Hollow section fastener BoxBolt®
BoxBolt steel zinc plated hexagon head
HLSECTFSTNR-BOXBOLT-(4-26)-(A2K)-M8
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Never exceed the permitted loads. Always make sure that the steel structure can withstand the required loads before using hollow section fasteners.
General technical approval Z-14.4-482
Art. no.: 04858061 no technical approval
BoxBolt® is a registered trademark of Access Technologies Limited, GB.
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For fastening to hollow sections or other hard-to-reach components. The fastener is especially suitable for applications where the installation point is only accessible from one side.
The connection is produced by tightening the screw while bracing the sleeve collar, resulting in expansion of the sleeve. The tightening torques can be applied using a torque wrench. The hollow section fastener is only approved for single use.
We recommend the BoxSokTM special tool for installation.
 | |
Thread type x nominal diameter | M8 |
Screw length (l) | 50 mm |
Width across flats (S) | 13 mm |
Width across flats, sleeve (SHü) | 22 mm |
Sleeve diameter (dHÜ) | 13.5 mm |
Collar thickness (kHü) | 6 mm |
Sleeve length (lHü) | 40 mm |
Min./max. grip length (lk) | 4-26 mm |
Nominal drill hole diameter | 14 mm |
Tightening torque | 25 Nm |
Min. hole distance (A) | 35 mm |
Min. edge clearance (B) | 13 mm |
Material | Steel |
Surface | Zinc plated |
RoHS-compliant | Yes |
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