The M&K Standard Metal Junction Box is designed for general electrical installations where practical structure, broad compatibility, and stable supply are important. It is suitable for switch and socket mounting, conduit connection points, and branch wiring protection in residential, commercial, and light industrial applications.
With support for common formats such as 3″x3″, 4 square, and 1–4 gang options, this product offers a reliable solution for customers who need a standard box range with room for project-based customization.
Key Features
- Universal design for a wide range of electrical applications
- Available in 1 gang, 2 gang, 3 gang, and 4 gang options
- Supports common 3″x3″ and 4 square formats
- Durable metal construction for dependable wiring protection
- Suitable for both surface-mounted and flush-mounted installation
- OEM production available for depth, knockout, and thickness adjustments
Available Configurations
This standard metal junction box can be supplied in multiple structural and size directions to suit different installation requirements and market needs.
Typical Applications
Customization Options
M&K can adjust this product according to different project demands and sales markets, helping customers build a product range that is more aligned with installation habits and purchasing preferences.
- Material thickness
- Box depth
- Gang configuration
- Knockout pattern
- Mounting structure
- Surface finish
- OEM marking
- Export packaging
Why Choose M&K
For buyers looking for a standard metal junction box with reliable structure and flexible supply support, M&K offers a practical combination of stable manufacturing, OEM capability, and export-oriented service.

FAQ
What is this standard metal junction box mainly used for?
It is mainly used for general electrical wiring, switch and socket installation, and conduit connection protection in residential, commercial, and light industrial projects.
Can different gang options be supplied?
Yes. M&K can supply 1 gang, 2 gang, 3 gang, and 4 gang versions according to project requirements.
Can thickness or knockout layout be customized?
Yes. Custom thickness, depth, and knockout layout can be arranged for OEM and project-based orders.
Is this model suitable for both distributors and contractors?
Yes. This standard series is suitable for wholesalers, importers, contractors, and OEM customers looking for a widely applicable box type.




