Common Materials of Socket Hexagon Security Screw

In our daily life, socket hexagon security screw is very common. So screw manufacturers should be familiar to it. Today, let us learn the common materials of socket hexagon security screw.

1. Carbon steel

We distinguish low carbon steel, medium carbon steel, high carbon steel and alloy steel by carbon content in the carbon steel material.

A.Low carbon steel, C % ≤0.25%. It often refers to as A3 steel in China. It is known as 1008,1015,1018,1022 abroad. It is mainly used for the products with no hardness requirement, such as level 4.8 bolt, level 4 nut and small screws.

B.Medium carbon steel, 0.25%~0.45%. At present, the market don’t use it.

C.Alloy steel. Adding alloying element into the general carbon steel can increase the special performance of steel.

2. Stainless steel

Its performance levels: 45,50,60,70,80. It is mainly divided into austenite, martensite and ferrite.    


The commonly used material is the brass and copper zinc alloy. On the market, it mainly use H62, H65, H68 brass as the standard parts. The optional material of level 4.8 hexagon security screw: 1008K, 1010, 1015K. The optional material of level 6.8 hexagon screw: 1032, 1035, 1040, CH38F, 1039. The optional material of level 8.8 hexagon screw: 1035ACR (below M10), 1040ACR (above M12), CH38F, 1045ACR, 1039 10B21, 10B33, 10B38.

  Above is the common materials of socket hexagon security screw. I hope it can be helpful to you.

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Dongguan King Tower Hardware Co.; Limited is a professional manufacturer of stainless steel screws, 304 stainless steel screws, 410 stainless steel screws, 430 stainless steel screws, non-standard screws, self-tapping screws, combination screws, mobile phone screws, hexagonal socket screws, CD pattern screws, lock screws, chassis screws, copper screws , Phillips screws, triangular slot screws, national standard screws, ANSI screws, GB screw, taptite screw, colored screws, countersunk screws, brass screws, black screws, environmental protection screws, 
anti-theft screws, non-slip screws, waterproof screws, lock screws and other small screw manufacturers.

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