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01.31

How do you measure the size of a nut?

The measurement of nut dimensions requires selecting appropriate tools and methods based on specific parameters. The key dimensions include the nominal diameter of the thread, pitch, width across opposite faces, and thickness; each of these has a corresponding precise measurement method.

How do you measure the size of a nut?

01.31

What materials are used for plum blossom disc-head bolts?

The materials commonly used for bolts include stainless steel (such as 304 and 316), carbon steel, and alloy steel. Among these, stainless steel is widely used due to its excellent corrosion resistance, while carbon steel and alloy steel are often employed in applications requiring high strength.

What materials are used for plum blossom disc-head bolts?

01.31

Connection method of plum blossom disc-head bolts

The connection method of bolts relies primarily on their unique head structure and threaded engagement to achieve reliable fastening. They are widely used in applications that demand high slip resistance and connection strength.

Connection method of plum blossom disc-head bolts

01.31

What grade are aviation bolts typically made of?

The threads of aviation bolts generally use Grade 3 precision, which corresponds to a medium fit—this is the standard choice for most aviation bolts.

What grade are aviation bolts typically made of?

01.31

Process Flow for U.S.-Standard Twelve-Point Bolts

The production process for American-style twelve-point bolts is primarily designed based on their material properties, strength grades, and manufacturing standards. Typically, cold or hot upsetting is used as the core forming process.

Process Flow for U.S.-Standard Twelve-Point Bolts

03.23

What material is the triple combination screw made of? What's the use?

The three-combination screw is mostly used for the connection between thin metal plates to play a connection role. When connecting, first make the bottom hole of the connecting piece, and then screw the combination screw into the bottom hole of the connecting piece. Due to the high hardness of the thread surface of the combined screw, the internal thread can be screwed into the bottom hole of the screw to be connected to form a connection.

What material is the triple combination screw made of? What's the use?

03.23

The scope of application of hardware parts

Hardware parts are used in daily life and industrial production of hardware products as auxiliary and accessory finished products.

The scope of application of hardware parts

03.23

Combination screws are widely used and have a variety of different structural forms

Combination screws are widely used, and various structural forms are known. It consists of a screw, and the washer is fixed on the screw without loss. To this end, the washer is inserted into the screw blank, and then the thread is introduced into the screw mainly by thread rolling, so that the screw is kept above the threads on the screw without losing.

Combination screws are widely used and have a variety of different structural forms

03.23

Nuts that never loosen—Analysis of the principle of hard lock nuts

As the saying goes, "every country has its own advantages and disadvantages in various fields." Speaking of neighboring Japan, your first impression may think of the powerful automobile manufacturing industry and beautiful natural scenery.

Nuts that never loosen—Analysis of the principle of hard lock nuts

03.23

The small hard lock nut represents the spirit of unremitting efforts of domestic scientific research workers

By the end of 2019, the total mileage of my country's high-speed rail has exceeded 35,000 kilometers, building the world's most developed high-speed rail network. However, for a long time, the vibration caused by high-speed railway running on the track has a great influence on the stability of parts and components, and it also directly threatens the safety of trains.

The small hard lock nut represents the spirit of unremitting efforts of domestic scientific research workers

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