CFHC-832-12 is a concealed-head self-clinching stud designed for permanent installation in steel or aluminum sheets as thin as 0.062 in. (1.6 mm), providing a reusable M8-32 thread. It features a flush, smooth rear surface after installation, making it suitable for applications requiring ingress protection. The stud installs using a blind milled hole with a minimum depth of 0.290 in. and a hole diameter of 0.179 in., and requires a standard press with specified HAEGER® or PEMSERTER® tooling. It is constructed from stainless steel, passivated, and rated for use in materials with hardness up to HRB 70 / HB 125. Installation torque capability is 18 in-lb in cold-rolled steel and 4,000 lbf pull-out strength in 5052-H34 aluminum.
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 | CFHC-832-12 | CFHC-832-12 |
| Product Name | Concealed-Head Studs - Types CHA,CFHA,CHC,CFHC - Unified | Concealed Head Studs |
| Attachment | Pressed | Threaded |
| Shape | Round | |
| Design Units | English | English |
| Inch | # 8 | # 8 |
