Self-clinching blind nuts protect nut threads, internal components

PEM® self-clinching blind nuts from PennEngineering® permanently install into thin metal sheets to provide reliable and reusable metal threads for accepting mating screws and completing final component attachment in an assembly. Their blind, closed-end design creates a barrier to protect the nut’s threads against foreign matter and to prevent potential damage to internal components from mating screws.

The carbon steel (Type B) and stainless steel (Type BS) nuts install permanently into aluminum or steel sheets as thin as 0.040 in. The nut is inserted into a properly sized mounting hole in the metal sheet and then sufficient squeezing force is applied using a PEMSERTER® or any standard press until the nut’s flange contacts the mounting sheet. Upon installation, the nut becomes a permanent part of an assembly. No secondary operations are required.

Standard thread sizes are #4-40 through ¼-20 and M3 through M6. Two different shank lengths for each thread size are available to accommodate different sheet thicknesses.