Production Process & Quality Control Standards of High Precision Small Screws

In electronics, precision instruments and smart devices, the dimensional accuracy and mechanical properties of small screws greatly affect assembly effect and service life. smallscrew optimizes manufacturing procedures and establishes complete quality control systems to deliver qualified micro fasteners.

1. Premium Raw Materials for Solid Quality

We adopt high-quality stainless steel, carbon steel and alloy steel as raw materials. Raw materials are sampled and tested for composition, hardness and ductility before warehousing to keep consistent product performance.

2. Sophisticated Machining for High Dimensional Accuracy

Professional cold heading, thread rolling and chamfering equipment are used for screws from M0.8 to M3. Automatic production reduces manual errors. Key dimensions are strictly controlled to meet international standards, ensuring smooth assembly.

3. Various Surface Treatments for Better Performance

We provide galvanizing, nickel plating, black oxide and passivation treatments to improve rust resistance, corrosion resistance and wear resistance. The coating is controlled evenly without affecting thread matching for long-term service.

4. Comprehensive Finished Product Inspection

All finished screws go through appearance check, dimension re-measurement, torque test and salt spray test to remove defective products. Batch records are kept for full traceability.

5. Custom & Supporting Services

We support custom non-standard screws according to drawings and samples. Custom packaging and mixed specifications are available. Both small and bulk orders are accepted to meet diverse procurement demands.