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What are the common types of fastener?

What are the common types of fastener?

Introduction:

Fasteners play a crucial role in our daily work and life, securing and connecting various materials for diverse applications. 

This article provides an in-depth look at the types of fasteners and their specific functions to help you better understand 

their differences and applications.

What are the common types of fastener? 1

Screws:

Screws come in various types, each tailored for specific purposes:

Machine screws: Distinguished by head shapes (cylindrical, pan, countersunk, semi-sunk) and groove designs, 

ideal for precise fastening in various applications.

Wood screws: Specifically designed for wood, featuring head types like round, countersunk, and semi-sunk 

with slotted or cross grooved heads.

Self-tapping screws: Unique for forming internal threads without the need for pre-tapping.

Set screws: Used for fixing the relative position of parts, with options like slotted, hexagonal, and square heads.

Hexagon socket head screws: Suitable for tight spaces or when embedding the screw head is necessary.

Special-purpose screws: Including set screws, non-protruding screws, and eye screws to cater to specific requirements.

What are the common types of fastener? 2

Nuts:

Nuts come in diverse variants, such as hex nuts, square nuts, slotted nuts, lock nuts, welded nuts, 

and special-purpose nuts like wing nuts, cap nuts, knurled nuts, non-standard nuts, and embedded nuts.

What are the common types of fastener? 3

Gaskets and Retaining Rings:

Gaskets and retaining rings serve essential roles in fastener applications:

Anti-loosening washer: Prevents loosening and reduces stress between bolts, screws, nuts, and the workpiece's supporting surface.

Lock washers: Available as flat washers, spring washers, stop washers, and inclined washers.

Non-retraction washers: Including internal tooth lock washers, external tooth lock washers, single-ear stop washers,

double-ear stop washers, and round nut stop washers.

Retaining rings: Used for positioning, locking, or stopping parts on shafts or in holes, with elastic circlips,

steel wire circlips, locking circlips, and shaft end circlips among the available options.

What are the common types of fastener? 4

Pins:

Pins serve multiple purposes, such as positioning, connecting, locking, and acting as overload shearing elements in safety devices:

Cylindrical pins: Commonly used for fixing parts on shafts, transmitting power, or as positioning components.

Tapered pin: Convenient for installation and self-locking, often used in places requiring frequent disassembly.

Cotter pin: An anti-loosening device for connecting parts.

What are the common types of fastener? 5

Rivets:

Rivets play a crucial role in connection and fastening:

Hot-forged rivets: Larger specifications, primarily used in locomotives, ships, and boilers, requiring hot forging for head shaping.

Cold-forged rivets: Used in various applications, providing reliable connections.

Hollow rivets: Suitable for low-shear force situations, often connecting non-metallic parts like plastics, leather, wood, and canvas.

What are the common types of fastener? 6

Turning Parts:

Turning is a precision-oriented and efficient process used to achieve various processing effects, including intricate shapes and contours 

like spherical surfaces and helical surfaces. Widely used in machinery manufacturing, aerospace, automobile manufacturing, 

electronic appliances, medical equipment, and more.

Conclusion:

Understanding the different types of fasteners and their applications is essential for selecting the most suitable option for specific needs. 

Whether you're fastening materials, connecting components, or securing parts in various industries, this knowledge 

will aid you in making informed decisions for optimal results.

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Our defect rate standard is 0 PPM.

Our production range includes CNC processing center, automatic lathing, automatic milling, wire cutting, powder metallurgy processing and assembly of metal parts with plastic parts.

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