Introduction of Hex Socket Security Screw

source：    Author：Catherine    views：258    Release time：2014-12-29

1. Product Introduction:

Cylinder head hex socket security screw, also refers to as hexagon socket screw, hexagonal socket head cap screw, and inner hexagon screw. Its name is different, but represents meaning is the same. The commonly used cylinder head hex socket security screw has a magnitude of 4.8, 8.8, 10.9, and 12.9. Its head is hex head, and also is cylinder head. According to the material, it can be distinguished into stainless steel and iron. Stainless steel include stainless steel SUS202 hex cylinder head screw, which is the common material of stainless steel, stainless steel SUS304 hex cylinder head screw, and stainless steel SUS316 hex cylinder head screw. According to the strength grade of inner hexagon cylinder head screw, Iron can be distinguished into 4.8 hex cylinder head screw, 8.8 hex cylinder head screw, 10.9 hex cylinder head screw and 12.9 hex cylinder head screw. 8.8-12.9 magnitude hex cylinder head screw is called high strength and high grade hex cylinder head screw. Its Standard No: GB/T 70.1 2008.

2. Product Use:

Similar to the countersunk head screws, nailhead is embedded in the parts. Connection intensity is big. But the security screw must be installed and dismantled by the corresponding specification wrench. It is commonly used in all kinds of machine tools and accessories.

3.Specifications:

The national standard of cylindrical hex socket security screw is GB70-1985. There are many sizes. The commonly used specifications include 3 * 8, 10, 3 * 3 * 12, 3 * 16, 3 * 3 * 20 45, 4 * 8, 4, 3 * 3 * 30 * 10, 4 * 12, 4 * 16, 4 * 4 * 20 35, 4, 4 * 4 * 30 * 45, 5 * 10, 5 * 16 * 12 and 5, 5 * 25 * 20, 5, 6 * 12, 6, 8 * * 16 * 14, 6, 6 x 25 14, 8 * 16, 8 * 8 * 20 30, 8, 8 * * 35, 8 * 40, and so on.