News and Events

Aiming at the foreign trade procurement pain point of frequent mixing of ordinary hex bolts and flange bolts, this article analyzes the structural differences between the two fasteners, and compares their pressure resistance, anti-indentation performance, assembly efficiency and vibration resistance. It clarifies the exclusive application boundaries of flange bolts in high-pressure pipelines, precision equipment and vibration working conditions, and summarizes common selection pitfalls, providing accurate and actionable fastening selection guidelines for overseas mechanical and pipeline engineering projects.

Which way does a lock nut go on? Flat metal side threads on first, nylon ring faces outward. Avoid cross-threading and vibration loosening.

This article focuses on the common foreign trade procurement pitfall of blindly using full stainless steel bolts leading to cost waste. It compares carbon steel and stainless steel bolts in terms of structural strength, corrosion resistance, vibration fatigue resistance and procurement cost, clarifies the respective exclusive working condition boundaries of the two materials, and puts forward a differentiated mixed matching optimization scheme for overseas projects, providing professional cost-performance selection guidelines for engineering fastening procurement.

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.