Catalog

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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.

Type SKS-R™ 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 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
  • SKS-R™ fasteners are designed to provide high side-load in verticle component mounting applications
  • SKS-R™ fasteners are available for various top sheet thicknesses and hole sizes
Unit of Measure
Items
Panel to Panel, KEYHOLE® Style – Type SKS-R

SELF-CLINCHING KEYHOLE® FASTENERS - SK4-R™ - Unified
Panel to Panel, KEYHOLE® Style – Type SKS-R

SELF-CLINCHING KEYHOLE® FASTENERS - SK4-R™ - Unified
Panel to Panel, KEYHOLE® Style – Type SKS-R

SELF-CLINCHING KEYHOLE® FASTENERS - SK4-R™ - Unified
Panel to Panel, KEYHOLE® Style – Type SKS-R

SELF-CLINCHING KEYHOLE® FASTENERS - SK4-R™ - Unified
Panel to Panel, KEYHOLE® Style – Type SKS-R

SELF-CLINCHING KEYHOLE® FASTENERS - SK4-R™ - Unified
Panel 1 (Bottom) Sheet Thickness Min. N/A .047 in
Panel 1 (Bottom) Mounting Hole B + .003 - .000 N/A .237 in N/A .277 in N/A .316 in N/A .237 in N/A .277 in
Panel 2 (Top) Thickness Range N/A .040 to .047 in
Panel 2 (Top) Mounting Hole A1 Nom. N/A .059 in N/A .073 in N/A .089 in N/A .059 in N/A .073 in
Panel 2 (Top) Mounting Hole A2 ± .003 N/A .118 in N/A .146 in N/A .177 in N/A .118 in N/A .146 in
Panel 2 (Top) Mounting Hole A3 ± .003 N/A .197 in N/A .236 in N/A .276 in N/A .197 in N/A .236 in
Panel 2 (Top) Mounting Hole A4 Min. N/A .148 in a1326.jpg N/A .181 in a1326.jpg N/A .217 in a1326.jpg N/A .148 in a1326.jpg N/A .181 in a1326.jpg
Panel 1 (Bottom) Sheet Hardness Max.1 N/A HRB 88 / HB 183
Panel 2 (Top) Material N/A Any
A Max.
N/A .047 in SKS-R_Dimension.PNG
B ± .003 N/A .177 in N/A .217 in N/A .256 in N/A .177 in N/A .217 in
C Max. N/A .236 in N/A .315 in N/A .357 in N/A .236 in N/A .315 in
D Anvil Hole + .003 - .000 N/A .183 in N/A .222 in N/A .262 in N/A .183 in N/A .222 in
H Nom. N/A .276 in N/A .315 in N/A .354 in N/A .276 in N/A .315 in
M Max. N/A .156 in N/A .156 in N/A .156 in N/A .175 in N/A .175 in
N ± .003 N/A .099 in N/A .126 in N/A .157 in N/A .099 in N/A .126 in
S ± .003 N/A .115 in N/A .115 in N/A .115 in N/A .135 in N/A .135 in
Panel 1 (Bottom) Edge Distance C1 Min. N/A .276 in SKS-R_Panel.PNG N/A .295 in SKS-R_Panel.PNG N/A .315 in SKS-R_Panel.PNG N/A .276 in SKS-R_Panel.PNG N/A .295 in SKS-R_Panel.PNG
Panel 1 (Bottom) Location Tolerance Max. N/A ±.005 in
Panel 2 (Top) Edge Distance C2 Min. N/A .160 in N/A .201 in N/A .240 in N/A .160 in N/A .201 in
Standard Material N/A 400 Series Stainless Stee
Standard Finish2 N/A Passivated and/or tested per ASTM A380
CAD Supplier N/A PennEngineering® (PEM®)
  • 1 HRB - Hardness Rockwell “B” Scale. HB - Hardness Brinell.
  • 2 See PEM Technical Support section of our web site for related plating standards and specifications.