Self clinching nuts play a pivotal role in today's industrial production. Pressure riveting screws are divided into free-cutting steel pressure riveting screws, stainless steel pressure riveting screws and copper and aluminum pressure riveting screws in terms of raw materials, which should be used in different environments. Standards are usually used mostly from M2 to M6. There is no unified national standard for pressure riveting screws, only professional standards. Commonly used in electronics, communications, electrical appliances, chassis, cabinets, sheet metal and other industries. The quality of the product must not be careless and must be inspected strictly in accordance with the corresponding standards. So what are the inspection standards for rivet nuts?

First of all, the PEM rivet nut is also the evolution of the national standard rivet screw, and the specific inspection items must be determined according to the national standard rivet screw surface defect specification. For details, please refer to the corresponding national standard. If the surface coating and plating affect the surface defect If identified, they should be removed before the inspection.
Secondly, according to the requirements of the design drawings), the external dimensions of the PEM rivet nuts, self clinching fasteners and raw materials should be inspected. This should pay attention to the inspection of raw materials. First, raw material manufacturers should provide raw material