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Carbon Steel Self Drilling Screw Custom

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Carbon Steel Self Drilling Screw
Carbon Steel Screw

Carbon Steel Self Drilling Screw

The classification of self-drilling nails is relatively simple. Mainly divided by head type, there are: cross slot countersunk head drilling nails, cross slot pan head drilling nails, rice groove pan head self-drilling nails, slotted pan head drilling nails, slotted countersunk head drilling nails, eleven word composite groove pan head drilling nails, cross wafer head drilling nails, hexagonal head washer face drilling nails, hexagonal one-slot point full drilling nails and so on.
Model number
ST5.5 * 35
Category
Self-drilling self-tapping screws
Head shape
Hexagon head
Groove profile
Outer hexagon
Screw diameter
5.5 (mm)
Product specification
ST3.5 * 13, ST3.5 * 16, 19 ST3.5 * and ST3.5 * 25, ST3.5 * 32, 38 ST3.5 * and ST3.5 * 45, 50 ST3.5 * and ST3.9 * 13, 16 ST3.9 * and ST3.9 * 19, 25 ST3.9 * and ST3.9 * 32, ST3 . 9 * 38, the ST3.9 * 45, 50 ST3.9 * and ST4.2 * 13, 16 ST4.2 * and ST4.2 * 19, 25 ST4.2 * and ST4.2 * 32, 38 ST4.2 * and ST4.2 * 45, 50 ST4.2 * and ST4.8 * 13, 16 ST4.8 * and ST4.8 * 19, ST4.8 * 25, ST4.8 * 32, 38 ST4.8 * and ST4.8 * 45, ST4.8 * 50, 60 ST4.8 * and ST4.8 * 65, ST4.8 * 70, ST4.8 * 75, ST5.5 * 16, ST5.5 * 19, 25 ST5.5 * and ST5.5 * 32, ST5.5 * 35, ST5.5 * 38, 45, STT5.5 * ST5.5 * 50, 55 ST5.5 * and ST5.5 * 65, ST5.5 * 75, ST5.5 * 80, ST5.5 * 90, ST5.5 * 100, ST5.5 * 125, ST6.35 * 16, ST6.35 * 1 9, 25 ST6.35 *, ST6.35 * 32, 38 ST6.35 * and ST6.35 * 50, ST6.35 * 65, ST6.35 * 75, ST6.35 * 80, ST6.35 * 90, ST6.35 * 100, ST6.35 * 125
Mode of action
Self-drilling
Thread specification
ST5.5
Thread tolerance
6G
Nominal length
35 (mm)
Surface treatment
Zinc Plated
Material grade
Carbon
Product grade
Level A
Standard number
DIN7504K
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About Our Company

A Mature Factory You Can Count On

Ningbo Flyer Hardware Co., Ltd was founded in 2008. It is a professional Carbon Steel Self Drilling Screw company and Carbon Steel Self Drilling Screw suppliers located in the beautiful city of Ningbo, where it enjoys convenient transport conditions and a favorable environment, with the Shanghai-Hangzhou Expressway and Ningbo Lishe International Airport to the west and Beilun port to the east, 60 kilometers away. We manufacture drywall screws, Hex washer head self-drilling screws, chipboard screws, cement board screws, tapping screws, etc. To meet the rising demand for our products, we constructed a 10,000-square-meter workshop in 2015, and the monthly output is now between 500 and 600 tons. The company was founded on the quality, integrity, and customer-first business principles, and its products have received CE certification for the European market. The company's high product quality has won the praise and affirmation of the general public, and it has laid a solid foundation for its future growth. We specialize in Custom Carbon Steel Self Drilling Screw, and other types of hardware accessories, with a full range of varieties, and can customize production according to your drawings, We cordially invite you to visit our business and welcome your suggestions; we look forward to forming a strategic partnership with you and providing greater commercial value to you.

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Industry Knowledge Extension

A carbon steel self drilling screw is a type of fastener designed for drilling its own hole and forming threads in a single operation. These screws are commonly used in construction and metalworking applications where a quick and efficient fastening method is required.

Is it necessary to pre-drill holes when installing carbon steel self drilling screw?
The biggest feature of carbon steel self drilling screws is their self drilling ability, which does not require pre drilling. The head of self drilling screws is usually in the form of a pan or countersunk head, and the drill tail is equipped with a drill bit, which can be directly rotated into the material and form threads.
When using carbon steel self drilling screws, screw the screw into the desired position and apply appropriate pressure through a screwdriver or electric tool to rotate the drill bit of the self drilling screw on the material and form a threaded hole. As the threaded hole gradually forms, the self drilling screw can automatically follow and screw into the hole until it reaches the desired depth.
Therefore, for carbon steel self drilling screws, there is no need for pre drilling, and they can be directly installed and form threaded connections. This can improve work efficiency, reduce material waste and processing time, and lower costs.

Is there a corrosion-resistant coating on the surface of the carbon steel self drilling screw?
Carbon steel self drilling screws usually have anti-corrosion coatings to improve their corrosion resistance, especially when used outdoors or exposed to humid environments. Anti corrosion coating helps to slow down the oxidation and corrosion process on the surface of screws, thereby extending their service life.
The following are some common types of anti-corrosion coatings that may be used for carbon steel self drilling screws:
Zinc coating: Zinc coating is a common anti-corrosion coating that provides corrosion protection by forming a zinc layer on the surface of screws. Hot dip galvanizing and electrogalvanizing are two common methods.
Nickel plating: Nickel plating is a coating that provides corrosion resistance and can be used on carbon steel self drilling screws.
Coating and Painting: Some screws may have special coatings or paints to provide additional corrosion protection. These coatings can be organic coatings, adhesives, or other materials with good anti-corrosion properties.
Phosphating: Phosphating is a chemical treatment method that can form a phosphating layer on the surface of carbon steel to improve its corrosion resistance.