In the fastener industry, you may have heard of washers more or less, but what is the purpose of washers? What types of washers are there? Let’s take a look at the Haian washer manufacturer!

Washer use

The spring washer is installed under the nut to prevent the nut from loosening. Hexagonal slotted nuts are designed for use with bolts with holes at the end of the screw, so that the split pin can be inserted into the hole of the screw from the slot of the nut to prevent the nut from loosening automatically. It is mainly used in occasions with vibration load or alternating load. .

Methods to prevent the automatic loosening of nuts (or bolts) in mechanical design and production include:

1. Padded spring washer; (simple and easy to make)

2. Use hexagonal slotted nut + split pin; (increased processing procedures compared to the same period last year)

3. Padded stop washer; (increased processing procedures compared to the same period last year)

4. Insert the steel wire into the hole of the hexagon head of the hexagon bolt. (Processing process increased year-on-year)

Flat washers are also called flat washer mesons, which are mainly stamped out of iron plates. The shape is generally round or square with a hole in the middle. The size of this hole is generally corresponding to the bolt diameter, and it can also be made according to customer requirements. Normally, the flat washer holes for bolts of the same specification are the same, and the outer diameter and thickness are different. For example, the hole diameter of the flat washer for M10 bolts is 10mm, and the outer diameter and thickness are not fixed.

Galvanized flat washers

Flat washers are often used to reduce friction, prevent leakage, isolate, prevent loosening, or distribute pressure. Many materials and structures have such components, which are used to perform various similar functions. Limited by the material and process of threaded fasteners, the supporting surface of bolts and other fasteners is not large. Therefore, in order to reduce the compressive stress of the pressure-bearing surface to protect the surface of the connected part, the bolts are often equipped with flat washers, so Flat washers are indispensable auxiliary accessories in bolt fasteners.

304 stainless steel flat washer

According to the pressure limit and the use environment, the material of the flat washer is also different. Commonly used flat washers are made of iron, carbon steel, stainless steel, copper, plastic, etc. The size of flat washers is generally divided into standard size, enlarged, thickened, and enlarged thickened.