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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.

SK4™ standoffs can be used for spacing or mounting of replaceable components. Typically, several standoffs are used with one standard PEM® threaded standoff whichmore
Unit of Measure

Panel 1 (Bottom) Sheet Thickness Min.

 .040 in

Panel 1 (Bottom) Mounting Hole B + .003 - .000

 .213 in
Panel 2 (Top) Thickness Range1 .057 to .064 in

Panel 2 (Top) Mounting Hole A1 Nom.

 .059 in

Panel 2 (Top) Mounting Hole A2 ± .003

 .118 in

Panel 2 (Top) Mounting Hole A3 ± .003

 .197 in

Panel 2 (Top) Mounting Hole A4 Min.

 .148 in
a1326_1.jpg
Panel 1 (Bottom) Sheet Hardness Max.2 HRB 88 / HB 183

Panel 2 (Top) Material

 Any

A ± .003

 .099 in
a1323_1.jpg

B ± .003

 .177 in

C Max.

 .212 in

D Anvil Hole + .003 - .000

 .216 in

H Nom.

 .250 in
L - Length ± .0053 .375 in

M Max.

 .108 in

S ± .003

 .068 in

Panel 1 (Bottom) Edge Distance C1 Min.

 .260 in
a1324_1.jpg

Panel 1 (Bottom) Location Tolerance Max.

 ±.005 in

Panel 2 (Top) Edge Distance C2 Min.

 .160 in

Standard Material

 400 Series Stainless Steel

Standard Finish

 Passivated and/or tested per ASTM A380

CAD Supplier

 PennEngineering® (PEM®)
  • 1 Fastener will provide flush application at minimum sheet thickness.
  • 2 HRB - Hardness Rockwell “B” Scale. HB - Hardness Brinell.
  • 3 The “L” dimension is the height of the installed stud at max grip. The height of the stud will increase if it is installed into thinner material. To calculate “actual L” use this formula: max grip - actual grip + L = “actual L”