Socket head cap screws feature a head with no exposed edges, offering a compact design that can be countersunk or passed through pre-drilled holes in the connected components. The hexagon socket provides a larger contact surface with the wrench, enabling it to withstand greater tightening torque than cross-recess or slotted screws, resulting in a more secure connection. Once installed, the head of an internal socket head cap screw sits flush or is fully countersunk within the workpiece, resulting in a more aesthetically pleasing and tidy appearance.
Classification of Internal socket head cap screw
By material, they are categorised as carbon steel, alloy steel, stainless steel, etc.
By strength grade, they are classified as Grade 8.8, Grade 10.9, Grade 12.9, with higher numbers indicating greater strength and hardness.

Product Details

Standard Head

Head dimensions strictly adhere to national standard tolerances, ensuring even force distribution, smooth inner and outer surfaces, and user-friendly operation.

Clear Threads

Manufactured strictly to specifications with uniform pitch and distinct thread profiles. All threads pass go/no-go gauges, effectively preventing stripped threads.

Stainless Steel Material

Utilizes premium 304 grade material with superior rust resistance. High-temperature treatment enhances screw strength, delivering a high load-to-weight ratio.

Stability and Reliability

Hex socket design ensures efficient torque transfer. Post-installation, the head forms a tight fit with contact surfaces, minimizing loosening and vibration-induced failure. Particularly suitable for vibrating environments.