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Short updates from our company.
From July to August 2026, the EU once again adjusted its anti-dumping measures targeting certain steel fasteners from China. This involves product scope, TARIC codes, and the treatment of certain exporting producers. For fastener exporters and European importers, product classification, material, standards, and customs declaration information are becoming increasingly important.
The strength grade of a nut determines the proof load it can withstand and its thread load-bearing capacity. Common metric nut grades include 4, 5, 6, 8, 10, and 12. Correctly matching bolt and nut grades can reduce issues such as thread stripping, thread failure, and loosening of connections.
Expansion bolts are widely used in concrete structures, steel installation, equipment fixing, and construction. Correct drill hole diameter, depth, hole cleaning, and tightening torque directly affect anchoring performance. This article introduces the basic installation steps and common precautions for expansion bolts.
Both bolts can have a square neck, but their head profile, contact area and seating differ. Specify the head, neck, hole and length datum in the RFQ.
A serrated flange bites into the mating face, while a plain flange provides a continuous bearing surface. Review coating, material, service and validation before selecting one.