Socket capscrews, also known as socket head cap screws or socket cap bolts, are a type of fastener used in various applications. Here are some key characteristics of socket capscrews:

• • Head Style: Socket capscrews have a cylindrical head with a flat top and a recessed hexagonal socket (usually Allen or hex key driven). This design allows for a low-profile appearance and provides a secure grip for the tightening tool.
  • Drive Type: The recessed socket allows for a more efficient transfer of torque during tightening or loosening. Common drives include hex (Allen), Torx, and others.
  • Material: Socket capscrews are available in various materials, including steel, stainless steel, and alloy steel. The choice of material depends on the application and the environmental conditions.
  • Thread Type: They come with various thread types, such as coarse threads or fine threads, depending on the specific requirements of the application.
  • Size and Length: Available in different sizes and lengths, socket capscrews can be selected based on the specific needs of the project or assembly.
  • Application: Socket capscrews are used in a wide range of industries, including machinery, automotive, construction, and electronics. They are often chosen when a low-profile head and high-strength fastening are required.
  • Strength Class: Socket capscrews are graded based on their tensile strength. Common strength classes include 8.8, 10.9, and 12.9. The numbers represent the minimum tensile strength in megapascals (MPa).
  • Finish: They can have various finishes such as plain, zinc-plated, or coated for corrosion resistance.

When using socket capscrews, it’s essential to choose the right size, length, material, and strength class for the specific application to ensure proper and secure fastening.