1These self tapping thread inserts can be installed directly and do not need you to tap a thread first 2They are used in low strength materials such as aluminum, magnesium, can avoid thread damage and get a good connection performance, to enhance connection strength and improve connection condition 3Used for parts that requires frequent removing, it can greatly improve service life and wear-resistance of screw thread 4It can prevent screw from getting loose,especially used for products requiring high coefficient of insurance 5Easy 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 lossDescription: _x000D_These steel thread inserts can effectively improve screw connection, greatly improving the reliability. Used in all kinds of low strength materials, thread inserts can largely improve the wear resistance performance of screw connection, and avoid thread damage. _x000D__x000D__x000D_Features: _x000D_These self tapping thread inserts can be installed directly and do not need you to tap a thread first._x000D__x000D_They are used in low strength materials such as aluminum, magnesium, can avoid thread damage and get a good connection performance, to enhance connection strength and improve connection condition._x000D__x000D_Used for parts that requires frequent removing, it can greatly improve service life and wear-resistance of screw thread. _x000D_It can prevent screw from getting loose,especially used for products requiring high coefficient of insurance. _x000D_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. _x000D__x000D_Specifications: _x000D_Material: Stainless steel SUS303 _x000D_Inner Thread Size: M3(diameter) x 0.5(pitch) _x000D_Length: 6mm _x000D_Outer Thread Size: M5(diameter) x 0.5(pitch) _x000D_Drilling Diameter: 4.5~4.6mm(plastic); 4.6~4.7mm(aluminum alloy); 4.7~4.8mm(cast iron) _x000D_Min. Drilling Depth: 8mm_x000D__x000D_Quantity: 20pcs _x000D_Weight: 9g(approx.) _x000D__x000D__x000D_Package Includes: _x000D_20 x Threaded Inserts