Additional information

For sheet metal with max. hardness HRB 80. We recommend dimension M3 for new constructions.

1. Drill or punch the bore, do not countersink or deburr it.

2. On punched bores, do not insert the nut from the side with the burr.

3. Fasten the screw from the opposite side.

Transportation and storage

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