CUSTOM RUBBER & SILICONE MANUFACTURING

Custom rubber silicone square cable grommet wire tidy

A custom component for your assembly.

Define the mating surfaces, dimensions and working conditions. ETOL manufactures the part to the agreed design and material.

  • Factory direct
  • Made to order
  • Drawing & sample support

Share the part, its application and your estimated quantity.

Customize the fit, material and finish

Vulcanization workshop illustration with green molding presses and blue collection bins

Material & hardness

Selected for the contact, temperature and movement

Color & finish

Define the visible surfaces and intended color

Shape & dimensions

Develop holes, lips and walls around the mating parts

Mounting & fit

Match the attachment and installation method

Product Overview

A square cable grommet can provide a custom interface that tidies a wire route through a matching cutout. The retaining profile should follow the panel thickness and corner geometry, while the passage accommodates the finished cable or bundle. The square outside shape needs more definition than a single width measurement.

Check the opening corners and the space behind the panel. A rear lip may remain folded where a nearby rib restricts access. The wire route should also leave enough room to turn without pulling the grommet sideways once it is seated.

Prepare the cutout and fit the retaining section around the complete perimeter. Route cables through the intended assembly sequence and use the supports required by the design. During maintenance, inspect the corners and passage for displacement after wiring changes. Replace with the matching square profile and internal opening rather than enlarging a different grommet or forcing an additional bundle through a passage that no longer suits the route.

Material options
Custom silicone or rubber formulation, with dimensions and color adapted to the mating component.
Hardness range
Silicone: 20–80 Shore A; rubber: 30–90 Shore A. Assess the grade against this fit requirement: A rear lip may remain folded where a nearby rib restricts access.
Custom profile & fit
The retaining profile should follow the panel thickness and corner geometry, while the passage accommodates the finished cable or bundle.
Assembly considerations
Route cables through the intended assembly sequence and use the supports required by the design.
Design check
Check the opening corners and the space behind the panel.

Photos illustrate structure or material only. The retaining profile should follow the panel thickness and corner geometry, while the passage accommodates the finished cable or bundle. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.

Choosing a material or hardness? Explore the selection guide →

FIND THE RIGHT FIT

Round Grommet Size Catalog

Choose a profile to compare part numbers and dimensions. Inch and metric sizes are listed in separate tables.

Type D Round Grommets in Inches

274 entries for Type D round through-hole grommets. Original fractions are retained, and exactly equivalent standard inch fractions replace decimal values where possible. Other values remain decimal inches.

DIMENSION GUIDE
Type D Round Grommets in Inches: plan view on the left and section view on the right, with labels matching the dimension key.
Profile reference only. Use the dimensions listed for each part number.
PRODUCT APPEARANCE
Generated product visualization of a black rubber Type D grommet with two round flanges, a panel mounting groove and an open central bore.
Illustrative product rendering. Refer to the table for dimensions.
P/NID (C)GD (A)OD (D)GW (B)T (E)Unit
RG20017/645/321/43/3211/64inch
RG20027/645/321/43/6411/64inch
RG20035/327/329/323/327/32inch
RG20041/83/165/161/163/16inch
RG20059/641/45/165/641/4inch
RG20065/321/45/167/6413/64inch
RG20071/83/1611/321/167/32inch
RG20081/81/411/321/167/32inch
RG20091/81/411/323/321/4inch
RG20109/643/1611/321/163/16inch
RG20113/169/3213/323/325/16inch
RG20123/165/1613/321/167/32inch
RG20133/169/327/163/327/32inch
RG20143/165/167/161/163/16inch
RG20153/165/167/161/43/8inch

Can't find the right size? Contact us for custom dimensions tailored to your requirements.

From part requirements to production

01

Define the part

Identify key dimensions, mating surfaces and quantity

02

Review material & tooling

Agree the compound and manufacturing approach

03

Evaluate the sample

Review the fit and agreed requirements in the assembly

04

Produce & inspect

Manufacture and check against the approved requirements

Review the intended assembly

Working conditions

Identify temperature, contact fluids and repeated movement.

Material and structure

Consider hardness together with wall thickness and support.

Installation

Check access, mating dimensions and the fitting sequence.

Ordering this custom component

Can the shape be adjusted to my mating parts?

Yes. Show the receiving opening, contact surfaces and clearance limits. We can review the dimensions and retaining features around the intended fit.

Which details should be agreed before tooling?

Agree the critical dimensions, material, hardness, visible surfaces and sample requirements. Explain how the part is installed and which interfaces control its function.

Can a sample help define the replacement?

A sample can help explain the structure. Compare it with the assembly because wear, swelling or compression may have changed its original dimensions.

How is the quotation for this part determined?

The material, part geometry, tooling, quantity and finishing affect the quotation. Include the intended batch size and delivery destination when describing your requirements.

DISCUSS THIS COMPONENT

Describe the part you need.

Share the fit, operating conditions and quantity with our manufacturing team.

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Send your requirements
and selected drawings

All files and photos you share with us are handled under strict confidentiality procedures and will not be disclosed to any third party.

DISCUSS THIS COMPONENT

Request a Custom Quote

You can also email us directly at [email protected].