TOP SCREW METAL CORP.

A thread insert also known as a threaded bushing which is a fastener element that is inserted into an object to add a threaded hole. They may be used to repair a stripped threaded hole, provide a durable threaded hole in a soft material and place a thread on a material too thin to accept it, mold or cast threads into a workpiece thereby eliminating a machining operation, or simplify changeover from unified to metric threads or vice versa.

Self Tapping Inserts (also known as self threaded inserts or Ensats) are cylindrical metal bushings with internal and external threads and are specially designed to cut their own threads as they are being driven into a drilled hole. They provide permanent wear-resistant threads in a wide range of materials, from tough to tap, high strength steels to brittle plastics.

The thread cutting action is performed by the cutting slots on the insert. By tapping its own thread, the self tapping insert eliminates the need for pre-tapped holes.

(Reference by Wikipedia)

Feature of  Self-Tapping Threaded Insert: 

• It is easy to installed
• it is designed to replace spring coil.
• It provides strong threads for weak material like aluminum or plactic.
• It is able to install for vibrating environment.