Features:
1. These self tapping thread inserts can be installed directly and do not need you to tap a thread first.
2. They are used in low strength materials such as aluminum, can avoid thread damage and get a good connection performance, to enhance connection strength and improve connection condition.
3. Used for parts that requires frequent removing, it can greatly improve service life and wear-resistance of screw thread.
4. It can prevent screw from getting loose, especially used for products requiring high coefficient of insurance.
5. Easy to maintenance, install a thread insert into a damage screw hole, then the screw hole can be used as normal, in order to avoid workpiece loss.

Specifications:
Material: Metal
Inner Thread Size: M4(diameter) x 0.7(pitch) x 8mm(length)
Outer Thread Size: M6.5(diameter) x 0.75(pitch)
Drilling Diameter: 5.8~5.9mm(plastic); 6.0~6.1mm(aluminum alloy); 6.1~6.2mm(cast iron)
Min. Drilling Depth: 10mm
Quantity: 20pcs
Weight: 20g(approx.)

Package Includes:
20 x Threaded Inserts