July 12, 2010
New PEM® micro self-clinching standoff fasteners from PennEngineering® are designed for spacing or stacking applications in compact electronic assemblies.
Type MSO4™ micro self-clinching standoffs are manufactured from 400 series stainless steel and are engineered with threads as small as M1.0/#00 and in lengths as short as 0.080 in. They can be installed into sheet metal, including 300 series stainless steel, as thin as 0.016 in. with maximum hardness up to HRB 88 on the Rockwell B scale.
The fasteners clinch permanently into place when pressed into a properly sized mounting hole with a punch and anvil until the fastener's head is flush with the sheet. Upon installation, they become a permanent part of an assembly, will not loosen or fall out, and provide strong and reusable load-bearing threads, the manufacturer reports.