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
SGD20.63
1 Bag of 100
Bag(s)
Round - - 9.5mm 12.5mm PVC Black - -40°C +130°C - - 1.6mm
RS Stock No. 543-282
BrandRS PRO
SGD5.24
1 Bag of 50
Bag(s)
Round - - 6.4mm 9.5mm PVC Black - -40°C +130°C - - 2.4mm
RS Stock No. 874-1156
Mfr. Part No.Rayrim-NR9-0-SP
SGD10.475
Each (On a Reel of 50)
units
Grommet Strip 4.2mm - - - Polyolefin Black 50m -55°C +80°C Rayrim - 4.5mm
RS Stock No. 666-4596
BrandRS PRO
SGD5.19
1 Bag of 100
Bag(s)
Round - - 5mm 7.2mm PVC Black - - - - - 1.7mm
RS Stock No. 543-204
BrandRS PRO
SGD20.60
1 Bag of 100
Bag(s)
Round - - 6.4mm 9.5mm PVC Black - -40°C +135°C - - 1.6mm
RS Stock No. 136-7405
BrandRS PRO
SGD39.48
1 Bag of 100
Bag(s)
Round - - 18mm 22mm PVC Black - -30°C +70°C PLIO - 3mm
RS Stock No. 401-949
Mfr. Part No.DG-15512
BrandRichco
SGD1.167
Each (In a Pack of 50)
units
Round - - 15.9mm 19mm PVC Black - -30°C +70°C DG - 2mm
RS Stock No. 666-4593
BrandRS PRO
SGD3.11
1 Bag of 100
Bag(s)
Round - - 3mm 6mm PVC Black - - - - - 1.7mm
RS Stock No. 543-197
BrandRS PRO
SGD15.01
1 Bag of 100
Bag(s)
Round - - 4mm 6.4mm PVC Black - -40°C +65°C - - 1.6mm
RS Stock No. 666-7365
BrandRS PRO
SGD1.07
Each (In a Pack of 25)
units
Round - 1mm 3mm - Rubber Black - -35°C +220°C - IEC, TSA Certified -
RS Stock No. 605-649
BrandRS PRO
SGD10.52
1 Box of 100
Box(es)
Round - - 16mm 20mm PVC Black - -40°C +135°C - - 1.6mm
RS Stock No. 136-6676
Mfr. Part No.02580356010
SGD223.56
1 Bag of 50
Bag(s)
Round - 1mm 29mm 37mm Polychloroprene Black - -30°C +90°C DG - 2.2mm
RS Stock No. 136-6711
Mfr. Part No.02580360010
SGD427.85
1 Bag of 50
Bag(s)
Round - 1mm 69mm 79mm Polychloroprene Black - -30°C +90°C DG - 3mm
RS Stock No. 187-9469
Mfr. Part No.633-02040 HV1204-PVC-FR-BK (1000)
SGD20.79
1 Bag of 100
Bag(s)
Round - - 10mm 12mm PVC Black - -30°C +60°C HV - 4mm
RS Stock No. 124-4452
Mfr. Part No.02580016010
SGD141.74
1 Bag of 50
Bag(s)
Round - 1mm 39mm 50mm Polychloroprene Black - -30°C +90°C DG - 2.5mm
RS Stock No. 241-4596
BrandRS PRO
SGD51.45
1 Box of 100
Box(es)
Round - - 12mm 16mm PVC Black - - - - - 3mm
RS Stock No. 161-4048
Mfr. Part No.01330351010
SGD27.51
1 Bag of 100
Bag(s)
Round - - 9mm 15mm PVC Black - -30°C +70°C PLIO - 2mm
RS Stock No. 187-9510
Mfr. Part No.633-02080 HV1208-PVC-FR-BK (1000)
SGD15.99
1 Bag of 100
Bag(s)
Round - - 8mm 9.5mm PVC Black - -30°C +60°C HV - 1.5mm
RS Stock No. 187-9627
Mfr. Part No.632-01040 HV2104-PVC-FR-BK (1000)
SGD28.98
1 Bag of 100
Bag(s)
Round - - 3mm 9.5mm PVC Black - -30°C +60°C HV - 3.5mm
RS Stock No. 124-4451
Mfr. Part No.02580015010
SGD91.14
1 Bag of 50
Bag(s)
Round - 1mm 31mm 40mm Polychloroprene Black - -30°C +90°C DG - 2.5mm