The types of high-strength bolts commonly used in industrial applications
author: www.qishine.com
2026-03-02
Four Most Common Bolt Types
1. Hex Head Bolt
Suitable for general machinery and structural connections, commonly used in applications requiring wrench tightening.
Suitable for general machinery and structural connections, commonly used in applications requiring wrench tightening.
Hex Head Bolt
2. Cylinder Head Socket Cap Screw
Typically used in precision machinery, molds, and instrument equipment.
Typically used in precision machinery, molds, and instrument equipment.
The head sits flush within a countersunk hole, providing a smooth appearance, and requires a hex key for installation.
Cylinder Head Socket Cap Screw
3. Countersunk Head Socket Cap Screw
Features a conical head that can be fully recessed into the workpiece surface,
Features a conical head that can be fully recessed into the workpiece surface,
making it suitable for assemblies requiring a smooth finish, such as furniture and mechanical enclosures.
Countersunk Head Socket Cap Screw
4. Eye Bolt
Features a ring-shaped head designed for lifting, suspending, or towing.
Features a ring-shaped head designed for lifting, suspending, or towing.
Commonly found in hoisting equipment, stage rigging, marine applications, and similar fields.
Eye Bolts
Summary
1. Categorized by Head Style and Drive Type: The most common hex head bolts offer versatility,
1. Categorized by Head Style and Drive Type: The most common hex head bolts offer versatility,
while various socket head cap screws are used for flush appearances or precision assembly.
2. Categorized by Thread Design: Fully threaded rods provide flexibility;
half-threaded bolts enhance shear resistance;
coarse and fine threads prioritize quick assembly and high preload, respectively.
3. Categorized by Special Function and Structure: For example, carriage bolts are specifically designed to prevent rotation, commonly used in wooden structures;
double-ended studs facilitate frequent disassembly;
T-head bolts are for slot fixing;
flange bolts integrate a bearing surface;
and eye bolts are specialized for lifting and suspension.
These diverse designs reflect comprehensive engineering considerations for connection strength,
assembly efficiency, aesthetic requirements, and special functions (such as locking, suspension, and alignment).
They are indispensable fundamental components in mechanical design and assembly.
Qishine is ideal choice for EPC companies and project contractors.
Website: www.qishine.com
Email: qishine@qishine.com
Tel: 0592-5225595
Email: qishine@qishine.com
Tel: 0592-5225595
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