BSO-6440-34ZI - Blind Threaded Standoffs by PennEngineering ® (PEM ® )

The PEM® BSO-6440-34ZI is a self-clinching blind threaded standoff designed for stacking or spacing components while providing a permanent attachment in thin metal sheets. Its closed-end (blind) design features a solid outer wall that acts as a barrier against contaminants, effectively sealing the assembly from dust, dirt, and moisture. This configuration also serves as a positive stop that protects delicate internal components by limiting thread penetration.Installed by being squeezed into a round hole using a standard press, the fastener causes the host material to cold-flow into an undercut for high pushout and torque-out resistance. Once seated, the head remains flush with the mounting sheet, maintaining a clean professional exterior profile without the need for secondary welding or tapping.

Closed-End Design: Provides an environmental seal and protects internal circuitry by preventing screw over-insertion and debris ingress.

Permanent Self-Clinching: Becomes an integral part of the assembly, eliminating the risk of loose hardware falling into sensitive electronics.

Flush Installation: The head of the standoff installs flush with the mounting sheet for a smooth, snag-free external finish.

High-Strength Construction: Manufactured from heat-treated carbon steel for reliable performance in steel or aluminum sheets.

Extended Spacing: Engineered to provide a consistent 1.062-inch distance between panels or components for deep-profile stacking.