Hex Head Cap Screws Components Overview

Precision CNC Machined Hexagonal Brass Screw

The component is crafted from H59 brass material and precision-machined into a hexagonal screw using advanced CNC Turning technology. The tip features a standard hexagonal head for effortless tool engagement, while an annular flange located beneath the head increases the load-bearing surface, prevents deformation under pressure, and enhances sealing performance. A short external thread, starting with a chamfered lead-in, makes this screw ideal for sealing applications such as oil hole plugs and vent plugs, as well as light-duty fastening requirements.

Manufacturing Process Overview

1. Material Preparation: The process begins with precise cutting of H59 brass rods to the required length based on the screw specifications, following strict precision manufacturing standards.
2. CNC Turning Operation: The part undergoes full machining via high-precision CNC turning. First, the outer contour and hexagonal head blank are shaped. Then, a forming tool is used to machine the flange surface and finalize the hexagonal head geometry. Finally, the external thread is rolled or turned with exceptional accuracy. All dimensions, thread profiles, and tolerances are tightly controlled through automated CNC programming.
3. Post-Processing & Quality Assurance: After machining, burrs are removed through deburring processes. The screws are then cleaned using ultrasonic cleaning to eliminate residual oils and copper residues. Leveraging years of expertise in CNC turning, we ensure superior coaxiality, consistent thread alignment, and stable dimensional accuracy—guaranteeing reliable interchangeability and robust assembly performance.

About Dongguan Shengpeng Precision Technology Co., Ltd.

Dongguan Shengpeng Precision Technology Co., Ltd. is a professional manufacturer specializing in high-precision components. With a mature and fully integrated CNC turning system, we offer comprehensive Precision CNC Turning Services tailored to individual customization needs. Our capabilities include:

• Custom size specifications and thread standards (metric, imperial, non-standard threads)
• Adjustable screw head designs based on device models and connection requirements
• Material substitution options: bronze, stainless steel, carbon steel, and more
• Customized surface treatments: nickel plating, zinc coating, passivation, veneering, and other finishes

We are committed to delivering innovative, reliable, and fully customizable solutions that meet diverse customer demands in product design and engineering applications.