CSOS-632-6 is a concealed-head self-clinching stainless steel standoff designed for permanent installation in steel or aluminum sheets as thin as 0.062 in. (1.6 mm), leaving the opposite side smooth and sealed. It installs using a blind hole and requires a HAEGER™ or PEMSERTER™ press with specified anvil and punch tooling. The fastener meets ASME B1.1 2B thread standards and is passivated for corrosion resistance. It is rated for a maximum installation load of 3,600 lbf in 5052-H34 aluminum and 5,000 lbf in cold-rolled steel, with a maximum tightening torque of 8.75 in-lbf. The standoff is compatible with sheet hardness up to HRB 70 / HB 125 and requires a minimum blind hole depth of 0.250 in. for installation.
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-632-6 | CSOS-632-6 |
| Product Name | Stainless Steel Standoffs - Types CSS, CSOS - Unified | Stainless Steel Standoffs |
| Type & Shape | Standoff; Round | Standoff |