BSOS-M3.5-10 - Blind Threaded Standoffs by PennEngineering ® (PEM ® )

The PEM BSOS-M3.5-10 is a premium self-clinching blind threaded standoff engineered to provide permanent, high-strength threads in thin metal panels. Manufactured from durable 300 series stainless steel, this fastener utilizes a proven self-clinching design that installs cleanly with a simple squeezing force into properly sized round holes. Because it features a blind-threaded barrel, the outer sheet surfaces remain completely flush and closed after installation, effectively protecting internal components from debris, dust, and contaminants. The integrated hexagonal head design provides exceptional axial and torque-out resistance, ensuring a reliable, permanent spacing and stacking solution without risking damage, bulges, or thread stripping during assembly.

Self-Clinching Design: Installs permanently into thin metal sheets with a standard squeezing action, removing the need for welding, tapping, or secondary fastening hardware.

Closed Outer Surface: The blind-threaded design ensures that the reverse side of the host panel remains completely flush, unbroken, and sealed against environmental ingress.

High Torque Resistance: Features a specialized hexagonal head that embeds into the host material to deliver superior torsional stability and prevent spin-out.

Corrosion-Resistant Material: Fabricated from 300 series stainless steel, offering high durability and clean aesthetics for harsh or sensitive environments.

No Post-Installation Hole Prep: Mounts securely into standard punched or drilled round holes without requiring chamfering or deburring.