News and Events

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.

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

A technical guide to ASME B18.2.2 inch hex nuts. Learn about critical dimensions, SAE material grades, coating tolerances, and RFQ sourcing.

This news focuses on our factory’s recent upgrade of fastener surface treatment technology. With years of manufacturing experience, strict process control and compliance with international environmental standards, we have greatly improved the anti‑corrosion and salt‑spray resistance of bolts, nuts and other fasteners, making them more suitable for marine, coastal and petrochemical harsh‑environment projects, and providing higher‑quality products and solutions for global customers.

An engineering guide to ISO 4032 hex nuts. Learn differences from DIN 934, property classes, coatings, and procurement tips to avoid assembly failures.