Q:For the commonly used standard parts, for some of the quality of good or bad, how to distinguish,

If the hexagonal hexagonal, with your fixed wrench or torque wrench directly try the size of the accuracy, tight to see a few times to see wear resistance.

Q:Who include who btween them?

Some people have a national (industry) standard type of fasteners called standard fasteners, referred to as standard parts.

Q:Bolts and other connection fasteners some points A B C grade what it means

The same standard number! Different grades of bolts, their material is not the same! Just their detection method just the same!

Q:High-strength screw standard parts of the quality of what data

High strength bolts are made of high strength steel, or bolts that require greater preload. High-strength bolts are tightened with a special wrench nut, the bolt has a huge and controlled pre-tension, through the nut and the pad, the connector also produced the same size of the pre-pressure.

Q:Does the fastener include screws?

Fastener fasteners are also known as standard parts on the market and are a generic term for a class of mechanical parts that are used when two or more parts (or components) are tightly connected as a unit. It is characterized by a wide variety of specifications, performance purposes vary, and standardization, serialization, the degree of generalization is very high. Fasteners are the most widely used mechanical base pieces and are in great demand.

Q:Fasteners are used in what areas?

Fasteners are a class of mechanical parts that are used for fastening connections and are widely used. All kinds of fasteners can be seen in all kinds of machinery, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, instruments and supplies. If the fasteners are removed from reality, many of the equipment,

Q:What are all the fasteners?

Go to the professional fastener website to learn it! Really too much, too hard to classify. I hope I can help you.

Q:Will the stainless steel fastening standard parts of the national standard code and name?

This need to ask the district to do fasteners manufacturers know

Q:Are there categories of fasteners classified by material?

Mainly carbon steel, alloy steel, stainless steel, other materials category

Q:What fasteners are manufacturers in China?

(8) Spring rain (Dongguan) Hardware Products Co., Ltd. (9) Zhejiang New Oriental Fasteners Co., Ltd. (10) Cixi Zhenning Machinery Co., Ltd.