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. Features: These thread inserts are designed with screw latches for strong fastening. They are used in low strength materials, can avoid thread damage and get a good connection performance, to enhance connection strength and improve connection. Used for parts that requires frequent removing, it can greatly improve service life and wear-resistance of screw thread. It can prevent screw from getting loose, especially used for products requiring high coefficient of insurance. 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. Specification: Material: Stainless steel Type(Optional)Inner ThreadOuter ThreadLength(mm)Quantity 1M4*0.7M8*1.2584pcs 2M5*0.8M10*1.25104pcs 3M6*1.0M12*1.25124pcs 4M8*1.25M14*1.5142pcs 5M10*1.5M16*1.5162pcs 6M12*1.75M18*1.5182pcs 7M16*2M22*1.5222pcs Weight: 8g~52g / 0.3oz~1.8oz (approx.) Package list: 1 set * Threaded Inserts Package List 1These thread inserts are designed with screw latches for strong fastening. 2They are used in low strength materials, can avoid thread damage and get a good connection performance, to enhance connection strength and improve connection. 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 loss.