How Does Kunshan Hong Yongsheng Machine and Inspect Precision Aluminum Screws on CNC Sliding Head Lathes?

An aluminum screw is easy to overlook, yet in a lightweight device it often decides whether an assembly goes together cleanly. The metal is soft compared with steel, the parts are small, and the threads have to be cut accurately enough that the screw seats without stripping. Making these parts consistently is mostly a matter of using the right machine and checking the result carefully, which is exactly what the production line at Kunshan Hong Yongsheng Precision Hardware Products Co., Ltd. is set up to do.

Why Aluminum Screws Are Used in Lightweight and Electronic Assemblies

Aluminum is roughly one third the density of steel, so a screw made from it adds very little weight to an assembly. That makes it a practical choice wherever the total mass of a product matters, and the metal brings several other useful properties as well.

• Low weight, which helps in portable and handheld equipment
• Natural resistance to corrosion in many indoor and outdoor environments
• Non-magnetic behavior, useful near sensors and electronic components
• Good thermal conductivity, which suits heat sinks and lighting housings

Because aluminum is softer than steel, the thread form and the surface condition need extra care. A well-cut thread spreads the load evenly, while a rough one can wear or strip during tightening.

CNC Sliding Head Lathes Machine Small Screws in One Setup

The video opens on the workshop floor, where rows of CNC sliding head lathes, also called Swiss-type or walking-head lathes, run side by side. Each machine has its own shelving with trays for finished parts, and operators move between machines to check output and adjust settings.

A sliding head lathe feeds the bar stock through a guide bushing, so the material is supported very close to the cutting tool. This reduces deflection on small, slender parts and allows turning, drilling, threading, and cutoff to be completed in a single setup. For small aluminum screws, that means:

• Stable diameters from the first piece to the last in a long run
• Heads, shanks, and threads machined together, with good concentricity
• High output suited to volume orders of small precision parts

Dimensional Checks With Micrometer and Dial Caliper

Once parts come off the machine, they are measured by hand at the bench. The video shows an inspector holding a screw in a micrometer to read the shank diameter, then using a dial caliper to check length and head dimensions, with the parts sitting in a yellow collection tray beside the machine.

Checking at the machine, rather than only at the end of the line, means a drifting dimension is caught early. If a reading moves toward the tolerance limit, the operator adjusts the tool offset before more parts are cut, which keeps the whole batch inside the drawing requirement.

Finished Aluminum Screws Ready for Assembly

The final scene shows the finished parts laid out on a white surface: small, bright silver screws, some of them fitted with washers. The surfaces are clean and uniform, with sharp thread starts and no visible burrs. Parts at this stage have been deburred and cleaned so they can go straight into the customer's assembly line without extra preparation.

Equipment and Quality System Behind the Process

The screws in the video are made inside a 10,000-square-meter workshop, built with an investment of more than 30 million yuan. Kunshan Hong Yongsheng employs more than 50 people, over 70% of whom have more than ten years of production experience, and the plant runs CNC lathes imported from Japan alongside domestic machines, high-precision Taiwanese CAM walking-blade automatic lathes, more than 60 sets of auxiliary equipment, and over 100 testing instruments.

Production runs under a quality management system certified to ISO9001:2015 and IATF16949:2016, so the aluminum screws are made and recorded to the same standard as the company's automotive-grade fastener lines.

Why Global Buyers Choose Kunshan Hong Yongsheng

Kunshan Hong Yongsheng has been making precision hardware since 2006 and supplies customers in electronics, automation, communication equipment, medical instruments, and automotive manufacturing, including well-known international brands. With an annual capacity of more than 40 million products and a location about 56 kilometers from Shanghai port and 66 kilometers from Taicang port, the company ships standard and custom parts to overseas customers efficiently.

Buyers looking for aluminum screws, or other small precision parts machined to drawing, are welcome to send their specifications and request samples to confirm material, tolerance, and surface finish before placing a production order.