CFHC-M5-25 is a concealed-head self-clinching stud for metric threads, designed to install permanently in aluminum or steel sheets as thin as 1.6 mm, leaving the opposite side smooth and sealed. It features an M5 x 0.8 thread and is recommended for use in sheets with hardness up to HRB 70 / HB 125. Installation requires a blind hole with a diameter of 5.4 mm and a minimum depth of 7.93 mm, and is performed using a press with appropriate HAEGER® or PEMSERTER® tooling. The stud is made from stainless steel with a passivated finish and meets ASME B1.1 and ASME B1.13M thread standards.
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-M5-25 | CFHC-M5-25 |
| 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 |
