Cup Head Step Shear 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.

O Cup Head Stepped Shear Bolt is a specialized fastener designed for applications where controlled shearing and secure fastening are required. Here’s an overall description of its key features:

1. Design & Structure:

• Cup Head: Features a rounded, dome-shaped head that provides a smooth finish and aesthetic appeal while allowing for tool engagement (typically a wrench or socket).

• Stepped Shank: The bolt has a reduced-diameter section (step) near the head or along the shank, which acts as a predetermined shear point. This ensures the bolt breaks at a specific load, preventing damage to other components.

• Cup Head Step Shear Bolt

• Threaded Portion: The lower part of the shank is threaded to engage with a nut or tapped hole, ensuring a secure hold.

2. Material:

• Typically made from high-strength steel (grade 5 or 8) or aço inoxidável for corrosion resistance.

• May feature coatings like zinc plating ou hot-dip galvanizing for enhanced durability.

3. Function & Applications:

• Função de cisalhamento: The stepped section is designed to shear off under a specific torque or load, acting as a mechanical fuse to protect machinery from overload.

• Common Uses:

  • Automóvel (suspension systems, drivetrain components)

  • Cup Head Step Shear Bolt

  • Aeroespacial (engine mounts, structural assemblies)

  • Máquinas industriais (safety-critical bolted joints)

  • Railway & Construction (where controlled failure is necessary)

4. Advantages:

• Controlled Failure: Prevents damage to expensive components by shearing at a set load.

• Secure Fastening: The cup head provides a strong clamping force before shearing.

5. Standards & Specifications:

• May conform to ISO, DIN, SAE, or ASTM standards depending on application.

• Available in various diameters (e.g., M6, M10, ½”) and lengths.

• Cup Head Step Shear Bolt

6. Installation & Removal:

• Installed using standard tools (wrench/socket).