Common types of screws:
A: Machine Screw: Mechanical screws
B: Tapping Screw: Self tapping screw (available in two types: metal and plastic)
B-1: Sheet Metal Tapping Screw
B-2: Plastic Tapping Screw. (For plastic, self tapping screws)
C: Wooden Screw: Wood screw
D: Drywall Screw: Cement Wall Screw
E: Self Drilling Screws (Stainless Steel Drill Screws, Composite Drill Screws) This product is suitable for
1. Stainless steel plate, metal steel plate, galvanized steel plate, engineering installation.
3. General angle steel, channel steel, iron plate and other metal materials are installed in combination.
4. Assembly projects for automobile containers, shipping containers, shipbuilding industry, refrigeration equipment, etc.
Headform
Various head shapes of screws. Cylindrical head. Half sunk head. Sink your head. Spherical cylindrical head. Plate head. Half round head. Hexagonal
head.
Common screw 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 belongs to stainless steel and the like
c. SS-302: Stainless Steel 302: Has good structural toughness
d. Aluminum 5052: Aluminum alloy 5052
e. Brass: Brass
f. Bronze: Bronze
G UNS C11000 Copper: antimony copper
There are many commonly used screw materials, roughly two types. One is carbon steel, which is iron. Carbon steel can be divided into low carbon
steel, medium carbon steel, and high carbon steel. Another type is stainless steel, which includes stainless steel SUS201.304.316 and so on.
To a certain extent, the quality of screw materials determines the quality of screws themselves. Therefore, manufacturers in the screw industry must
choose high-quality screw materials for production. To better ensure the quality of screws.