Features: Provide strong internal thread which resist heat and corrosion when installed. Once fitted their position is held by the radial pressure between the coils and the flanks of the drilled hole. Manufactured from accuracy stainless steel wire for strength, wearproof and durability. Increase connection strength and fatigue resistance due to the elasticity of wire thread inserts. Great choice for restoring damaged threads in steel, iron, aluminum and anywhere metal threads become stripped, crossed or damaged. Specifications: Model: M5 Material: Stainless steel Weight: Approx. 92g Package Includes: 30 x M5*0.8*2d Wire Thread Inserts 1 x Twist Drill Bits 1 x Wrench 1 x Thread Taps 1 x Breaking Pin Tool Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List 1Provide strong internal thread which resist heat and corrosion when installed. 2Once fitted their position is held by the radial pressure between the coils and the flanks of the drilled hole. 3Manufactured from accuracy stainless steel wire for strength, wearproof and durability. 4Increase connection strength and fatigue resistance due to the elasticity of wire thread inserts. 5Great choice for restoring damaged threads in steel, iron, aluminum and anywhere metal threads become stripped, crossed or damaged.