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.

What types of cable grommet are there?
• 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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Description Price Grommet Type Minimum Panel Thickness 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 Stock No. 543-210
BrandRS PRO
TWD125.00
1 Bag of 100
Bag(s)
Round - - 9.5mm 12.5mm PVC Black - -40°C +130°C - - 1.6mm
RS Stock No. 666-4622
BrandRS PRO
TWD272.00
1 Bag of 100
Bag(s)
Round - - 20.8mm 26mm PVC Black - - - - - 2mm
RS Stock No. 543-197
BrandRS PRO
TWD113.00
1 Bag of 100
Bag(s)
Round - - 4mm 6.4mm PVC Black - -40°C +65°C - - 1.6mm
RS Stock No. 136-7231
Mfr. Part No.01070041010
BrandSES
TWD931.00
1 Bag of 100
Bag(s)
Round - - 12mm 18mm PVC Black - -30°C +70°C PLIO - 3mm
RS Stock No. 241-4580
BrandRS PRO
TWD238.00
1 Box of 100
Box(es)
Round - - 8mm 12mm PVC Black - - - - - 3mm
RS Stock No. 187-9453
Mfr. Part No.633-02030 HV1203-PVC-FR-BK (1000)
TWD537.00
1 Bag of 100
Bag(s)
Round - - 10mm 12mm PVC Black - -30°C +60°C HV - 2mm
RS Stock No. 865-9732
BrandRS PRO
TWD396.00
Each
units
Grommet Strip 2.4mm 1.5mm 3.2mm - Polyethylene Natural 10m - - - - 3.2mm
RS Stock No. 215-6161
Mfr. Part No.FGG.1B.752.DN
BrandLemo
TWD105.00
Each
units
Round - 4mm 5.1mm - Brass Silver - - - 0B - -
RS Stock No. 666-4603
BrandRS PRO
TWD146.00
1 Bag of 100
Bag(s)
Round - - 10.5mm 14mm PVC Black - - - - - 3.4mm
RS Stock No. 136-7382
Mfr. Part No.01070074010
BrandSES
TWD1,044.00
1 Bag of 100
Bag(s)
Round - - 18mm 22mm PVC Black - -30°C +70°C PLIO - 1.5mm
RS Stock No. 406-938
BrandRS PRO
TWD77.00
1 Bag of 5 Metre(s)
Bag(s)
Grommet Strip 4.5mm 1.5mm 3.2mm - Polyethylene Natural 5m - - - - -
RS Stock No. 605-677
BrandRS PRO
TWD340.00
1 Box of 100
Box(es)
Round - - 20.5mm 25mm PVC Black - -40°C +130°C - - 1.5mm
RS Stock No. 666-4590
BrandRS PRO
TWD81.00
1 Bag of 100
Bag(s)
Round - - 6.4mm 10mm PVC Black - - - - - 1.7mm
RS Stock No. 666-4596
BrandRS PRO
TWD45.00
1 Bag of 100
Bag(s)
Round - - 5mm 7.2mm PVC Black - - - - - 1.7mm
RS Stock No. 742-7547
Mfr. Part No.CLIXX M25/W
BrandWISKA
TWD165.00
1 Bag of 10
Bag(s)
Round 0.8mm 9mm 17mm 25mm Polypropylene, Thermoplastic White - -40°C +65°C CLIXX - 3.5mm
RS Stock No. 605-655
BrandRS PRO
TWD218.00
1 Box of 100
Box(es)
Round - - 18.5mm 25mm PVC Black - -40°C +130°C - - 1.6mm
RS Stock No. 136-5881
Mfr. Part No.02520003010
BrandSES
TWD378.00
1 Bag of 100
Bag(s)
Round - - 2mm 6.5mm Polychloroprene Black - -30°C +90°C HELAVIA - 2mm
RS Stock No. 742-7534
Mfr. Part No.CLIXX M25/B
BrandWISKA
TWD165.00
1 Bag of 10
Bag(s)
Round 0.8mm 9mm 17mm 25mm Polypropylene, Thermoplastic Black - -40°C +65°C CLIXX - 3.5mm
RS Stock No. 187-9469
Mfr. Part No.633-02040 HV1204-PVC-FR-BK (1000)
TWD323.00
1 Bag of 100
Bag(s)
Round - - 10mm 12mm PVC Black - -30°C +60°C HV - 4mm
RS Stock No. 161-4076
Mfr. Part No.01330354010
TWD828.00
1 Bag of 100
Bag(s)
Round - - 16mm 22mm PVC Black - -30°C +70°C PLIO - 2mm