floor engagement.
- Doors where frame fixing is not practical.
- Secondary retention on internal or external doors.
Available Variants
Item Code Family
Frequently Asked Questions
What does a necked barrel bolt do?
A necked barrel bolt offsets the bolt path, allowing it to engage into a floor strike rather than a door frame.
Is the floor strike included?
Yes. A matching floor strike is supplied with the Dalco 1731 barrel bolt.
Does bolt length change the throw?
No. The bolt throw remains 23 mm regardless of overall bolt length.
Additional Information
- Necked barrel bolts are commonly used on the inactive leaf of double doors.
- This product provides secondary retention and is not intended as a primary security device.
- Commonly specified in Australian residential and light commercial applications.
