Automatic Butt-Fastening Set 8, bright zinc-plated

The Automatic Butt-Fastening Sets can be used to connect the end faces of two aluminum extrusion profiles from the same Line without mechanical processing. Automatic Butt-Fastening Sets should always be used in pairs. Depending on the profile size and load, several pairs may be necessary.

The Fastener is screwed into a profile groove in the end face, the thread being cut automatically. Use of a lubricant is recommended.
Note: All Fasteners with a through bore for the fastening screw have a counter-clockwise thread on the outside in order to prevent the Fastener twisting when the screw is tightened. The Fasteners with internal threads have a clockwise thread on the outside.

When driving the Fastener with internal thread into a profile, additional anti-torsion protection can be provided by leaving the end protruding out so that it projects into the groove opposite. The Fastener with through bore will then need to be driven far enough into the adjoining profile to accommodate it.