CHC-M3-10 concealed-head self-clinching studs install permanently in aluminum or steel sheets as thin as 1.6 mm to provide reusable M3 threads. They require a blind hole of minimum depth and allow the opposite sheet surface to remain smooth and unmarred. The stud is designed for use in sheets with hardness up to HRB 70 / HB 125. Installation is accomplished using a standard press with a PEM®-matched tooling setup. The stud's concealed head ensures compliance with ingress protection requirements by maintaining a sealed surface. The part belongs to the CHC series, which shares these installation and performance characteristics across metric thread sizes.
These studs ensure permanent mounting in metal sheets as thin as 1.60mm.
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 | CHC-M3-10 | CHC-M3-10 |
| Product Name | Concealed-Head Studs - Types CHA,CFHA,CHC,CFHC - Metric | Concealed Head Studs |
| Attachment | Pressed | Threaded |
| Shape | Round | |
| Design Units | Metric | Metric |
| Metric | M3 | M3; M3 x 0.5 |
