CFHC-M4-16 is a concealed-head self-clinching stud for metric threads, designed for permanent installation in aluminum or steel sheets as thin as 1.6 mm. It features a M4 x 0.7 thread, a shank length of 16 mm, and installs flush with the sheet surface, leaving the opposite side smooth. The stud is made of stainless steel and is passivated for corrosion resistance. Installation requires a blind hole with a diameter of 4.03 mm and a minimum depth of 7.37 mm, using a HAEGER® or PEMSERTER® press with compatible tooling. The fastener is rated for use in sheets with a maximum hardness of HRB 70 or HB 125, and the installation process ensures sealed, ingress-protected assemblies.
These studs ensure permanent mounting in metal sheets as thin as 1.60mm.
The fastener head is locked securely in a blind, milled hole and is able to handle substantial loads. The concealed-head feature allows the side of the sheet opposite installation to remain smooth.
Sheet preparation only requires a milled blind hole to the recommended minimum depth. Center-cutting end mills for hole preparation are available from PennEngineering. Installation of the concealed-head studs and standoffs is simple using a hollow anvil and solid punch. Place the head of the fastener in the hole and insert using any standard press. Displaced sheet metal flows smoothly around the head into the undercut.
| PennEngineering® | bisco industries | |
|---|---|---|
| Product Category | Studs | Studs |
| Product Number | CFHC-M4-16 | CFHC-M4-16 |
| Product Name | Concealed-Head Studs - Types CHA,CFHA,CHC,CFHC - Metric | Concealed Head Studs |
| Attachment | Pressed | Threaded |
| Shape | Round | |
| Design Units | Metric | Metric |
| Metric | M4 | M4; M4 x 0.7 |
