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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®more
Unit of Measure
Items
Panel to Panel, KEYHOLE® Style – Type SKS-R

SELF-CLINCHING KEYHOLE® FASTENERS - HSKC-R™ - Metric

Panel to Panel, KEYHOLE® Style – Type SKS-R

SELF-CLINCHING KEYHOLE® FASTENERS - HSKC-R™ - Metric

Panel to Panel, KEYHOLE® Style – Type SKS-R

SELF-CLINCHING KEYHOLE® FASTENERS - HSKC-R™ - Metric

Panel to Panel, KEYHOLE® Style – Type SKS-R

SELF-CLINCHING KEYHOLE® FASTENERS - HSKC-R™ - Metric

Panel to Panel, KEYHOLE® Style – Type SKS-R

SELF-CLINCHING KEYHOLE® FASTENERS - HSKC-R™ - Metric
Panel 1 (Bottom) Sheet Thickness Min. N/A 1.2 mm
Panel 1 (Bottom) Mounting Hole B + 0.08 N/A 6.02 mm N/A 7.02 mm N/A 8.02 mm N/A 6.02 mm N/A 7.02 mm
Panel 2 (Top) Thickness Range N/A 1.2 to 1.39 mm
Panel 2 (Top) Mounting Hole A1 Nom. N/A 1.5 mm N/A 1.85 mm N/A 2.25 mm N/A 1.5 mm N/A 1.85 mm
Panel 2 (Top) Mounting Hole A2 ± 0.08 N/A 3 mm N/A 3.7 mm N/A 4.5 mm N/A 3 mm N/A 3.7 mm
Panel 2 (Top) Mounting Hole A3 ± 0.08 N/A 5 mm N/A 6 mm N/A 7 mm N/A 5 mm N/A 6 mm
Panel 2 (Top) Mounting Hole A4 Min. N/A 3.75 mm
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N/A 4.6 mm
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N/A 5.5 mm
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N/A 3.75 mm
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N/A 4.6 mm
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Panel 1 (Bottom) Sheet Hardness Max.1 N/A HRB 70 / HB 125
Panel 2 (Top) Material N/A Any
A Max.
N/A 1.2 mm
SKS-R_Dimension.PNG
B ± 0.08 N/A 4.5 mm N/A 5.5 mm N/A 6.5 mm N/A 4.5 mm N/A 5.5 mm
C Max. N/A 6 mm N/A 7 mm N/A 8 mm N/A 6 mm N/A 7 mm
D Anvil Hole + 0.08 N/A 4.65 mm N/A 5.65 mm N/A 6.65 mm N/A 4.65 mm N/A 5.65 mm
H Nom. N/A 7 mm N/A 8 mm N/A 9 mm N/A 7 mm N/A 8 mm
M Max. N/A 3.95 mm N/A 3.95 mm N/A 3.95 mm N/A 4.45 mm N/A 4.45 mm
N ± 0.08 N/A 2.5 mm N/A 3.2 mm N/A 4 mm N/A 2.5 mm N/A 3.2 mm
S ± 0.08 N/A 2.93 mm N/A 3.03 mm N/A 2.93 mm N/A 3.43 mm N/A 3.43 mm
Panel 1 (Bottom) Edge Distance C1 Min. N/A 7 mm
SKS-R_Panel.PNG
N/A 7.5 mm
SKS-R_Panel.PNG
N/A 8 mm
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N/A 7 mm
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N/A 7.5 mm
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Panel 1 (Bottom) Location Tolerance Max. N/A ±.130 in
Panel 2 (Top) Edge Distance C2 Min. N/A 4.1 mm N/A 5.1 mm N/A 6.1 mm N/A 4.1 mm N/A 5.1 mm
Standard Material N/A 300 Series Stainless Steel
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.