I. Fixing of stainless steel screwsIn short, this means that stainless steel screws can be applied to the raw materials of the product, which will make the stainless steel screws not easy to fall. Screws must be securely connected to the raw material of the product. There are always two solutions fo

In daily life, when we are loading screws and nuts, the nut loose phenomenon is often a thing, and we sometimes see a lot of bolts will be used with two nuts, so whether it can prevent the bolt loose? Yes, the following China Standard parts network will provide the prevention of loose - double nut f

Anchor bolt are commonly known as metal anchor bolt. The fixing principle of anchor bolt is to use the wedge Angle to promote the expansion to produce friction gripping force to achieve a fixed effect. Generally speaking, after the anchor bolt is hit into the hole on the ground or wall, the wrench i

01 Advantages of cold headingHigh utilization rate of steel: cold heading (extrusion) is a kind of less, no cutting processing method, such as processing rods hex head bolts, cylindrical head hex screws, using the cutting method, steel utilization rate is only 25% ~ 35%, and with cold heading (extru

Countersunk head screw is also known as flat machine screw, flat head screw, its head is a 90 degree cone, the mounting hole surface on the connector is also processed with a 90 degree cone socket, so as to ensure that the screw head and connector surface parallel, for the surface can allow a little

Without surface treatment: At present, among stainless steel fasteners, according to our experience, taking 304 products as an example, without any surface treatment, the general salt spray test time for stainless steel screws is 48 hours, and the nut is 96 hours. However, affected by the rough surf