Rubber Grommets

Grommets, sometimes referred to as edging, are pieces of plastic or rubber which cover an edge for functional or aesthetic purposes. Grommets are commonly used in electrical installations, for example, metal back boxes. They are used when wires need to pass through a panel, or where edges need smoothing.
What are they made from?
Most grommets are made from either plastic, rubber or Nylon. PVC is a popular material as it is strong and durable. Most cable grommets are black but there are other colours available, such as clear or grey.
• Round/Oval Grommets fit inside of holes that are cut into panels. They are often used to protect cables from sharp cut edges or to provide strain relief for the cable. When a hole is cut into a panel, it can often leave a sharp edge. The grommet not only makes it look better but also acts as a bumper for cables and wire than pass through. Most round/oval grommets fit by pushing or snapping into place.
• Grommet strips are strips of material that sit over the edge of a panel. They are designed to improve the appearance or to protect the edge. Grommet strips are available in various lengths which are often able to be cut to size. There are heat-activated adhesive strips available too.
• Blind/Blanking grommets are the same as round grommets however they do not have a hole in the middle. They are often used to fill holes that are not currently in use to prevent dust from getting in. Some blanking grommets have a small hole in them. These are referred to as diaphragm grommets. The hole sits snug around the wire to protect it from the surrounding area and to prevent dust from passing through to the electrics behind it.
How to choose a grommet:
If you are looking for round grommets, you need to consider the panel and the hole it is to sit in. The grommet needs to match the same size as the panel hole diameter and the thickness of the panel. The inner hole diameter also needs to meet your specification of how large the wires that pass through will be. Most measurements for grommets are given in millimetres (mm).
If you are considering a grommet strip/edging, the strip needs to fit over the width of the edge of the panel. You also need to ensure that the strip is long enough to cover your desired edge. Most strips can be cut down to size if required.
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Part Details Brand Minimum Panel Thickness Grommet Type Minimum Cable Diameter Maximum Cable Diameter Panel Hole Diameter Material Colour Grommet Strip Length Minimum Operating Temperature Maximum Operating Temperature Series Standards Met Maximum Panel Thickness
RS PRO Black PVC 26mm Round Cable Grommet for Maximum of 20.8mm Cable Dia. RS Pro - Round - 20.8mm 26mm PVC Black - - - - - 2mm
RS PRO Black PVC 12.5mm Round Cable Grommet for Maximum of 9.5mm Cable Dia. RS Pro - Round - 9.5mm 12.5mm PVC Black - -40°C +130°C - - 1.6mm
RS PRO Black PVC 9.5mm Round Cable Grommet for Maximum of 6.4mm Cable Dia. RS Pro - Round - 6.4mm 9.5mm PVC Black - -40°C +135°C - - 1.6mm
RS PRO Black PVC 6.4mm Round Cable Grommet for Maximum of 4mm Cable Dia. RS Pro - Round - 4mm 6.4mm PVC Black - -40°C +65°C - - 1.6mm
RS PRO Black PVC 20mm Round Cable Grommet for Maximum of 16mm Cable Dia. RS Pro - Round - 16mm 20mm PVC Black - -40°C +135°C - - 1.6mm
RS PRO Black PVC 9.5mm Round Cable Grommet for Maximum of 6.4mm Cable Dia. RS Pro - Round - 6.4mm 9.5mm PVC Black - -40°C +130°C - - 2.4mm
RS PRO Black PVC 10mm Round Cable Grommet for Maximum of 6.4mm Cable Dia. RS Pro - Round - 6.4mm 10mm PVC Black - - - - - 1.7mm
8888 Black PVC 19mm Round Cable Grommet for Maximum of 16mm Cable Dia. RS Pro - Round - 16mm 19mm PVC Black - -40°C +135°C - - 1.6mm
RS PRO Black PVC 25mm Round Cable Grommet for Maximum of 18.5mm Cable Dia. RS Pro - Round - 18.5mm 25mm PVC Black - -40°C +130°C - - 1.6mm
RS PRO Black PVC 20mm Round Blind Grommet for Maximum of 16mm Cable Dia. RS Pro - Round - 16mm 20mm PVC Black - -40°C +130°C - - 1.5mm
RS PRO Black PVC 11mm Round Cable Grommet for Maximum of 7.8mm Cable Dia. RS Pro - Round - 7.8mm 11mm PVC Black - - - - - 3mm
SES Black PVC 14mm Round Cable Grommet for Maximum of 7 mm Cable Dia.
  • RS Stock No. 136-7039
  • Brand SES
  • Mfr. Part No. 01070023010
SES - Round - 7mm 14mm PVC Black - -30°C +70°C PLIO - 2mm
RS PRO Black PVC 25mm Round Blind Grommet for Maximum of 20.5mm Cable Dia. RS Pro - Round - 20.5mm 25mm PVC Black - -40°C +130°C - - 1.5mm
RS PRO Black PVC 25mm Round Cable Grommet for Maximum of 18.9mm Cable Dia. RS Pro - Round - 18.9mm 25mm PVC Black - - - - - 1.5mm
SES Black Polychloroprene 18mm Round Cable Grommet for Maximum of 12 mm Cable Dia.
  • RS Stock No. 136-6165
  • Brand SES
  • Mfr. Part No. 02520163010
SES - Round - 12mm 18mm Polychloroprene Black - -30°C +90°C HELAVIA - 1.5mm
RS PRO Black PVC 16mm Round Cable Grommet for Maximum of 12mm Cable Dia. RS Pro - Round - 12mm 16mm PVC Black - - - - - 3mm
SES Sterling Black PVC 22mm Round Cable Grommet for Maximum of 16 mm Cable Dia. SES Sterling - Round - 16mm 22mm PVC Black - -30°C +70°C PLIO - 2mm
RS PRO Black PVC 7.2mm Round Cable Grommet for Maximum of 5mm Cable Dia. RS Pro - Round - 5mm 7.2mm PVC Black - - - - - 1.7mm
8888 Black PVC 4.8mm Round Cable Grommet for Maximum of 3.2mm Cable Dia. RS Pro - Round - 3.2mm 4.8mm PVC Black - -40°C +135°C - - 1.6mm
WISKA White Polypropylene, Thermoplastic 20mm Round Cable Grommet for 6 → 13mm Cable Dia. WISKA 0.8mm Round 6mm 13mm 20mm Polypropylene, Thermoplastic White - -40°C +65°C CLIXX - 3.5mm
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