Floating Thread Rivet Nuts | Sherex by PEM Tolerance Compensation
Floating Thread Rivet Nuts
Sherex® by PEM® floating thread rivet nuts are engineered specifically for assemblies where hole misalignment between mating components creates installation difficulties. The internally floating thread design allows the threaded insert to self-align within a defined range during fastener engagement, accommodating tolerance variation without requiring rework or adjusted hole positions.
RIV-FLOAT® is a patented product from Sherex® by PEM® that's available in a standard version and a short version, which accommodates applications with tighter backside clearances. RIV-FLOAT® can be installed using standard rivet nut tooling.
Floating thread rivet nuts are a cost-effective alternative to precision hole preparation or manual alignment operations, significantly reducing assembly time and rework rates in complex multi-component structures.
Key Features
- Internally floating thread compensates for hole misalignment between mating parts
- Self-aligning design reduces assembly time and eliminates rework
- Accommodates positional tolerance variation in production environments
- Installed as a standard rivet nut — no special tooling required
- Available in round body design for standard round hole installation
- Thread sizes from M4 - M6 (metric)
- Steel and stainless steel material options



Typical Applications
- Multi-component automotive sub-assemblies with tolerance stack-up challenges
- Electronic equipment chassis assembly with multiple attachment points
- Industrial machinery where component-to-component alignment is variable
- Any assembly where hole-to-hole positional accuracy cannot be consistently achieved
Product Series
The Sherex® by PEM® floating thread range is based on the RIV-FLOAT® technology platform, providing a comprehensive solution for tolerance compensation in a variety of installation scenarios. See the RIV-FLOAT® product family pages for full dimensional and installation data.
RFL - RIV-FLOAT® - Large Flange
RFK - RIV-FLOAT® - Small Flange

