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What is a threaded insert? What is it used for?
Threaded inserts are coiled threaded bushings that reinforce internal thread such as aluminum or resin. It is sometimes referred to as an insert helisert. In addition to the usual thread size, the drawing instructions are represented by the abbreviation INS. In addition, there are different types of inserts in length. Please use the one according to the thread length in the drawing instructions. In addition, it is used to repair damaged internal thread .
What is an insert?
It is a coiled threaded bushing that reinforces internal thread such as aluminum and resin. In the drawing instructions, it is denoted by the symbol M6×1 INS
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Standard Inserts (A) Tang |
Locking Inserts (A) Tang |
Tangless inserts * Type without tongue. No need for tongue folding. |
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(B) Bolt (C) Insert (Screw Insert) (D) Insert screw |
What are inserts used for?
・Reinforcement of screws: It has the role of reinforcing the screw part when the screw is repeatedly attached and detached. It is effective for screws such as aluminum and resin.
・ Loosening prevention: There is a lock type that can suppress the loosening of the screw due to vibration.
・Modification of thread processing: When the thread is damaged, it can be repaired to the original size screw again.
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This part is polygonal, and loosening is suppressed by tightening the bolt. |
When repairing screws, drill the insert screws for the thread size you want to fix with a Pilot hole diameter drill. The hole is machined as a Pilot hole with an insert Tap to machine the insert thread. The screw is repaired by inserting a screw insert into the insert screw.
• List of Pilot hole diameters of Tap for insert screws
・ What do I need to use threaded inserts? How should it be processed?
・ What are the different types of threaded inserts?
・ What is the difference between inserts and enzats?