High-quality, premium screw and nut manufacturing facility

Quality Assurance

Quality Control Process

The company prioritizes product quality, emphasizing the selection of Grade A raw material suppliers with standard certifications, including Mill Certificates. Systematic inspections are integral to the production process, with raw materials undergoing scrutiny before production begins. Each stage of production, from head forging and thread rolling to plating and screw sorting, is meticulously inspected. Every process is documented with verifiable numbers. Furthermore, each product batch is subjected to rigorous testing for dimensions, hardness, torque, chemical composition, and other critical parameters. This stringent quality control enables the company to provide customers with a suite of quality assurance documents, such as Material Certificates, Inspection Data, PPAP III, RoHS II, Salt Spray Tests, and Hydrogen Embrittlement Tests.

QC Facilities & Instruments

Why Choose Us

Vattanaporn Screw(1991) Co., LTD. stands as a premier manufacturer of nuts and screws in Thailand, delivering products of global quality standards.
Our dedication to ongoing improvement in quality and technology, coupled with meticulous attention to detail, ensures that we fulfill our customers' requirements with superior products, delivered promptly within the desired time frame.

High quality, Fast shooting, Stable, and Accurate.

Strict quality control

Fair price