News and Events

This article solves the core foreign trade pain point of arbitrary replacement of coarse and fine thread bolts. It systematically compares structural strength, vibration resistance, locking accuracy, assembly performance and environmental adaptability, breaks the misunderstanding that "fine thread is better", and clarifies the exclusive working condition boundaries of the two thread types, providing standardized selection guidelines for overseas mechanical and engineering projects.

This article focuses on the high-frequency wrong selection problem of lock nuts in overseas machinery and construction machinery projects. It compares the structural principle, high-temperature resistance, vibration fatigue resistance and service life of nylon insert lock nuts and all-metal stainless steel lock nuts, summarizes typical working condition pitfalls, and provides clear and actionable anti-loosening nut selection standards for high-temperature, strong vibration and conventional static scenarios.

Nylon vs all-metal lock nuts: compare temperature limits, vibration resistance, and reusability to choose the right fastener for safe joints.

This article targets the selection confusion of heavy-duty anti-corrosion fasteners for overseas wind power, bridge and heavy engineering projects. It systematically compares Dacromet and hot-dip galvanized processes in terms of process principle, hydrogen embrittlement risk, high-temperature resistance, salt spray life, assembly accuracy and project cost performance, summarizes procurement pitfalls and accurate scenario matching standards, and provides professional high-end process selection guidelines for global heavy industry fastener procurement.

This article focuses on the most serious assembly errors in foreign trade fastener procurement: metric and inch standard mixing and thread mismatch. It systematically explains the essential differences in calibration system, thread pitch and size tolerance between metric and inch fasteners, summarizes high-frequency assembly pitfalls and overseas regional standard rules, and provides practical identification and procurement specifications for overseas engineering project fastener matching.