CSOS-440-16 is a concealed-head self-clinching standoff designed for permanent installation in steel or aluminum sheets as thin as 0.062 in. (1.6 mm), enabling smooth, unmarred surfaces on the opposite side. It installs using a blind milled hole and requires a PEMSERTER™ or HAEGER™ press for proper mounting. The standoff is made from 300 series stainless steel with no finish, suitable for sheet hardness up to HRB 70 or HB 125. Threads meet ASME B1.1 2B specifications and are compatible with NATO and U.S. military standards. Installations must maintain minimum distance to sheet edges and bends, as specified in PEM™ Tech Sheet C/L To Edge.
These standoffs 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.
Stainless Steel Standoffs
| PennEngineering® | bisco industries | |
|---|---|---|
| Product Category | Posts, Spacers, and Standoffs | Posts, Spacers, and Standoffs |
| Product Number | CSOS-440-16 | CSOS-440-16 |
| Product Name | Stainless Steel Standoffs - Types CSS, CSOS - Unified | Stainless Steel Standoffs |
| Type & Shape | Standoff; Round | Standoff |
