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Fastener Thread Tightening Principle II
2021/07/16
The relationship between tightening torque and tightening axial forceWhen force is applied to the nut, a moment is generated. Torque: T=F*L;The tightening torque consists of two parts:1) Bearing surfa...
Fastener Thread Tightening Principle I
2021/06/09
The tightening of threaded fasteners is not what we imagined. In fact, there are many ways to fasten threaded fasteners, but the simplest method is to use a hand wrench tool to tighten. Although this ...
What are the Advantages of Hexagon Socket Screws?
2021/05/28
In our daily life, if you carefully observe the connecting parts-screws on mechanical equipment, you will find that many mechanical types of equipment use hexagon socket screws. What are the advantage...
What are the Advantages of Hexagon Socket Screws?
2021/04/27
In our daily life, if you carefully observe the connecting parts-screws on mechanical equipment, you will find that much mechanical equipment uses hexagon socket screws. What are the advantages of hex...
What is a Stepped Weld Nut? What is the Difference with a Hexagonal Nut?
2021/04/21
What is a step weld nut?The stepped weld nut is a stepped nut suitable for welding outside the nut. Generally, it is made of weldable materials and thicker and suitable for welding. Welding is equival...
Mechanical Properties of Bolts
2021/03/16
1. Grade: The strength grades of metric bolts mainly include: 3.6, 4.6, 4.8, 5.6, 5.8, 6.8, 8.8, 9.8, 10.9, 12.9, a total of 10 performance grades.The distinction and meaning of high-strength bolts: b...
What are the Process Structures of Fastener Threads?
2021/03/14
There are four common process structures of fastener threads, namely: chamfer, screw tail, undercut and drill angle.1. ChamferIn order to facilitate the assembly of internal and external threads and p...
Fastener Screw Processing Process Steps
2021/03/12
The process of fastener screw manufacturing includes: plate element-annealing-pickling-cold heading-thread rolling-heat treatment-electroplating-packaging.1. Plate ElementRefers to the original wire r...
Brief Introduction of the Different Classification of Fasteners and Screws
2021/03/11
As a common part of fastener, screw is widely used, and its types can be divided into many kinds according to different ways.1. Fastener screws are divided into machine screws and self-tapping screws ...
What are the Differences between Fastener Bolts and Screws?
2021/02/24
Bolts and screws are our common connection fasteners, which mainly play the role of connection and fixing in various fields and equipment. The difference between fastener bolts and screws:1. The defin...
Types and Causes of Surface Defects of Fastener Nuts-II
2021/02/21
3. BurstBurst is also a crack on the metal surface.Causes for bursting: during the forging process, due to surface defects of the raw materials, bursting may occur, such as on the outer surface of the...
Types and Causes of Surface Defects of Fastener Nuts-I
2021/02/20
Fastener nuts are common parts of connectors. For the use of fastener nuts, common surface defects are: cracks (quenching cracks, forging cracks and slag cracks, cracks in the locking part of the all-...
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