Industrial Application of Screws


2023-05-29 09:59

The main purpose is to make industrial products fixed as a whole. During use, it is common to encounter precision issues such as the inability to close between teeth, excessive force locking causing the screw head to break, or poor tooth pattern locking that fails to meet the usage conditions. Screws are "quantity products", not handmade artworks. In mass production, they aim to achieve high-precision, stable quality, and affordable supply to consumers. The accuracy of screws is usually level 6g (level 2, American specification "IFI" is 2A teeth), and rough screws used in construction projects are level 8g (level 3, "IFI" is 1A teeth).
Common screw types
A: Machine Screw:
B: Tapping Screw: Self tapping screw (available in two types: metal and plastic)
B-1: Sheet Metal Tapping Screw (Iron plate thread self tapping screw)
B-2: Plastic Tapping Screw (For plastic, self tapping screws)
C: Wooden Screw: Wooden Screw
D: Drywall Screw: Cement wall screw
E: Self Drilling Screws (stainless steel drilling screws, composite drilling screws)
F: Expansion screw, also known as four piece gecko. The grades of expansion bolts are divided into: 45, 50, 60, 70, and 80. The material of expansion screws is mainly divided into austenitic A1, A2, and A4,
1. Stainless steel plate, metal steel plate, galvanized steel plate, engineering installation.
2. Metal curtain walls, metal light compartments, and other indoor and outdoor installations
3. Generally, angle steel, channel steel, iron plate are installed in combination with other metal materials.
4. Assembly works of car body, container, shipbuilding, refrigeration, screw machine equipment, etc.
1. Drilling and tapping teeth, locking completed in one go, with strong adhesion.
2. Save construction time and improve work efficiency.
E-2: Bi Metal Self Drilling Screws
Common materials
a. Low Carbon Steel: Carbon steel is divided into low carbon steel, medium carbon steel, high carbon steel, and alloy steel.
b. SS-304: Stainless Steel 304, 316 are all stainless steel or similar
c. SS-302: Stainless Steel 302: Good structural toughness
d. Aluminum 5052: Aluminum alloy 5052
d. Brass: Brass
e. Bronze
f. UNS C11000 Copper: antimony copper

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