If you started repairs or decided to fix any item, then you must remember that when connecting surfaces with bolts you cannot do without flat washer . Read more about these indispensable fasteners below.
Washer types
In addition to flat washers, there are several other types:
- Spring;
- Round;
- Conical;
- Poppet;
- Oblique;
- · Multi-footed.
However, the article will focus on a flat representative of its kind, since these washers are most common.
Purpose
The main purpose of flat washers is to prevent self-loosening of other fasteners such as screws, bolts or self-tapping screws, for example. This increases the clamping area, which helps to reduce the likelihood of surface damage, as well as increase the bond tightness
Features
A flat washer is a circle with a hole in the middle, in other words, a ring. They come in several sizes, namely.
- · Reduced. It has different thicknesses with a bevel of forty degrees. Allows you to hide the attachment points for a cosmetic effect;
- · Normal. The most common type;
- · Increased. Unlike the first ones, they have the same thickness, they are most often used in construction;
- · Reinforced. Designed to further increase surface pressure.
Principle of making flat washers
Typically, these fasteners are made from galvanized sheet or bar steel. There are 2 manufacturing methods:
1. Slicing. More time consuming process, which translates into increased cost. It consists in the fact that washers are cut from a metal circle on a special machine.
2. Stamping. A cheaper option, as the crafting process allows you to create pucks in large batches, which saves a lot of time.
How to use
There is nothing particularly complicated in the use of flat (and other types) washers. Basically, you just need to put it on the bolt and tighten the last to the limit. You just need to make sure that there are no gaps between the surface and the washer itself. Also, do not overdo it in the case of wooden products, as they can be damaged.
Thus, fasteners such as washers are used almost everywhere, from heavy industry and mechanical engineering to ordinary home repairs. Washers and other fastener components can be purchased at http://www.metiz.net/.
