20Pcs Wire Thread Insert M12 x 1.5, 304 Stainless Steel Sheath Helicoil Type Screw Repair Sleeve Assortment Kit, Bushing (2.5D),other fasteners

Wire thread inserts are also called threaded sheaths, stainless steel threaded sleeves, wire sleeves, and braces. They are a new type of internal threaded fasteners made of high-strength, high-accuracy diamond-shaped cross-section steel wires; Application to low-strength engineering materials such as aluminum alloy, zinc alloy, copper, plastic, etc., can significantly improve thread strength and abrasion resistance. The thread size is standard, the thread is clear, and it will be more accurate for thread sliding tooth restoration. The repair nut is an industrial fastening part, which is mostly used with screws or bolts.When thread processing error occurs or female threaded hole is damaged, the wire thread insert is a good maintenance tool. 304 stainless steel has good corrosion resistance and is not easy to break when repairing threaded holes. Commonly used in hydraulic machinery, welding equipment, auto parts, power machinery and furniture, etc.