Industry News

When engineers and procurement specialists specify fasteners for heavy-duty applications, one of the most frequent points of confusion involves two seemingly similar German standards: DIN 975 Threaded Rod and DIN 976. While both are continuously threaded bars used with nuts and washers, their critic......

Proper bolt torque is not a number pulled from a chart—it is a calculated engineering decision. For any Carbon Steel High Pressure Flange, incorrect torque leads to gasket leakage, bolt fatigue, or flange face damage. This guide provides the torque calculation methodology, practical tables, and answ......

​In modern construction and industrial installation, stability, safety, and long-term durability are always the top priorities. Among various fastening technologies, the Chemical Anchor has emerged as one of the most reliable solutions for securing heavy loads into concrete, masonry, and stone subst......

Selecting the correct Pneumatic Bits for Screwdriver is not a one-size-fits-all decision. In high-volume assembly lines, automotive repair shops, and aerospace manufacturing, the wrong bit can strip screws, damage workpieces, or halt production entirely. The two most critical technical factors—hardn......

When maintenance crews disassemble bolted joints, the question always surfaces: should they discard the used DIN127 Spring Lock Washer or simply put it back in service? At Gangtong Zheli, we receive this inquiry weekly from field engineers and quality inspectors. The short answer is technically yes,......

​In today's industrial manufacturing and engineering sectors, components such as Body Casing and Fittings play a critical role in ensuring system stability, operational safety, and long-term performance. Whether used in machinery, hydraulic systems, pipeline structures, or mechanical assemblies, the......