Lag Screw
| Type: |
Lag Screw |
| Definition: |
Lag screws are primarily designed to be screwed into wood. Functionally, they are larger and stronger wood screws with hex heads. Lag screws are some of the toughest types of screws out there. |
Description:
|
Also called lag bolts, lag screws are generally used to connect heavy lumber and other materials that bear an intense load. The name lag screw derives from their original use in securing barrel staves, also known as lags. |
| Application: |
A lag screw is used to compress fracture fragments. It is threaded into the opposite cortex, and slides through a hole in the near cortex. Tightening the screw presses the screw head against the near cortex, compressing the fracture fragments. Optimally, a lag screw should be perpendicular to the fracture plane. |
| Others: |
A lag screw requires a hole drilled at the same diameter as the shaft of the screw, a gimlet point helps pull the screw into the hole and tap its thread.
Feel Free to contact us if you have any questions. |
| Feel Free to contact us if you have any questions. |
Almost all of Hilow Hardware's screw orders are customized order. That means Hilow Hardware must manufacture in accordance with client's specifications. In order to maintain a High-efficient manufacturing, specific technical data must be validated before place a formal order. A screw sample is not always required, but a screw drawing will be always necessary. Futhermore, the drawing must include the following significant information:
1. Diameter
Major Diameter-Major Diameter is always required.
Minor Diameter-Minor Diameter is usually provided if required.
2. Thread Angle
Thread angle is one of the most important information in the drawing, especially for special screw, which directly determined the thread profile. Symmetrical thread profile has only one thread angle, unsymmetrical thread profile has two or more thread angles.
3. Thread Length
Thread Length is the length of threading part, including point length, different to screw length.
4. Screw Head
Screw head includes screw head shape and screw drive type.
5. Screw Point
The screw point provides a transition between the threads and the point, as well as helping with proper alignment. Different screw point style has different function, determines the application of the screw.
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