The Purchase Strategy Of Expansion Bolts Is Good For Everyone Who Has Used Them!

We often hear people say expansion bolts. What's the use of expansion bolts? The expansion bolt is a special threaded connector that fixes the bracket or equipment on the wall or floor. It is generally based on the principle of friction generated by expansion to achieve the fixation principle. When the expansion bolt is punched into the hole, the metal sleeve of the bolt expands and fills the entire hole, which can play a very good fixation role!

Expansion bolts are used in many places, especially on buildings, such as installing mechanical equipment, air conditioning racks, stainless steel doors and windows, crystal lights, swings, etc. There are also many kinds of expansion bolts, including plastic expansion, countersunk expansion, expansion hook, and stainless steel expansion. The expansion of stainless steel can be divided into external expansion, internal expansion, and different types of expansion, which are used in different situations.

Under what circumstances, what type of expansion should be used? Go to the hardware store to buy expansion screws. What specifications should I buy? It's better to collect the following table and buy the screws of what specifications under what circumstances. It can be seen at a glance and save time.

At present, there are mainly these kinds of expansion screws on the market, and the specifications and use occasions are listed for you.

Plastic expansion bolt

This kind of plastic expansion is equivalent to the replacement of traditional wooden wedges. The conventional models are 6x30 and 8x40. These two models are generally used for the hanging parts of kitchen and bathroom, such as the hanging rod of towel, the hanging rod of knife, and the hanging cross stitch. Some lengthened 8x60, 8x80, 8x100, 10x80 and 10x100 are mainly used for hanging heavy objects, such as LCD TV sets and lampblack hoods.

Stainless steel expansion bolt

For the use of stainless steel expansion bolts, different expansion bolts are selected according to the actual situation of the wall. It is mainly divided into external expansion and internal expansion. The difference between internal expansion and external expansion is that after the external expansion is installed, the screw rod is exposed outside, while the internal expansion is in the wall. Generally, external expansion is one of the most commonly used expansion bolts in home decoration. The common ones are M6, M8, M10 and M12. In theory, the longer the force arm is, the greater the force is. When selecting, it is not necessary to select the longest one. It is better to select according to the actual situation. The stainless steel internal expansion bolts are mainly used for fixing crystal lamps, anti-theft windows, air-conditioning external units, swings, stair handrails, etc., as well as some occasions where the screws are not exposed.

The stainless steel pan head expansion bolt is also a kind of internal expansion bolt. During this installation, a hole should be drilled on the surface of the fixed object. After installation, the screw head is basically flush with the surface.

Generally, there are the following specifications: 6 * 60, 6 * 80, 6 * 120, 6 * 150.

6 * 60: the total length is 60mm, the casing length is 45mm, the diameter is 8mm, the wall thickness is 0.7mm, and the surface is coated with color zinc; The screw is 60 mm long, 6 mm in diameter, 35 mm in the thread part, and 8 mm in the bottom rod hammer. The surface is coated with color zinc; The nut is octagonal with an outer diameter of 10mm, a thickness of 5mm, and the surface is white zinc plated; The outer diameter of the gasket is 13mm, the thickness is 1mm, the inner diameter is 6mm, and the surface is coated with white zinc; The shrapnel is a ring with an outer diameter of 9mm, an inner diameter of 6mm and a thickness of 1.6mm.

6 * 80: the total length is 80mm, the casing length is 65mm, the diameter is 8mm, the wall thickness is 0.7mm, and the surface is coated with color zinc; Screw length, nut, gasket and spring piece are the same as above.

6 * 120: total length is 120mm, casing length is 105mm, diameter is 8mm, wall thickness is 0.7mm, and surface is coated with color zinc; Screw length, nut, gasket and spring piece are the same as above.

6 * 150: total length: 150 mm, sleeve length: 135 mm, diameter: 8 mm, wall thickness: 0.7 mm, surface is coated with color zinc; Screw length, nut, gasket and spring piece are the same as above.

Stainless steel expansion hook

The stainless steel expansion hook has a wide range of uses, which can be hung on the top of a lantern, a bird cage, or used horizontally. There are many inspection well anti-fall nets installed, and it can be used as a clothesline when it is hung on the wall. There are four specifications: M6, M8, M10 and M12. The single bearing capacity is 100 kg, 120 kg, 200 kg and 300 kg respectively.

Installation method of expansion bolt:

The above is some knowledge about expansion bolts compiled by Xiaobian. I hope it can help you in practical application. In short, expansion bolts are really a kind of screws with strong application.