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SK4-F™ fasteners are designed so that two sheets can be quickly joined flat against each other. Typically, several fasteners are used with one standard PEM® threaded F™ flush nut (PEM® Bulletin F) which accepts a screw to secure the sheets against any unwanted movement.

  • Allow detachable spacing of two sheets
  • Clinch feature mounts fastener permanently and flush or sub-flush into metal sheet
  • Unique barrel design allows for quick “panel-on-panel” attachment and detachment
  • Can be clinched into blind hole where concealed head is required
  • Makes horizontal or vertical component mounting possible
  • SK4-F™ fasteners are now available for installation into stainless steel sheets
Unit of Measure

Panel 1 (Bottom) Sheet Thickness Min.

 N/A .039 in

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

 N/A .213 in
Panel 2 (Top) Thickness Range1 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_1.jpg
Panel 1 (Bottom) Sheet Hardness Max.2 N/A HRB 70 / HB 125

Panel 2 (Top) Material

 N/A Any

A Max.

 N/A .039 in a1327_1.jpg

B ± .003

 N/A .177 in

C Max.

 N/A .212 in

D Anvil Hole + .003 - .000

 N/A .184 in

H Nom.

 N/A .237 in

M Max.

 N/A .108 in

N ± .003

 N/A .099 in

S ± .003

 N/A .068 in

Panel 1 (Bottom) Edge Distance C1 Min.

 N/A .150 in a1325_1.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 400 Series Stainless Steel

Standard Finish

 N/A Passivated and/or tested per ASTM A380

CAD Supplier

 N/A PennEngineering® (PEM®)
  • 1 Fastener will provide flush application at minimum sheet thickness.
  • 2 HRB - Hardness Rockwell “B” Scale. HB - Hardness Brinell.