PennEngineering® Threaded Standoffs for Stainless Sheets as Thin as 0.63mm TSO4-M25-800

TSO4™ self-clinching standoffs are designed for installation into ultra-thin stainless steel sheets as thin as 0.63 mm. The part series features internal metric threads, heat-treated 400 series stainless steel construction, and a passivated finish tested per ASTM A380. For the M2.5 thread size (M25 code), the standoff has a minimum hole size of 4.22 mm, minimum end distance of 5.8 mm, and a hole depth of 6.4 mm. It is available in lengths up to 19.00 mm, with Style #1 providing thru-threading. Installation requires a punch and anvil; for sheets below 0.63 mm, the anvil must have a B dimension of 4.75 to 4.93 mm. Performance data indicates a minimum pushout force of 25.4 kN and a minimum torque-out of 1.5 N·m when installed in 300 series stainless steel per specified procedures.