Self-Retaining Spacers

Self retaining spacers are used to insulate the heads of screws on a PCB (printed circuit board), while providing the desired spacing between the chassis and the PCB.

How do self retaining spacers work?

Self retaining spacers are similar to round spacers or hex spacers, but with special inside diameters that are designed to grip the screw's outside shank. They have snap-in mounting mechanisms that ensure the required space is maintained even when a screw is removed.

The snap-in standoff snaps into the PCB so that it’s locked in position. Self retaining spacers are designed to raise stacked sections, reduce physical contact between two components and create enough space for heat dissipation. Self retaining spacers are available in several spacing heights to suit different applications.

What are self retaining spacers used for?

Self retaining spacers are used in applications that require precise control of product lengths and dimensions. Some typical applications include:

  • PCBs
  • Cable assemblies
  • Telecommunication equipment
  • Computer enclosures
  • Electronic automotive assemblies
  • LED positioning

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Description Price Body Height Fixing Screw Size Chassis Hole Diameter PCB Hole Diameter PCB Thickness Material
RS Stock No. 906-3675
Mfr. Part No.SRS-4-5MM
BrandBivar
MYR0.736
Each (In a Pack of 100)
units
5mm M3 3.7mm 2.9mm - PVC
RS Stock No. 906-3653
Mfr. Part No.SRS-2-145
BrandBivar
MYR2.402
Each (In a Pack of 50)
units
3.7mm #6 4.4mm 3.1mm - PVC
RS Stock No. 906-3671
Mfr. Part No.SRS-4-410
BrandBivar
MYR0.526
Each (In a Pack of 100)
units
10.4mm M3 3.7mm 2.9mm - PVC
RS Stock No. 906-3643
Mfr. Part No.SRS-1-3MM
BrandBivar
MYR0.585
Each (In a Pack of 500)
units
3mm #4 3.6mm 2.7mm - PVC
RS Stock No. 906-3669
Mfr. Part No.SRS-4-205
BrandBivar
MYR2.897
Each (In a Pack of 50)
units
5.2mm M3 3.7mm 2.9mm - PVC
RS Stock No. 906-3628
Mfr. Part No.SRS-1-190
BrandBivar
MYR0.434
Each (In a Pack of 500)
units
4.8mm #4 3.6mm 2.7mm - PVC
RS Stock No. 906-3665
Mfr. Part No.SRS-4-160
BrandBivar
MYR2.639
Each (In a Pack of 50)
units
- M3 3.7mm 2.9mm - PVC