PEM CSS-M3-4 M3 X 4 Concealed Head Standoff (Bag of 100)
PEM® brand M3 X 4 concealed head self clinch standoffs in stainless steel.
These standoffs ensure permanent mounting in metal sheets as thin as 1.6mm..
The fastener head is locked securely in a blind, milled hole and is able to handle substantial loads. The concealed-head feature allows the side of the sheet opposite installation to remain smooth.
Sheet preparation only requires a milled blind hole to the recommended minimum depth. Center-cutting end mills for hole preparation are available from PennEngineering. Installation of the concealed-head studs and standoffs is simple using a hollow anvil and solid punch. Place the head of the fastener in the hole and insert using any standard press. Displaced sheet metal flows smoothly around the head into the undercut.
Image is representative of range.
|MIN Sheet Thickness||1.6mm|
|Hole Tolerance||-0.0mm / +0.08mm|
|Sheet Hardness||HRB 70 / HB 125 or Less|