Montering
A. Wings
B. Timber
C. Metal substructure
1. The wings behind the drill head, ream up a clearance hole in the timber, which is of larger diameter than the screw thread.
2. The wings are designed to shear off as they strike the substructure.
3. The screw drills its own core hole into the substructure and forms a thread so that the timber will be fastened to the substructure. The ribs under the head trimming the drilled hole for a clean countersink.
Säkerhetsinstruktioner
Transport och lagring
ISO 4042
Quenched and tempered fasteners ≥ 360 HV and tempered case-hardened fasteners with electroplated coatings: Susceptible to hydrogen embrittlement!
Further notice to residual risks can be found on our web page: Notes on use