DIN912 Hex Socket Bolts

 

DIN 912 is a standard specification of hexagon socket head bolts, also known as hexagon socket head screws. This bolt is usually made of carbon steel, stainless steel or alloy steel and has excellent strength and corrosion resistance. Their heads are designed to be hexagonal and can be turned and tightened using an Allen key or wrench.

Hexagon socket head bolts are ideal for installation areas where space is limited. Use an Allen wrench to install these screws, allowing access to tight spots where traditional Allen drive bolts cannot.

Bolts with performance levels above 8.8 usually become high-strength bolts

Product name: DIN912 hex socket bolts

Bolt type:Hex socket head bolt

Head diameter:Customized from 1.4-100mm

Material:Class 12.9 steel

Finish:Black Oxide

Specification:DIN912

Thread direction:Right hand

Bolts with performance levels above 8.8 usually become high-strength bolts

Socket head cap bolts are an essential fastening component found in various industrial and construction applications.

1.High tensile strength. They are resilient and can bear shock and large loads without breaking.

2. Robust: High-quality materials that are resistant to rust, corrosion, and wear are used to make these nuts. Button head socket cap bolts endure longer than regular bolts and can tolerate adverse weather conditions.

3. Simple to Install: Compared to other bolts, these bolts are simple to install and tighten due to the socket head design. To precisely secure them into position, you can just use a wrench.

4. Attractive Design: Socket head cap bolts feature a smooth, attractive design that makes them perfect for applications where aesthetics are important.

5. Wide Size Range: These bolts are offered in a wide range of sizes, making them appropriate for a variety of applications from aerospace to automotive.

High-strength bolts are mainly used in outdoor projects, wind power, or dynamic machinery, and have relatively high tensile strength. Two intensity levels, 8.8S and 10.9S, are commonly used, with 10.9 being the most common.

The strength grade of ordinary bolts is lower, generally 4.4, 4.8, 5.6 and 8.8.

From the perspective of raw materials

High-strength bolts are made of high-strength materials. The screws, nuts and washers of high-strength bolts are all made of high-strength steel.

Commonly used are 45 steel, 40 boron steel, 20 manganese titanium boron steel.

Ordinary bolts often use Q235 steel manufacturing

From the perspective of force characteristics

High-strength bolts exert pre-tension force and transmit external force by friction. Ordinary bolt connections rely on the shear resistance of the bolt rod and the pressure-bearing of the hole wall to transmit shear force.

The pre-tension force generated when tightening the nut is very small. The impact is negligible, but high-strength bolts, in addition to their high material strength, also exert a large pre-tension force on the bolts, causing an extrusion force between the connecting components, resulting in a large friction force perpendicular to the screw direction, and the pre-tension force Both the anti-slip coefficient and the type of steel directly affect the bearing capacity of high-strength bolts.

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