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
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Unit of Measure

Panel 1 (Bottom) Sheet Thickness Min.

 N/A 1.02 mm

Panel 1 (Bottom) Mounting Hole B + 0.08

 N/A 5.41 mm
Panel 2 (Top) Thickness Range1 N/A 1.45 to 1.62 mm

Panel 2 (Top) Mounting Hole A1 Nom.

 N/A 1.5 mm

Panel 2 (Top) Mounting Hole A2 ± 0.08

 N/A 3 mm

Panel 2 (Top) Mounting Hole A3 ± 0.08

 N/A 5 mm

Panel 2 (Top) Mounting Hole A4 Min.

 N/A 3.75 mm a1326.jpg
Panel 1 (Bottom) Sheet Hardness Max.2 N/A HRB 70 / HB 125

Panel 2 (Top) Material

 N/A Any

A ± 0.08

 N/A 2.51 mm a1323.jpg

B ± 0.08

 N/A 4.5 mm

C Max.

 N/A 5.39 mm

D Anvil Hole + 0.08

 N/A 5.39 mm

H Nom.

 N/A 6.35 mm

L - Length ± 0.13

 N/A 4 mm

M Max.

 N/A 2.75 mm

S ± 0.08

 N/A 1.73 mm

Panel 1 (Bottom) Edge Distance C1 Min.

 N/A 6.60 mm a1324.jpg

Panel 1 (Bottom) Location Tolerance Max.

 N/A ±.130 in±.130 mm

Panel 2 (Top) Edge Distance C2 Min.

 N/A 4.1 mm

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 Available for thicker boards on special order.
  • 2 HRB - Hardness Rockwell “B” Scale. HB - Hardness Brinell.