PEM BF™ & BFS™ Fine Finish Blind Nuts
PEM BF™ and BFS™ Fine Finish Self-Clinching Blind Nuts feature a bur-free design that delivers a cleaner conductive surface and higher dielectric breakdown margin. BF (steel) and BFS (stainless steel) blind nuts are available in M3 to M8 thread sizes and provide dependable performance during high potential (hipot) testing and in service. A large flange design provides a greater bearing surface for secure thread retention in soft copper and aluminum busbar panels, without damage or deformity to the material. The closed-end design of these PEM fasteners seals threads against foreign matter and contamination, while limiting screw penetration depth to protect sensitive internal components.
Features
- Designed for sensitive applications where metal chips cannot be tolerated
- Oversized mounting holes to provide better performance in soft material
- Large flange design provides a greater bearing surface
Applications
- High-voltage battery systems in electric vehicles (EVs)
- Copper busbar assemblies
- Aluminum busbar panels
- Power distribution equipment
- Energy storage systems (ESS) and battery packs
Specifications
- M3 to M8 thread sizes
- Steel (BF) for sheets HRB 80 / HB 150 or less
- 300 series stainless steel (BFS) for sheets HRB 70 / HB 125 or less
- 1mm minimum sheet thickness
- Free-running locking thread feature available
Dimensions
Videos
Published: 2026-08-05
| Updated: 2026-08-05