Overview
Socket head cap screws are precision-engineered fasteners designed to provide strong, reliable fastening in applications requiring high tensile strength and compact assembly. Characterized by their cylindrical head and hexagonal drive recess, socket head cap screws allow for installation in tight spaces where traditional wrench access is limited. Manufactured from high-grade alloy steels, stainless steel, or other corrosion-resistant materials, these screws undergo rigorous heat treatment and finishing processes to ensure durability and resistance to wear. The design of the socket head cap screw facilitates high torque application without damaging the fastener, making it suitable for critical mechanical assemblies. Their smooth, cylindrical head profile also contributes to a clean, flush finish, which is essential in precision machinery and equipment.
Widely used across industries such as automotive, aerospace, electronics, and industrial machinery, socket head cap screws offer exceptional performance in both static and dynamic load conditions. Their ability to maintain clamping force under vibration and thermal cycling enhances the reliability of assembled components. The availability of various thread sizes, lengths, and materials allows for customization to meet specific engineering requirements. Additionally, socket head cap screws provide advantages in assembly efficiency and maintenance, as their hex drive enables easy tightening and removal using Allen wrenches or hex keys. This combination of strength, versatility, and ease of use makes the socket head cap screw a preferred choice for engineers seeking dependable fastening solutions in demanding environments.
| Product Type | Socket Head Cap Screw |
| Head Style | Cylindrical Socket Head |
| Manufacturing Process | Cold Forged and Machined |
| Thread Type | Unified National Coarse (UNC) or Unified National Fine (UNF) |
| Common Materials | Alloy Steel, Stainless Steel, Carbon Steel |
| Available Sizes | #0 to 1 inch diameter, lengths from 1/4 inch to 6 inches |
| Strength Features | High tensile strength, heat treated for durability |
| Typical Applications | Machinery assembly, automotive, aerospace, tooling |
| Surface Finishes | Zinc plated, black oxide, stainless finish, phosphate coated |
| Standards | ASME B18.3, ISO 4762, DIN 912 |
| Customization | Custom Sizes, Materials, Threads & Surface Finishes Available |
Designed to withstand high torque loads, ensuring secure fastening in demanding mechanical and structural applications.
The small, cylindrical head allows installation in tight spaces where traditional bolts cannot fit.
Available in stainless steel and coated finishes to resist rust and environmental degradation.
Manufactured with accurate thread profiles for smooth assembly and strong holding power.
Suitable for automotive, aerospace, electronics, and industrial machinery fastening needs.
Meets international standards for quality, strength, and dimensional accuracy ensuring reliability.
| Product Type | Socket Head Cap Screw |
| Thread Type | Metric and Unified |
| Diameter Range | M3 to M36 |
| Length Range | 6 mm to 150 mm |
| Available Materials | Stainless Steel, Carbon Steel, Alloy Steel |
| Manufacturing Standards | ASTM F835, DIN 912, ISO 4762, ASME B18.3 |
| Surface Finish | Plain, Zinc Plated, Black Oxide |
| Diameter (mm) | Length (mm) | Head Diameter (mm) | Head Height (mm) |
|---|---|---|---|
| M3 | 6–30 | 5.5 | 2.4 |
| M6 | 10–80 | 10 | 5 |
| M12 | 20–150 | 18 | 10 |
| M24 | 50–150 | 36 | 20 |
