News and Events

This official news from Gangtong Zheli Fastener introduces our company’s development strength, product lines, quality management and global service capabilities. With over 15 years of professional experience in the fastener industry, we are a leading manufacturer and exporter based in Ningbo, China, integrating R&D, production, quality inspection and global distribution. Our product range covers hex bolts, nuts, screws, washers, anchor bolts and customized non-standard fasteners, all compliant with ISO, DIN, ANSI and other international standards. Equipped with advanced production and testing equipment, we implement full-process quality control and have obtained ISO 9001, CE and RoHS certifications. We serve clients across more than 80 countries, supplying high-quality fasteners for construction, automotive, new energy, heavy machinery and other industries. Adhering to the principles of experience, expertise, authoritativeness and trustworthiness, we provide OEM, ODM and one-stop custo

Gangtong Zheli Fasteners, a trusted industrial fastener manufacturer and global exporter, officially launches a full‑scope green manufacturing and sustainability initiative. This long‑term strategic program covers energy saving, emission reduction, waste recycling, eco‑friendly surface treatment, responsible material sourcing and low‑carbon logistics. By integrating environmental protection into production, management and supply chain operations, the company strengthens its Experience, Expertise, Authoritativeness and Trustworthiness (EEAT) while providing global customers with reliable, compliant and low‑carbon industrial fasteners, including bolts, nuts, screws, washers and custom fastening solutions.

Gangtong Zheli Fasteners, a trusted manufacturer and exporter of industrial fasteners across global markets, announces the comprehensive upgrade and expansion of its professional quality testing laboratory. This initiative optimizes testing equipment, enriches inspection items and standardizes full-process quality control workflows. By reinforcing scientific detection capabilities and strict compliance with international standards, the company further solidifies its Experience, Expertise, Authoritativeness and Trustworthiness (EEAT), delivering more dependable bolts, nuts, screws, washers and custom fasteners to worldwide industrial clients.

Technical guide to DIN 934 hex nuts. Learn specifications, grade matching, coatings, and assembly troubleshooting to prevent joint failure.

GTZL Fastener is a professional manufacturer and exporter of industrial fasteners, standard fasteners, non‑standard fasteners and custom fastening components. With rich export experience, certified quality systems and a global customer base, the company specializes in providing stable, high‑quality fastening solutions for automotive, construction, machinery, energy, railway, marine and furniture industries. Committed to EEAT principles, GTZL Fastener prioritizes quality, reliability, transparency and customer success in every order.