Carbon steel oil plug bolt

O processo de encabeçamento a frio é um dos novos processos para a maquinagem sob pressão com menos ou nenhum corte
metal. É um método de processamento que utiliza a deformação plástica do metal sob a ação de
forças externas e, com a ajuda de moldes, redistribui e transfere o volume de metal para formar
as peças ou os espaços em branco necessários. O processo de encabeçamento a frio é o mais adequado para a produção de
elementos de fixação, tais como cavilhas, parafusos, porcas, rebites, cavilhas, etc.

Carbon steel oil plug bolt are heavy-duty fasteners designed for sealing oil pans, transmission systems, and other fluid compartments in automotive, industrial, and machinery applications. They are known for their high strength, durability, and cost-effectiveness compared to stainless steel or alloy alternatives.

1. Material & Construction

• Base Material: Made from medium/high-carbon steel (e.g., Grade 5, Grade 8, or ASTM A574) for superior tensile strength.

• Surface Treatment: Typically zinc-plated (electro-galvanized), black oxide, or plain oil-finished for basic corrosion resistance.

• Tipo de rosca: Standard metric (M12x1.75, M14x1.5) or SAE (1/2″-20, 3/4″-16) threads, with fine or coarse pitch options.

• Magnetic Properties: Some variants include magnetic tips to capture metal shavings in oil systems.

2. Common Applications

• Automotive Oil Drain Plugs – Used in engine oil pans, differentials, and transmissions.

• Máquinas industriais – Hydraulic systems, gearboxes, and pump housings.

• Heavy Equipment – Tractors, excavators, and diesel engines.

• Marine & Agricultural Machinery – Where moderate corrosion resistance is sufficient.

3. Maintenance & Considerations

• Torque Properly – Over-tightening can strip threads; use a torque wrench.

• Replace Washers – Crush washers should be replaced after each removal.

• Check for Rust – If uncoated, carbon steel can corrode in wet conditions.

• Thread Compatibility – Ensure correct size (e.g., M12x1.75 for many Japanese cars).

Conclusion

Carbon steel oil plug bolt are strong, economical, and widely used in automotive and industrial applications. While they require protective coatings to resist rust, their durability and affordability make them a popular choice for oil drain and fluid system sealing.