The CFHA-632-8 is a concealed-head self-clinching stud designed for permanent installation in aluminum or steel sheets as thin as 0.062 in. (1.6 mm), providing a reusable #6-32 thread. It installs with a blind hole of 0.130 in. diameter and requires a minimum mounting depth of 0.213 in., leaving the opposite side smooth and sealed. Recommended for aluminum sheets with hardness HRB 50 / HB 89 or less, it is installed via a standard press using a hollow anvil and solid punch. The part belongs to the CFHA series, which features a clinching profile that secures the stud without visible protrusions on the backside.
These studs ensure permanent mounting in metal sheets as thin as .062 in.
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-632-8 | CFHA-632-8 |
| Product Name | Concealed-Head Studs - Types CHA,CFHA,CHC,CFHC - Unified | Concealed Head Studs |
| Attachment | Pressed | Threaded |
| Shape | Round | |
| Design Units | English | English |
| Inch | # 6 | # 6 |
