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The difference between coarse thread and fine thread of stainless steel bolts

The difference between coarse thread and fine thread of stainless steel bolts

No need to mark the pitch, such as M8, M12-6H, M16-7h, etc., mainly used for connecting threads. Compared with fine thread, the pitch is large, the thread lead angle is also large, and the self-locking property is poor. Generally, it is used with spring washers: the pitch is large, the tooth shape is deep, and the strength of the main body is greatly reduced. The advantage is that it is easy to disassemble and assemble, and the matching standard parts are complete and easy to interchange.

2021

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11

Strength grade classification and classification of stainless steel bolts

Strength grade classification and classification of stainless steel bolts

Different grades of bolts have different hardness ranges. Generally speaking, the higher the grade of the bolt, the higher the hardness range. Speaking of hardness, let's first popularize the knowledge of hardness. Hardness is an indicator of bolt performance and can be measured with a hardness tester.

2021

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11

Detailed explanation of the factors causing screw breakage

Detailed explanation of the factors causing screw breakage

As we all know, all screws have grades. This grade is determined by the tensile strength and shear strength of the screw. If the stainless steel screw breaks, it is not a problem with the stainless steel screw itself, then the tensile force and shear force exceed the ultimate strength of the stainless steel screw. The reasons for the breakage of stainless steel screws are as follows:

2021

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11

How to express bolt specifications and understand bolt specification descriptions

How to express bolt specifications and understand bolt specification descriptions

Bolt specification M14 represents a metric bolt with a thread diameter of 14mm. M represents "metric, metric" thread. The complete thread marking is composed of: thread feature code + size code + tolerance zone code + other information + standard code (such as: adding national standard code to domestic screws)

2021

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11

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Haina Yangzhou Haina Auto Parts Manufacturing Co.,Ltd

Tel: 0086-514-87460083 / 87460089

E-mail: export@haina-autoparts.com /

info@haina-china.com

Fax: 0086-514-87460089

Add: Gaoqiao town, Guangling Industrial Park, Yangzhou, Jiangsu, China

P.C.:225006

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