CFHA-M3-10 concealed-head self-clinching studs install permanently in aluminum or steel sheets as thin as 1.6 mm, leaving the opposite side smooth and unmarred. They are installed using a standard press into a blind hole with a minimum depth of 4.37 mm and a hole diameter of 3.6 mm. The part is designed for use in aluminum sheets with hardness HRB 50 / HB 89 or less and provides a metric M3 x 0.5 thread. The stud length is 10 mm, and the shank diameter is 3.5 mm. Installation requires no access to the back side of the sheet, supporting ingress protection requirements.
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-M3-10 | CFHA-M3-10 |
| Product Name | Concealed-Head Studs - Types CHA,CFHA,CHC,CFHC - Metric | Concealed Head Studs |
| Attachment | Pressed | Threaded |
| Shape | Round | |
| Design Units | Metric | Metric |
| Metric | M3 | M3; M3 x 0.5 |
