CSS-M4-16 - Stainless Steel Standoffs by PennEngineering ® (PEM ® )

The PEM® CSS-M4-16 is a high-performance concealed-head self-clinching standoff precision-engineered to establish permanent metric internal threads for component spacing or mounting in thin metal sheet assemblies. Formed from premium 300 Series Stainless Steel, this metric-threaded fastener delivers exceptional physical durability and long-term corrosion resistance, making it ideal for medical equipment, consumer electronics, and defensive enclosure systems.Because the hardware integrates securely into a blind, milled hole, the side of the host panel opposite the installation remains completely smooth and unmarred. During installation via standard parallel pressing tooling, the surrounding sheet metal cold-flows smoothly around the standoff's head into its undercut, providing immense load capacity while safeguarding an immaculate exterior surface aesthetic.

Concealed-Head Design installs directly into a blind, milled hole so the side of the host panel opposite the installation remains completely smooth and unmarked.

Environmental Ingress Protection secures delicate internal circuitry by leaving the external panel face unpierced and fully isolated from dust, liquid, and air.

300 Series Stainless Steel Material delivers heavy-duty structural longevity paired with dependable, long-lasting defense against localized atmospheric corrosion.

High Load-Bearing Capacity creates an unyielding mechanical joint as displaced host metal wraps tightly around the fastener head inside the undercut.