Our Zinc-Plated Steel Bulkhead Fitting is designed for secure through-panel installation and long-lasting sealing performance. Manufactured from precision-machined carbon steel and finished with anti-corrosion zinc plating, it delivers excellent strength, durability, and resistance to harsh environments. The fitting includes a stamped-steel washer for stable sealing and is available in NPT or UNF threads. Ideal for hydraulic oil lines, gas lines, equipment panels, control boxes, and heavy-duty machinery.
Material: High-strength carbon steel
Finish: Durable zinc plating for corrosion resistance
Washer: Stamped-steel sealing washer
Thread Options: NPT / UNF (custom threads available)
Installation: Quick through-panel mounting
Applications: Hydraulic systems, pneumatic lines, machinery panels, instrumentation, automotive & marine equipment
| Item | Details |
|---|---|
| Material | Carbon steel |
| Surface Finish | Zinc plated (silver or yellow zinc optional) |
| Thread Types | NPT / UNF (custom: NPTF, BSPT, BSPP, Metric) |
| Washer Type | Steel stamped washer |
| Working Pressure | Up to 1.0 MPa (varies by size) |
| Temperature Range | -40°C to +120°C |
| Panel Thickness | 0.5 mm – 12 mm (customizable) |
| Size Range | 3/4″ – 1-1/8″ |
| Standards | ANSI/ASME thread standards |
| Applications | Hydraulic, pneumatic, instrumentation, industrial equipment |
| Packaging | Carton / pallet / bulk packaging available |
| Origin | Yuhuan hongqian (factory direct supply) |
Corrosion-resistant zinc plating for harsh outdoor or industrial environments.
Precision CNC machining ensures accurate thread angle, taper, and smooth engagement.
Strong and stable sealing with stamped-steel washer.
Fast installation — designed for panel mounting and equipment pass-through.
Customizable options for threading, dimensions, and surface treatments.
Consistent quality with 100% thread and dimension inspection before shipment.
Hydraulic equipment
Pneumatic systems
Machinery panels and control boxes
Oil & gas pipelines
Marine and automotive assemblies
Industrial instrumentation
Equipment cabinets and enclosures
| Item no | Outer thread size | Inner thread size | LENGTH INCH | HEX INCH |
|---|---|---|---|---|
| 3/4 bulkhead fitting | 3/4-16UNF | 1/4-18NPT | 35.6mm | 31.75mm |
| 3/4 bulkhead fitting | 3/4-16UNF | 1/4-18NPT | 24.13mm | 25.4mm |
| 3/4 bulkhead fitting | 3/4-16UNF | 1/4-18NPT | 38.1mm | 25.4mm |
| 1/2 bulkhead fitting | 1-1/8-12UNF | 1/2-14NPT | 38.1mm | 31.75mm |
| 1-14 bulkhead fitting | 1-14UNF | 3/8-18NPT | 35.6 mm | 31.75mm |
| 1-1/8 bulkhead fitting | 1-1/8-12UNF | 1/2-14NPT+3/8+18NPT | 38.1 mm | 31.75mm |
Q: What thread types are available?
A: Standard options are NPT and UNF. We also offer NPTF, BSPT, BSPP, and Metric threads upon request.
Q: Can I request different washers or seals?
A: Yes, we can supply rubber, PTFE, copper, or aluminum sealing washers depending on your application.
Q: Do you offer zinc plating in different colors?
A: Yes—silver zinc, blue zinc, or yellow zinc are available.
Q: Do you support small batch orders?
A: Yes, small batches and prototypes are supported depending on size.
