CFHC-832-16 concealed-head self-clinching studs install permanently in steel or aluminum sheets as thin as 0.062 in. (1.6 mm) to provide reusable threads while leaving the opposite side smooth and unmarred. They require a blind hole with a minimum diameter of 0.179 in. and a minimum depth of 0.290 in. for installation using a PEMSERTER or HAEGER press. The stud features an 0.164-32 thread, is made of stainless steel, and is suitable for sheet hardness up to HRB 70 / HB 125. The installation process displaces sheet material to secure the flange flush with the surface, supporting high tensile and shear loads as rated for cold-rolled steel and 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-832-16 | CFHC-832-16 |
| 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 |
