Since 2016, we have successively provided DIN557 hot-dip galvanized square nuts for Bangladesh Army factories, which are mainly used in power system. In 2017, we were honored to visit the customer's factory, which laid a solid foundation for future cooperation.
Metric DIN 557 regular pattern square nuts are four sided nuts. Their geometry provides a greater surface area to apply higher torque when tightening and also a greater surface are in contact with the part being fastened, thereby increasing the resistance to loosening.
