Industrial Cold-Formed Square Lock Nut | THREAD Fastener Manufacturer

High-strength cold-formed Square Lock Nuts manufactured by THREAD for industrial and automotive applications.

Square Lock Nut

Industrial Cold-Formed Square Lock Nut | THREAD Fastener Manufacturer

THREAD INDUSTRIAL CO., LTD. manufactures high-quality Square Lock Nuts using advanced cold-forming technology. These fasteners are engineered from premium carbon steels to ensure exceptional durability and reliable performance in demanding environments. Ideal for a wide range of industrial and automotive applications, our Square Lock Nuts provide a secure and vibration-resistant fastening solution. We offer a comprehensive range of sizes, produced in our IATF 16949 certified facilities in both Taiwan and Vietnam, ensuring a flexible and resilient supply chain for our global partners.

Precision-Engineered Square Lock Nuts

The Square Lock Nut from THREAD INDUSTRIAL CO., LTD. is a specialized fastener designed for applications requiring high resistance to loosening under vibration and torque. Manufactured through a precision cold-forming process, these nuts exhibit superior strength, dimensional accuracy, and material integrity compared to standard machined nuts. Our commitment to quality ensures each nut meets rigorous industry standards for performance and reliability.

Key Features & Benefits

  • Manufacturing Process: Advanced cold-forming for enhanced strength and durability.
  • Material: Constructed from various high-grade carbon steels to meet diverse application requirements.
  • Secure Fastening: The square design provides a large contact surface, offering excellent resistance to rotation and loosening.
  • Wide Application: Suitable for heavy-duty industrial machinery, automotive assemblies, structural steel, and electrical equipment.
  • Dual-Source Production: Manufactured in our state-of-the-art facilities in both Taiwan and Vietnam to ensure supply chain stability.

Manufacturing Size Capabilities

We offer a wide range of metric and imperial sizes to accommodate your specific project needs, produced at our two strategic locations:

Production Facility & Size Range
Taiwan FactoryM6 - M33 / 1/4" - 1 1/4"
Vietnam FactoryM5 - M27 / 1/4" - 1"

Quality Assurance

As an IATF 16949 and ISO 9001 certified manufacturer, THREAD INDUSTRIAL CO., LTD. adheres to the strictest quality control protocols. Our in-house, ISO/IEC 17025 accredited laboratory conducts comprehensive testing to guarantee that every Square Lock Nut we produce meets or exceeds international standards, providing our customers with fasteners they can trust.


Square Lock Nut Precision Cold-Formed Fastener

THREAD Industrial manufactures Square Lock Nut for automotive, industrial equipment, construction, infrastructure, and machinery applications, with production support from Taiwan and Vietnam.

Product requirements can include international standards, customer drawings, metric or imperial sizes, carbon or alloy steel, defined strength classes, and application-specific surface treatment.

IATF 16949 and ISO 9001 systems, accredited laboratory testing, controlled production, and optical sorting help buyers source consistent fasteners for quality-critical and repeat-order programs.