Bridges are among the metal structures whose strength is very important and vital. In other words, bridges are arteries that connect the two sides of a river, a valley, a street, and so on, and therefore must bear a lot of weight and load. In the distant past, bridges were all made of such bricks and materials, and in Iran you can see some of the oldest bridges that are still standing…
Chromate conversion coating
question_answer0
Dichromate coating is a very resistant to corrosion and heat. Dichromate coating is a type of two-phase chemical corrosion resistant coating. This coating consists of placing two metals, aluminum and zinc, in an inorganic fibrous background next to each other. Compared to the corrosion-resistant coatings of the previous generation, it has significant features
DIN 931 – Hexagon head bolts with shank
question_answer0
Overview
Hexagon head bolts are used in industry or construction and produced in many types and forms. Today, one of the most widely used and common types of bolts are DIN 931 – Hexagon head bolts with shank. At present, it is purchased in different markets and used in different industries all over the world every year. The name of These bolts came from the shape and form of the hexagon head section.
Introduction to Many Types of Fittings in the Industry
question_answer0
Today, industrial fittings have many applications and They are used in many applications. Types of connections in the industry have special features that have made many people today interested in buying and using them. There are different types of industrial fittings, each with different applications.
Self Locking Screws
question_answer0
Even simple home improvement tasks are complicated by confusing instructions and obscure materials, such as self-locking screws. It is difficult to find the right material for this. If you do not understand what each material does or why you need them, the complexity is doubled. * Self-locking screws * are not much different from regular screws, but they may change some things about your building or renovation project.
Spring Washer or Split lock
question_answer0
Washers generally have two types of springs or flats. Spring washer also known as lock washers is placed between the bolt and nut, It is a piece separated from its two edges and looks like a spring spiral ring. Spring washers are commonly used with steel flat washers.
Hexagon Thin Nuts
question_answer0
Perhaps the first image that comes to mind of a hexagon nut is its hexagon! This image is correct and in fact it can be said that the name of this bead is taken from its appearance. Thin hexagon nut is a type of nut used in this field, which is in the shape of a hexagon and differs from hexagon nuts in their thickness.
Stud Bolts
question_answer0
In order to connect flanges and metal parts, There are many types of bolt connection that being uses in industry, one of them types is called Stud Bolt. This bolts are consists of an all-thread bolt and two nuts. These types of joints have ribs on both sides and can be connected on both sides. The structure of these bolts are often made of steel, which are also produced in different grades of steel.
Counter Sunk Head Bolts
question_answer0
What are the Counter Sunk Head Bolts and what do they look like?
These Bolts are similar in appearance to other Bolts and differ only in the shape of their heads. As you can see in the figure above, counter sunk head bolts do not have a spherical head unlike other bolts. These bolts come in a variety of sizes and lengths and can be all threaded or semi-threaded.
Plain Washers
question_answer0
There are many different types of washers, such as flat washers, spring washers, lock washers, shoulder washers,…
But today we want to talk about plain washers. These washers are actually a round metal plate with an inner hole through which screws are inserted. Simple washers are sometimes called flat washers.
Application of bolts in the construction industry
question_answer0
Everything you need to know about BOLTs and NUTs!
You who are reading this article probably have at least a basic acquaintance with bolts and nuts; But in general, and to begin with, it is better to say that the bolt is made of a cylindrical stem that has a series of grooves on its body, which is usually called a thread; In addition, it has a head that can be a circle, square or hexagon, depending on the type of bolt.
Din 933
question_answer0
DIN 933 is a large bolt with a hexagonal head that is mostly used for connecting wood to wood or wood to metal. These bolts, like other types of bolts and nuts, come in different sizes and can be said to vary in size from 1.4 to 4 inches. DIN 933 bolts are also called wrench bolts.
Self-Drilling Screw
question_answer0
In this section we are going to tell you everything you need to know about Self drilling screws. What kind of screws are self-Drilling screws? How and in what cases this type can be used and how they are made. So stay tuned.
Hexagon Head Bolts
question_answer0
What are hexagon Head Bolts? Hexagonal Head Bolts are kind of bolts which have a hexagonal head. These bolts are…