| Material: | Stainless Steel |
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| Type: | Hexagon Head |
| Groove: | Word |
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Core expansion screw is a special fastener used to fix materials. Its main feature is to drill holes in the material and insert screws, and then tighten or tap the screws with tools such as wrenches or hammers to expand the core part of the screw, thereby achieving a fixed effect.
Product Introduction
Principle and Structure
The working principle of the core expansion screw is to utilize its internal expansion mechanism. When a screw is inserted into a pre drilled hole and tightened or tapped with a tool, the head of the screw will push the outer metal sleeve outward, causing it to expand and firmly fix the material. This design provides the core expansion screw with high friction grip and shear resistance, ensuring firm fixation.
Material and specifications
Core expansion screws are usually made of carbon steel, stainless steel (such as 304, 316), alloy steel and other materials to meet the needs of different application scenarios. Common specifications include M6 to M24, with lengths ranging from tens of millimeters to hundreds of millimeters. The specific selection can be determined according to actual application needs.
application area
Due to its convenient installation and good fixing effect, the core expansion screw is widely used in the installation of mechanical equipment, automobile manufacturing, construction and other fields. For example, it is widely used in lifting machines, air duct supports and hangers, door and window installations, and other fields.
usage method
Drilling: First, it is necessary to drill a hole on the material that matches the diameter of the screw.
Insert screw: Insert the expansion screw of the core into the drilled hole.
Fixed: Use a wrench or hammer to tighten or tap the screw, causing the core of the screw to expand, thus completing the fixation.
matters needing attention
The punching size must match the screw diameter to ensure expansion effect and fixing strength.
During installation, excessive force should be avoided to prevent damage to screws or materials. In short, the core expansion screw has been widely used in various industrial and construction fields due to its efficient and reliable fixing performance. Understanding its working principle and correct usage methods can help users better leverage its advantages, improve work efficiency and safety.
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