---
title: "What Are Split-Panel Strain Relief Bushings Used For?"
description: "Split-Panel Strain Relief Bushings (Trade series (split strain relief bushings)) are used for routing, bundling and strain-relieving cable at a panel entry o…"
url: https://engineeringhardware.com/applications/split-panel-strain-relief-bushings/
source: Engineering Hardware & Fasteners
---

# What Are Split-Panel Strain Relief Bushings Used For?

Cable & Cord Management · Trade series (split strain relief bushings) · Application guide

Typical applications, the industries that specify split-panel strain relief bushings, and how to choose the right size, material and finish for the joint.

Split-Panel Strain Relief Bushings are used for routing, bundling and strain-relieving cable at a panel entry or a fixing point. They are manufactured to Trade series (split strain relief bushings), and selection is driven by the size designation, the fit and tolerance the assembly requires, and the service environment.

- **Primary duty:** Routing, bundling and strain-relieving cable at a panel entry or a fixing point
- **Governing standard:** Trade series (split strain relief bushings)
- **Category:** Cable & Cord Management

Application notes are general engineering guidance. Verify the property class and any approval requirement against your own design calculation.

![What Are Split-Panel Strain Relief Bushings Used For? application image](https://engineeringhardware.com/wp-content/uploads/2026/09/Split-Panel-Strain-Relief-Bushings.webp)

The primary duty of Split-Panel Strain Relief Bushings is routing, bundling and strain-relieving cable at a panel entry or a fixing point. Below: the sectors that specify them in volume, the checklist used to select the right size and material for the application, installation notes, and the known limits of the type.

## Typical Applications for Split-Panel Strain Relief Bushings

The most common settings where these are specified:

- **General machine building:** fastening covers, brackets, motors and sub-assemblies on production equipment.
- **Maintenance & repair (MRO):** a stocked size for servicing existing plant where the original fastener spec must be matched.
- **Fabrication & metalwork:** bench and on-site assembly of steel frames, enclosures and weldments.

Product catalog

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## How to Specify Split-Panel Strain Relief Bushings for Your Application

- **Size:** Match the size to the mating part — see the dimension table below for each option.
- **Material:** Choose the material and finish for the service environment — plated steel for general use, stainless for corrosion resistance.
- **Environment:** For damp, coastal or chemical exposure prefer A4/316 stainless or a suitable coating; indoors, plated steel or A2 is usually sufficient.
- **Standard:** This product is supplied to Trade series (split strain relief bushings). Quoting the standard on your order guarantees interchangeable dimensions between suppliers.

## Where Split-Panel Strain Relief Bushings Are Not the Right Choice

Match the fastener to the load, environment and whether the joint must be reopened; the wrong class or style is the usual cause of joint failure.

Custom manufacturing · Made to drawing

## Need a split-panel strain relief bushings outside the standard range?

With no standard to depart from, the tolerance scheme is the specification — which dimensions are critical, and which are simply nominal.

Minimum order from 2,000 pieces; samples within 7 days of drawing approval.

[Custom cable management manufacturing](https://engineeringhardware.com/custom/cable-management/)[Send a drawing](https://engineeringhardware.com/custom/cable-management/#rfq)

## Technical Drawing

Dimensioned line drawing of hinged split body Split-Panel Strain Relief Bushings to Trade series (split strain relief bushings). Side view and top view, drawn to the dimensions in the table below and redrawn for any size selected.

- **Fitted to:** a cable already terminated
- **Selected by:** panel hole diameter and cable diameter
- **Material:** nylon 6/6

## Dimensions & Specifications (Trade series (split strain relief bushings))

| Body | Fitted to | Selected by | Material |
| --- | --- | --- | --- |
| hinged split body | a cable already terminated | panel hole diameter and cable diameter | nylon 6/6 |
| two-piece split body | a cable already terminated | panel hole diameter and cable diameter | nylon 6/6 |

Inside the plant

## Manufactured in our own plant

This part is cold-formed, threaded, heat-treated and finished in-house. The stages below are where its class and finish are actually decided.

1. ![Wire rod feeding into a cold heading machine](https://engineeringhardware.com/wp-content/uploads/2026/08/09-wire-rod-feed-cold-heading-machine.webp) 01 **Cold heading** Wire rod is drawn to size and cold-formed into blanks. Forming rather than cutting keeps the grain flow continuous around the head, which is where a bolt is most likely to fail. Head dimensions and under-head radius checked at set-up and per shift.
2. ![Thread rolling machine producing bolt threads](https://engineeringhardware.com/wp-content/uploads/2026/08/03-thread-rolling-machine-bolt-production.webp) 02 **Thread rolling** Threads are rolled between hardened dies rather than cut. Rolled threads are stronger in fatigue than cut threads and hold pitch and flank angle far more consistently across a batch. Go / no-go ring gauges to ISO 965 tolerance class 6g.
3. ![Baskets of bolts staged for heat treatment](https://engineeringhardware.com/wp-content/uploads/2026/08/05-heat-treatment-baskets-black-bolts.webp) 03 **Heat treatment** Quench-and-temper brings carbon and alloy steel to the property class ordered — 8.8, 10.9 or 12.9 — with the furnace charge tracked so a finished lot can be traced back to it. Core hardness and tensile tested per lot to ISO 898-1.
4. ![Zinc plated bolts in a treatment basket](https://engineeringhardware.com/wp-content/uploads/2026/08/23-zinc-plated-bolts-treatment-basket.webp) 04 **Surface treatment** Zinc, zinc-nickel, hot-dip galvanizing, black oxide, phosphate and Dacromet, selected against the service environment rather than against the price list. Coating thickness and neutral salt spray hours to ISO 9227.

## Frequently Asked Questions

### What are Split-Panel Strain Relief Bushings used for?

Routing, bundling and strain-relieving cable at a panel entry or a fixing point. They are supplied to Trade series (split strain relief bushings).

### Which industries use Split-Panel Strain Relief Bushings?

They are commonly specified in general machine building, maintenance & repair (mro) and fabrication & metalwork, among other sectors.

### How do I choose the right size of Split-Panel Strain Relief Bushings?

Match the size to the mating part using the dimension table on this page.

### Are Split-Panel Strain Relief Bushings made to a recognized standard?

Yes — they are manufactured to Trade series (split strain relief bushings), so dimensions are interchangeable between suppliers when you quote the standard on your order.

### Can I get a quote for Split-Panel Strain Relief Bushings in the size and material I need?

Yes. Use the technical drawing and quote form on this page to set the size and options, then send the exact configuration to our team for pricing and lead time.

## Related Pages

Product page: [Split-Panel Strain Relief Bushings — specifications & sizes](https://engineeringhardware.com/fastener/split-panel-strain-relief-bushings/)

### Split-Panel Strain Relief Bushings Specification Guides

### Related Fastener Applications