Xi'an Longjoy Foreign Trade Co.,Ltd
Xi'an Longjoy Foreign Trade Co., Ltd
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Bolt is a kind of mechanical part, which is a cylindrical fastener with thread used with nut.
It is composed of head and screw (cylinder with external thread), which shall be matched with nut to fasten and connect two parts with through holes.
This connection form is called bolt connection and belongs to removable connection.
Material: Stainless steel (304, 316, 201)
Standard: GB,DIN,BS,ISO,JIS,ANSI
Size: M2-M48 or as request
Length: According to customer requirements
Finish: Plain,Zinc Plated
Grade: 4.8,8.8,12.8,A2,A4,T4,T6 etc
Heat Treatment: Tempering,Hardening
Specification: Various head style
DIN933 DIN931 high strength M8 M10 Grade 8.8 10.9 Bolt technical data sheet as below:
| d | k | e | s |
| M 3 | 2 | 6.01 | 5.5 |
| M 4 | 2.8 | 7.66 | 7 |
| M 5 | 3.5 | 8.79 | 8 |
| M 6 | 4 | 11.05 | 10 |
| M 8 | 5.3 | 14.38 | 13 |
| M 10 | 6.4 | 18.9 | 17 |
| M 12 | 7.5 | 21.1 | 19 |
| M 14 | 8.8 | 24.49 | 22 |
| M 16 | 10 | 26.75 | 24 |
| M 18 | 11.5 | 30.14 | 27 |
| M 20 | 12.5 | 33.53 | 30 |
According to the stress mode of connection, it can be divided into ordinary and reamed holes.
According to the shape of the head: hexagonal, round, square, countersunk, etc.
The hexagonal head is the most commonly used. Generally, countersunk head is used for special connection.
Bolts are used in electronic products, mechanical products, digital products, power equipment, electromechanical mechanical products. Ships, vehicles, water conservancy projects, etc.