Detail of Bulkhead frame fitting

Bulkhead frame fittings is one standard cnc turning parts belong to carbon steel truck parts .it is one type of bulhead pipe fitting belong to automobile area fittings.

It main widely used in america market and latin america market .

Bulkhead fitting are used when connecting a tube or hose through a frame rail or other barrier. Other industry terms used for bulkhead are Terminal Bolt, Anchor Fitting, Frame Coupling, and Clamping Studs. .

Here make up several bulkhead frame nipple and remark specific size .

Yuhuan hongqian machinery co.,ltd is professional supply iron ,zinc plated bulkhead/anchor/Frame couplings many years . we are a professional cnc turning parts company with  70 sets cnc machining .

structure of bulkhead frame fittings

 It made of body(thread pipe fittings) , hex nut , and  gasket.

size of bulkhead frame fittings

Regarding the bulkhead coupling , there have more detail could check follow photo , in the market you could choose iron and brass material . iron material is more durable and hardeness more than brass with competive price .
1/2 " bulkhead fittings
bulkhead fittings size form
1-1/8" Bulkhead fittings
bulkhead fitting size detail
1/2-14 Bulkhead fittings

Why choose carbon steel material for bulkhead fittings?

Carbon steel is one of the best material choices for bulkhead fittings, especially in automotive and heavy-duty truck applications. Its superior hardness, tensile strength, and impact resistance allow carbon steel bulkhead fittings to withstand continuous vibration, high pressure, and harsh road environments without deformation or thread wear. This ensures long-term sealing performance in fuel lines, hydraulic systems, brake assemblies, and chassis-mounted fluid transfer points.
Additionally, carbon steel offers a significant cost advantage compared to brass or stainless steel. It delivers high mechanical strength at a more economical price, making it ideal for large-scale manufacturing and fleet maintenance where durability and budget efficiency are equally important. For users seeking reliable performance, long service life, and excellent value, carbon steel bulkhead fittings remain one of the most practical and cost-effective solutions in the automotive industry.

Conclusion

In summary, carbon steel bulkhead fittings remain one of the most reliable and cost-effective solutions for automotive and heavy-duty truck systems. With strong hardness, excellent pressure resistance, and long-term stability under vibration, they guarantee secure sealing performance in fuel lines, hydraulic circuits, brake assemblies, and chassis-mounted fluid transfer points. Compared with brass or stainless steel, carbon steel offers the same mechanical strength at a significantly lower cost, providing clear pricing advantages for large-volume manufacturing and fleet maintenance.

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