CFHC-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. They require a blind hole of 0.185 in diameter and minimum depth of 0.290 in, and install with a flush flange using a press. The back side of the sheet remains smooth and sealed, satisfying ingress protection requirements. These studs are made of stainless steel, passivated, and certified to ASME B1.1 2A external thread standards. They are recommended for use in sheets with hardness up to HRB 70 / HB 125. Installation tooling includes HAEGER® anvil H-103-8L and PEMSERTER® punch 975200048 with D dimension 0.179 in.
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-832-6 | CFHC-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 |
