CHA-832-6 concealed-head self-clinching studs install permanently in steel or aluminum sheets as thin as 0.062 in (1.6 mm) to provide reusable #8-32 threads. Installation requires a blind hole of 0.290 in diameter and minimum depth of 0.290 in, with the flange flush to the sheet surface. The stud allows the opposite side of the sheet to remain smooth and unmarred, supporting ingress protection requirements. Constructed of stainless steel, it is recommended for use in materials with hardness up to HRB 70 / HB 125. Installation is accomplished using a press or PEMSERTER® tool. The part complies with the CHA series design, with clinching profile and dimensional tolerances as specified.
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-832-6 | CHA-832-6 |
| 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 |
