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.
Hexagon socket black zinc plated(also known as a black galvanized hex socket screw ou black zinc Allen bolt) is a type of fastener with a hexagonal recess (internal drive) and a black galvanized coating for corrosion resistance and aesthetics. Below is a detailed description:
1. Material & Construction
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Base Metal: Typically made from carbon steel, alloy steel, or stainless steel for strength.
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Black Galvanized Coating: Achieved through zinc plating with a black chromate or black oxide finish, providing corrosion resistance and a dark, matte-black appearance.
2. Common Applications
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Machinery & Automotive: Used in engines, transmissions, and structural assemblies where a clean, corrosion-resistant fastener is needed.
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Electronics & Appliances: Provides a secure, low-profile fastening solution.
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Furniture & Construction: Offers a discreet yet durable fastening method.
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Hexagon socket black zinc plated
3. Advantages Over Standard Screws
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Higher Torque Capacity: The internal hex design allows for greater tightening force without stripping.
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Space-Saving: No protruding head, making it ideal for tight spaces.
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Enhanced Durability: Black galvanized coating resists moisture, chemicals, and wear better than plain steel.
4. Maintenance & Considerations
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Avoid Over-Tightening: The hex socket can strip if excessive force is applied.
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Limited Reusability: The black coating may wear off if frequently removed/reinstalled.
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Compatibility: Ensure correct thread size, pitch, and socket size (e.g., 4mm Allen key for M6 screw).
Conclusion
Black galvanized inner hexagon screws are a durable, corrosion-resistant, and visually appealing fastening solution, widely used in industries where both function and aesthetics matter. They are particularly favored in automotive, machinery, and high-end consumer products due to their strength and sleek appearance.
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