CFHC-M3-16 concealed-head self-clinching studs install permanently in aluminum or steel sheets as thin as 1.6 mm to provide reusable M3 x 0.5 threads. The design leaves the opposite sheet surface smooth and unmarred, supporting ingress protection requirements. Installation requires a blind hole of minimum depth and is performed using a PEMSERTER® press or equivalent with specified anvil and punch tooling. The stud is made of stainless steel with a passivated finish and is rated for sheets with hardness up to HRB 70 or HB 125. The thread length is 16 mm, and the minimum sheet thickness for reliable installation is 1.6 mm.
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-M3-16 | CFHC-M3-16 |
| Product Name | Concealed-Head Studs - Types CHA,CFHA,CHC,CFHC - Metric | Concealed Head Studs |
| Attachment | Pressed | Threaded |
| Shape | Round | |
| Design Units | Metric | Metric |
| Metric | M3 | M3; M3 x 0.5 |
