Quality Technology

TSLG Self-Locking Technology

When external and internal threaded parts (i.e. bolts and nuts) are joined together at their tightened position, a clamping force will be created  to hold them together. But this clamping force will be worn off by factors such as motion, vibration, shock, and temperature...etc. When the clamping force  decreases to 0,  the fasteners will loose and fall apart. TSLG’s NYLOK Blue Patch is the pre-applied self-locking solution that can enhance the locking ability of fasteners and reduce the occurrence of loosen and falling fasteners. NYLOK Blue Patch has been widely used and recognized worldwide. 

TSLG also provide chemical adhesive self-locking solutions from Precote, 3M, and Loctite, including microencapsulated adhesive  and non-reactive chemical adhesive. When the external and internal threaded fasteners are locked together, the microcapsules will be squeezed and ruptured , and the mixture of the chemicals will generate strong adhesion  effect. Our processing technology has been honored by several kinds of patents. Fasteners with TSLG products not only can meet the international specifications such as IFI and DIN but also comply with major environmental regulations.

TSLG is the expert for self-locking technology and a trustworthy partner for self-locking solutions. We look forward to providing our expertise and service for any self-locking technology inquiries.

Quality Certification


TSLG follows the requirments of total quality management (TQM) to ensure and improve our manufacturing quality. Each TSLG plant receives professional audits by internal and external resources on regular basis. TSLG follows the practice of PDCA cycles for consistent improvement and execution of all quality control standards. Listed below are the quality certifications for each TSLG plant:Please enter details

Laboratory Equipment

To ensure the qualtiy of our products and to provide quality inspection service to customers, TSLG established professional quality assurance center with various advanced and precision inspection equipments in each plant, and we also built the most advanced laboratory in this industry. Our inspection equipment includes:Please enter details

Environmental Protection Policy

Maintaining the health of Earth, Fulfilling the Corporate Social Responsibility.

TSLG Environmental Management System

To prevent pollution and to make sure our products meet the required quality and performance, TSLG evaluates the environmental impact of our material selections as well as our research & development, manufacturing, and packing processes, and then standardizes the usage of the green product and green processing to protect Mother Earth. Meanwhile, we plan and increase the efficiency of energy usage, reduce energy pollution, and produce the best products with less energy consumption. In addition, we emphasize on the practice of reduction, recycle, and reuse by implementing waste reduction, categorization, and recycling. We hope to make the best out of the least resources and become a contributing member in protecting our environment.

Fulfilling Corporate Social Responsibility

Build up the environmental management system based on the practice of "Plan, Do, Check, Action" cycle, which includes organizational structure, operation planning, responsibility, practice, process, and resource. With this system, we seek continuous improvement by implementing related law/regulations. By doing so, we make sure to meet all the requirement of environmental law and regulations and fulfill our corporate social responsibility.