CHA-632-8 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 #6-32 thread. It features a blind installation method that leaves the opposite sheet surface smooth and unmarred, supporting IP-rated sealing. The stud requires a minimum blind hole depth of 0.213 in. and a hole diameter of 0.172 in., with a minimum distance of 0.171 in. from the hole center to the sheet edge. It is recommended for use in aluminum sheets with hardness HRB 50 / HB 89 or less. Installation is accomplished using a standard press or PEMSERTER device.
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 | CHA-632-8 | CHA-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 |
