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Common types of screws and common screw materials


Common types of screws:

A: Machine Screw

B: Tapping Screw: (for metal and plastic)

B-1: Sheet Metal Tapping Screw

B-2: Plastic Tapping Screw

C: Wooden Screw

D: Drywall Screw 

E: Self Drilling Screws

1 Stainless steel plate, metal steel plate, galvanized steel plate, engineering installation.

2 metal curtain wall metal light compartment and other indoor and outdoor installation.

3 general angle steel, channel steel, iron plate and other metal materials combined with the installation.

4, car trunk, container box, shipbuilding industry, refrigeration equipment and other assembly projects.

Features of this product:

1、Drilling and tapping, locking is completed in one time, strong bonding force.

2、Save time and improve work efficiency.


E-2:Bi-Metal Self Drilling Screws

Common screw materials

a. Carbon Steel Carbon steel is available in low carbon, medium carbon, high carbon and alloy steel.

b. SS-304 : Stainless Steel 304, 316

c. SS-302: Stainless Steel 302: better structural toughness

d. Aluminium 5052

d. Brass

e. Bronze

f. UNS C11000 Copper