CFHA-M5-12 concealed-head self-clinching studs install permanently in metal sheets as thin as 1.6 mm to provide reusable M5 x 0.8 threads, leaving the opposite side smooth and sealed. They require a blind hole with a minimum diameter of 5.6 mm and minimum depth of 7.93 mm for installation in aluminum or steel sheets rated up to HRB 70 / HB 125. Installation uses a standard press with a hollow anvil and solid punch. The stud is designed for use in aluminum sheets with a hardness of HRB 50 / HB 89 or less, and the concealed head satisfies ingress protection requirements by maintaining a fully sealed surface.
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 | CFHA-M5-12 | CFHA-M5-12 |
| Product Name | Concealed-Head Studs - Types CHA,CFHA,CHC,CFHC - Metric | Concealed Head Studs |
| Attachment | Pressed | Threaded |
| Shape | Round | |
| Design Units | Metric | Metric |
| Metric | M5 | M5; M5 x 0.8 |
