Concealed-head self-clinching standoffs install permanently in steel or aluminum sheets as thin as 1.6 mm to provide reusable internal threads, leaving the opposite side smooth and unmarred. They require only a blind milled hole for installation and are designed to meet stringent ingress protection requirements. Available in stainless steel with a passivated finish, they are rated for use in sheet materials with hardness up to HRB 70 / HB 125. Installation is performed using a PEMSERTER® press or equivalent with aligned punch and anvil tooling. The part conforms to ASME B1.13M, 6g external and ASME B1.13M, 6H internal thread standards. Dimensions and tooling specifications are available for M5 thread size.
These standoffs 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.
Stainless Steel Standoffs
| PennEngineering® | bisco industries | |
|---|---|---|
| Product Category | Posts, Spacers, and Standoffs | Posts, Spacers, and Standoffs |
| Product Number | CSOS-M5-6 | CSOS-M5-6 |
| Product Name | Stainless Steel Standoffs - Types CSS, CSOS - Metric | Stainless Steel Standoffs |
| Type & Shape | Standoff; Round | Standoff |
