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PEM® KEYHOLE® Standoffs and sheet joining fasteners are designed so that a PC board or panel can be quickly slipped into place and then removed from an assembly by simply sliding the board sideways and lifting it off. These standoffs and fasteners can save valuable time and dramatically reduce the amount of loose hardware required.

SKCF™ standoffs can be used for spacing or mounting of replaceable components. Typically, several standoffs are used with one standard PEM® threaded standoff which accepts a screw to secure the board or component against any unwanted movement.

  • Allow detachable spacing of two sheets
  • Clinch feature mounts fastener permanently and flush into metal sheet
  • Unique barrel design allows for quick attachment and detachment
  • Makes horizontal or vertical component mounting possible
Unit of Measure

Panel 1 (Bottom) Sheet Thickness Min.

 N/A .040 in

Panel 1 (Bottom) Mounting Hole B + .003

 N/A .213 in

Panel 2 (Top) Thickness Range

 N/A .057 to .064 in

Panel 2 (Top) Mounting Hole A1 Nom.

 N/A .059 in

Panel 2 (Top) Mounting Hole A2 ± .003

 N/A .118 in

Panel 2 (Top) Mounting Hole A3 ± .003

 N/A .197 in

Panel 2 (Top) Mounting Hole A4 Min.

 N/A .148 in a1326.jpg
Panel 1 (Bottom) Sheet Hardness Max.1 N/A HRB 70 / HB 125

Panel 2 (Top) Material

 N/A Any

A ± .003

 N/A .099 in a1323.jpg

B ± .003

 N/A .177 in

C Max.

 N/A .212 in

D Anvil Hole + .003

 N/A .216 in

H Nom.

 N/A .250 in

L - Length ± .005

 N/A .188 in

M Max.

 N/A .108 in

S ± .003

 N/A .068 in

Panel 1 (Bottom) Edge Distance C1 Min.

 N/A .260 in a1324.jpg

Panel 1 (Bottom) Location Tolerance Max.

 N/A ±.005 in

Panel 2 (Top) Edge Distance C2 Min.

 N/A .160 in

Standard Material

 N/A 300 Series Stainless Steel

Standard Finish

 N/A Passivated and/or tested per ASTM A380

CAD Supplier

 N/A PennEngineering® (PEM®)
  • 1 HRB - Hardness Rockwell “B” Scale. HB - Hardness Brinell.