Bolts and nuts are among the most important practical tools in various industries and fields. These two important devices are used to connect two parts to each other and are produced in different types and materials. A screw is a device that is designed and made in the form of a round rod with spiral threads placed on it in different materials. The meaning of nut is a ring-shaped piece that is made in different materials with circular grooves placed inside it. To fasten two different parts, it is very important to choose bolts and nuts of the same type and size. Because each of these tools is unusable without the other.
Bolt
Screws and nuts have a high variety in terms of material and appearance. One of the most widely used types of them is long bolts and nuts, which are used in most fields. This type has a higher height and is used in cases where a long screw is needed. This type of screw is manufactured and marketed in different materials such as iron, steel, stainless steel, etc. Users can choose and buy one of these types according to their needs. Another widely used type is their industrial type. Industrial bolts and nuts are used to connect parts and tools used in industry. As a result, they are made of more resistant and stronger materials against harsh conditions.
Bolt specifications
These products are used in various industrial fields due to their many applications. In order to use it better, it is very important to choose the best bolt and nut in terms of its shape and material. The stainless steel type is one of the most widely used types. Due to the presence of steel alloys, these tools have high resistance in wet and corrosive environments. As a result, users can buy this tool in sensitive environments without worrying about their loss over time. Among the most important parameters that distinguish different types of steel screws and nuts are their grades. In general, stainless steel beads are produced and consumed in the following two categories:
- پیچ و مهره استیل گرید A2 یا ۳۰۴
Tips on bolt purchases
The most important important points in buying bolts and nuts are:
Form Flower (Pickle):
The flower form of the screw or screw head that helps you to choose the desired screw easily when buying. Based on this, screws can be purchased in various types, such as ear-headed, square-headed, or square-eared screws, Allen, room, box, headless, ring-headed, eye, etc.
Type of consumption in question:
It is important to pay attention to whether the tool is needed for construction or industrial connections; Because most of these parts have a similar appearance, but their performance and the type of related uses are completely different.
Grade Parts:
The amount of resistance of bolts and nuts is determined based on the determined standard or grade. For example, some important and widely used screw grades include: 4.8, 5.6, 6.8, 8.8, 10.9, etc. These types of screws can be used in different industries and constructions according to their class type.
Pay attention to the product standard:
The existence of standards for important parts such as bolts and nuts is mandatory. The most important of these standards are German DIN, US ASTM and ISO.
Size and Dimensions Fits:
The lack of compatibility of these types of parts with each other will create a poor quality connection that will cause problems in the long run.
Plating:
The type of parts coating and galvanization is one of the important points of managers and experienced engineers. For this purpose, note that the selected parts have three types of hot, cold and dichromate galvanizing.
