STH

Self piercing hat nut

With its compact and lightweight design, the RIFAST hat nut is the newest innovation for watertight mechanical joining ensuring covering of the male fastener. Both in steel and aluminum applications, the self piercing nut enables clinching without a pre-pierced hole, which reduces process time while ensuring a flat supporting surface for the part to be fastened. 

The deep drawn lightweight hat ensure watertight conditions (IPX7) for the screw’s thread end. The watertightness performance can be validated at the RIFAST application lab with a dedicated testing device by applying 1,000 mm water column on the installed hat nut for a defined time window (30 minutes = IPX7, 1 or 2 hours = IPX8).