Cylindrical Head

Socket Head Cap Screws: Socket head cap screws are a staple in countless industries, prized for their versatility and strength. Whether you're securing machinery components or assembling precision equipment, our socket head cap screws provide the steadfast reliability you demand. It has a hexagonal socket and a cylindrical barrel-shaped head, and its head diameter is roughly 1.5 times larger than the nominal thread diameter.

It's widely applicable in assembly lines and industrial production, including furniture manufacturing, the automotive sector, steel fabrication, and machine tooling applications. The screws are easy to install, tighten, or loosen. They also offer robust clamping strengths that last for years and retain an impressive and tidy finish.

Socket head cap screws are manufactured to various specifications and standards to ensure their quality, compatibility, and performance in different applications. Some of the key specifications and standards include:

  1. ASME B18.3: This standard, published by the American Society of Mechanical Engineers (ASME), provides dimensional and performance requirements for socket head cap screws. It covers details such as thread size, thread pitch, head dimensions, and material properties.
  2. ISO 4762: This is the International Organization for Standardization (ISO) standard for hexagon socket head cap screws. It specifies dimensions, tolerances, and technical requirements for these fasteners, ensuring interchangeability and compatibility across different manufacturers.
  3. ASTM F837: ASTM International publishes this standard, which covers the requirements for stainless steel socket head cap screws. It specifies the chemical composition, mechanical properties, and other relevant characteristics of stainless steel screws suitable for use in corrosive environments.
  4. DIN 912: This is the German Institute for Standardization (DIN) standard for socket head cap screws. It provides detailed specifications for dimensions, tolerances, and material requirements, widely used in European markets.
  5. ANSI/ASME B18.3.1M: This standard, similar to ASME B18.3, specifies metric dimensions and requirements for metric socket head cap screws. It ensures compatibility and interchangeability of metric fasteners across different manufacturers.
  6. Military Specifications (Mil-Spec): Certain socket head cap screws may be manufactured to military specifications such as MIL-DTL-1222 (formerly MIL-S-1222) for general-purpose screws or MIL-DTL-1222G for specific military applications. These specifications outline requirements for materials, manufacturing processes, and performance characteristics.
  7. Customer-specific Requirements: In addition to industry standards, socket head cap screws may also be manufactured to meet specific requirements specified by customers, particularly in specialized applications or industries with unique demands.