
Galvanized Steel Electrical Junction Box — OEM Electrical Enclosure Manufacturer
SHENZHEN BENXIN ELECTRONIC HARDWARE CO., LTD.
Product Details

Keywords: electrical junction box, galvanized steel junction box, weatherproof electrical box, electrical enclosure, junction box manufacturer, metal outlet box, electrical conduit box
Product Overview
This hot-selling square junction box is stamped and formed from galvanized steel sheet, giving it the strength, corrosion resistance and electrical grounding performance electricians expect. It ships ready for wiring: multiple knockouts for conduit entry, four mounting tabs with pre-drilled holes, and a screw-secured cover plate. A reliable choice for residential, commercial and industrial electrical installations.
Key Features
- Galvanized steel construction — rust-resistant and suitable for indoor and protected outdoor use
- Pre-stamped knockouts — top and side entries let you open only the conduit ports you need
- Four integrated mounting ears — with pre-drilled holes for fast wall or stud mounting
- Screw-fixed front cover — flush-fitting plate held by four Phillips screws, easy to remove for inspection
- Grounding-friendly metal body — supports reliable equipment grounding in metal raceway systems
- Clean folded seams — consistent box depth and squareness for neat gangable installations
Applications
Used for light fixtures, outlets, switches, HVAC controls, security systems and general branch-circuit wiring in buildings, workshops, factories and utility areas.
Manufacturing & Factory Capability
The box is produced on our metal-stamping and fabrication line:
- Progressive die stamping — high-speed stamping of bodies and covers with consistent dimensions
- Sheet metal forming & folding — box seams folded and clinched on precision bending equipment
- Galvanizing & surface treatment — hot-dip or electro-galvanized finish per your specification
- Secondary operations — knockout punching, thread-forming and hardware insertion
- In-house tooling — molds and dies developed in our tool room for fast product changes
Customization & OEM/ODM
We supply standard sizes from stock and develop custom boxes to your drawing — different knockout patterns, depths, cover styles, materials (SPCC, galvanized, stainless) and private-label packaging are all available. MOQ-friendly trials for new distributors.
Quality Assurance
Dimensions, knockout integrity and coating quality are inspected per batch; sample testing is available on request.
Why Choose Us
- Dedicated stamping + sheet metal factory with complete secondary processing
- Competitive pricing for volume programs and distributor orders
- Reliable export packing with carton strength tested for logistics
Send us your electrical box spec or drawing for an OEM quotation.

Frequently Asked Questions

Yes. We provide OEM/ODM custom manufacturing from your drawings in PDF, DWG, STEP, IGES or STL formats.
- What materials can you machine?
Aluminum, stainless steel (304/316), titanium alloy, copper, brass, POM, PEEK and other engineering plastics. - What is your tolerance standard?
General tolerance ±0.05mm, tight tolerance down to ±0.005mm upon request. - Can you provide material certificates & inspection reports?
Yes, 3.1 material cert, FAI, CMM inspection report are available. - What is your lead time?
Sample: 3–7 working days. Mass production: 7–15 working days, depends on complexity & quantity. - Do you support small batch & prototype orders?
Yes, we welcome prototype, low-volume and custom one-off parts. - What surface finishes can you offer?
Anodizing, sandblasting, passivation, polishing, powder coating, laser marking, deburring. - How do you handle shipping?
We support DHL, FedEx, TNT, sea freight, and can do DDP / DAP terms.
- Is there a minimum order quantity (MOQ)?
We have no strict MOQ. We accept prototype trial orders as low as 1 piece. - How can I get an accurate quotation?
Please send us your 3D STEP/IGES file, 2D drawing with tolerance, material requirement, quantity and surface finish. - Can you help with DFM optimization?
Yes. Our engineers provide free DFM suggestions to reduce machining cost and improve manufacturability. - How long is the quotation valid?
Quotation is normally valid for 30 days, subject to raw material price fluctuation.


Pricing depends on material, dimensions, tolerance, quantity and surface finish. Please send your drawings (PDF/DWG/STEP/IGES) and we will provide an exact quote, usually within 24 hours.

The price is based on material cost + machining time + surface treatment + tooling (if any) + packaging and freight.

Our standard quotes are FOB Shenzhen/Dongguan unless otherwise stated. Air or sea freight can be quoted separately according to your destination.
Our price reflects the material grade, tolerance level, full inspection and finishing quality. If needed, we can suggest cost-saving design changes (e.g. relaxing non-critical tolerances) to reduce the cost.
Yes. We provide tiered pricing — the unit price decreases as the quantity increases. Please tell us your target quantity for the best price.



