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We mainly produce carriage bolts in various standards such as GB, ordinary, high-strength, imperial, American, German, DIN603, DIN607, DIN608, Japanese

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DaDuo Carriage Bolt

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U bolt


U bolts, named for their U-shaped structure, are specialized fasteners consisting of a U-bent bolt body and matching nuts.

Spring Washer


Spring washers, also known as elastic washers, are essential anti-loosening fastening accessories with a disc-shaped, elastic structure.

Screw


Screws are essential universal fasteners widely used in various industries, featuring a cylindrical body with external threads that cooperate with nuts or threaded holes to achieve secure connection, fastening, and fixing.

Hex Socket bolt


Hex Socket bolts, also known as socket head cap screws, are high-precision fasteners characterized by a cylindrical head with an internal hexagonal socket.

Use of carriage bolts


A carriage hitch is a device used to secure horses. It has important application value in ancient and modern times.

Maintenance of the carriage bolt


As an important part of the carriage, the maintenance work is very important. Proper maintenance can not only extend the service life of the carriage bolt, but also ensure the smooth and comfortable driving

How to prevent the phenomenon of "locking" of stainless steel standard parts


First-class stainless steel standard parts have good ductility, and when not in use, commonly known as "locking" or "biting" phenomenon can occur, which puts staff in a dilemma. Locked stainless steel standard parts are also difficult to remove. In the event of similar phenomena, share the following usage precautions to reduce unnecessary trouble for users.

Application of stainless steel bolts


There are many names for bolts, and each person's name may be different. Some people call them screws, some call them bolts and nails, and some call them fasteners. Although there are so many names, the meaning is the same, they are all bolts. Bolt is a common term for fasteners. A bolt is a tool that utilizes the physical and mathematical principles of the oblique circular rotation and friction of an object to gradually tighten the mechanical components of the object.

Two tips on hardware and stainless steel fasteners


The use of stainless steel as a material for fasteners can be said to have significant advantages in various aspects of manufacturing, use, or treatment. Therefore, although stainless steel as a material for fasteners itself has higher costs and relatively short cycle life, it still belongs to a relatively cost-effective solution for fasteners.

Stainless steel standard parts | How to prevent stainless steel screws from locking?


The locking problem of stainless steel standard parts is one of the problems encountered during the use of screws. How to solve the locking problem of stainless steel screws? Huashenao Standard Parts provides a brief list of the following solutions for everyone.