(25Pcs M10x1 Universal Stainless Steel Helicoil Thread Insert Repair Set. Item included: 25 x Helicoil Thread Inserts. Material: 304 Stainless Steel. 6) The hardness of the wire thread insert is higher than that of the screw, so it is less abraded in the process of connecting and disassembling with the screw, and can be used repeatedly.
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