How to use each type of screws
Screws are essential components for fastening two objects together,
resembling nails but featuring helical threads that provide superior holding
capability. Commonly used industrial screws include various types such as
countersunk screws, socket head screws, self-drilling screws, worm screws,
thread-cutting screws, wood screws, construction screws, and terminal screws.
Additionally, screw heads are available in multiple configurations, including
slotted, flat, square, hexagonal, and Torx heads, among others.

Socket screws are distinguished by their high torque capacity,
providing superior precision and strength compared to other screw types. Socket
screws are commonly manufactured from materials such as stainless steel and
alloy steel. These screws are extensively utilized in precision machinery
assembly applications, including electronics, automotive components,
construction projects, and aerospace equipment, due to their strength combined
with safety features and enhanced torque handling capabilities.

Hexagon bolts are popular due to their ease of use. In the
construction sector, hexagon bolts are essential for structural connections,
securing beams and structural components together to ensure stability. In the
industrial machinery manufacturing sector, hexagon bolts are used for
assembling heavy machinery and equipment, providing the necessary strength to
handle operational stress. The automotive industry relies on this type of screw
for engine assembly, body components, and critical chassis structural connections.

Self-tapping screws are capable of creating their own threads when driven into materials or workpieces, eliminating the need for pre-drilling and thread tapping. Self-tapping screws offer versatility and can be used with metals, wood, and plastics. This type of screw is suitable for applications requiring disassembly and reassembly due to their ease of use and strong holding power, making them popular in construction work, furniture manufacturing, and DIY projects.

Self-drilling screws are specialized screws featuring drill
bit-shaped tips that can immediately penetrate workpiece materials without
requiring pre-drilling like other screw types, and must be used with electric
drills and screwdriver bits. They are commonly used for fastening roofing
sheets, lightweight wall panels, siding, and plywood materials. Self-drilling
screws are primarily manufactured from carbon steel and stainless steel.

Machine screws are manufactured from low carbon steel and stainless
steel, designed for use with workpieces that have pre-drilled and tapped holes,
or can be used in conjunction with nuts. Machine screw heads offer various
configurations for convenient selection appropriate to specific applications,
such as flat head, round head, pan head, and hex head with washer. Popular
drive types include slotted and Phillips configurations. These characteristics
make them suitable for assembly work in industrial machinery, electronics, and
other applications.