Our Heritage & Expertise

StainGrip is the specialized stainless steel division of JZ Fastener (www.jzfastener.com). Since our establishment in 2010, we have operated as a reliable manufacturer in the global fastening industry. For over 15 years, JZ Fastener has supplied precision-engineered self-drilling and wood screws for large-scale infrastructure and residential projects worldwide.

To meet the technical requirements of modern architecture and heavy-duty industrial construction, JZ Fastener expanded its operations with the StainGrip production line. We focus exclusively on high-performance stainless steel screws designed for corrosive environments, coastal regions, and high-stress applications where standard carbon steel fasteners are insufficient.

Our manufacturing facility in Jiangsu, China, is an ISO 9001 certified factory. This certification reflects our standardized quality management system, covering everything from raw material sourcing to final batch testing. By utilizing advanced metallurgy and precision manufacturing technology, we ensure that every StainGrip fastener meets or exceeds international quality benchmarks.

8000+

16

Years of experience

Tons Annual Capacity

Why Customer Choose Us

From advanced metallurgy to rigorous testing, see why StainGrip defines industrial reliability.

International Standards

All StainGrip™ fasteners are engineered and manufactured to meet the most stringent global standards, including ASTM F593 (USA) and AS3566.1-2002 (Australia). We ensure your projects stay compliant and secure.

Located in China’s premier stainless steel industrial zone, our ISO 9001 accredited facilities utilize 20 years of manufacturing expertise to produce high-precision Bi-metal and Marine Grade stainless screws.

Every batch undergoes comprehensive laboratory testing. We provide verified data on Salt Spay Test, Ultimate Pull-out Load, Torsional Strength, and Shear Strength to ensure performance in the harshest environments.

Advanced Manufacturing

Rigorous Testing

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