Yangjiang Huangcheng Hardware Products Co., Ltd

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2023
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06
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10
Standard for hexagon bolts and representation thereof
If the hexagonal bolt according to the national standard, its specifications are large and small, such as small M3, M4, M6, etc., such as large can reach M64. At the same time, it is also divided into A and B class hex bolts, if it is A class, it is used for D less than 24 mm.
2023
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06
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10
Pull riveting nut correct pull riveting method
01Stroke adjustment riveting processAt present, knurled round rivet nuts are widely used in aluminum alloy bodies, and pneumatic riveting guns with stroke adjustment are installed on the prefabricated bottom holes to provide threads for subsequent assembly.
2023
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06
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10
Precautions for installing rivet nuts
Rivet nuts are a type of fastener that can be used in industrial, aviation and mechanical manufacturing. Because the riveting nut has good riveting effect, high working efficiency and easy to use, it is an irreplaceable nut in various fields. But many people lack understanding of riveting nuts and do not know how to properly install riveting nuts.
2023
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06
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10
The specific function of slotted nuts
Slotted nuts mainly refer to hexagonal slotted nuts, that is, slots are processed above the hexagonal nuts. It is used with the screw bolt with hole and cotter pin to prevent the bolt and nut from rotating relative to each other. The hexagon slotted nut is generally used in the occasion of vibration and impact. After the nut is fastened, it needs to be equipped with cotter pin holes and loaded into cotter pin.
2023
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06
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10
High strength bolt inspection
High strength bolts are bolts made of high-strength steel, usually used for connecting bridges, railways, wind power, steel rails, and high-voltage equipment. These are all large-scale engineering projects or equipment, and high-strength bolts play a very important role in them.
2023
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06
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10
Classification of high-strength bolts
The shape and connection structure of high-strength bolts are basically the same as those of ordinary bolts. The working principle of high-strength bolt connection is to deliberately apply a large pre-tension to the bolt, so that the extrusion pressure between the contact surfaces is generated, so the friction force perpendicular to the direction of the screw is large, and the connection shear force is transmitted by this friction force.
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