Purpose and primary functions Thread inserts convert between metric and inch threaded holes, providing a fast and convenient way to adapt existing parts without remachining. When you fit the wire screw set in the screw hole of the workpiece made of aluminum alloy or other materials, the insert forms a strength, wear‑resistant, ‑accuracy standard female thread. Use inserts to damaged or incorrectly tapped female threads in a cost‑effective way instead of replacing the whole part. Key benefits (why you need them) Conversion: change a threaded hole from metric to inch (or vice versa) quickly and reliably. Strength and durability: the diamond‑shaped cross‑section ‑strength steel wire creates a durable, wear‑resistant female thread suitable for repeated assembly and disassembly. Accuracy: restores or establishes precise thread dimensions for reliable fastener engagement. Cost savings: repairs damaged threads without expensive part replacement or full remachining. Compatibility and materials Designed for use in aluminum alloy and a variety of other base materials where the original material may be too soft for direct threading. Constructed from ‑strength, ‑accuracy diamond‑shaped cross‑section steel wire. These products are also referred to as wire thread inserts, threaded sheaths, stainless steel threaded sleeves, or wire sleeves. Performance highlights Produces a standardized female thread with improved load distribution and wear resistance. Maintains thread accuracy under repeated use and in applications requiring higher strength than the base material can provide. Suitable for restoring stripped or damaged threads to near‑original performance. Typical applications / use scenarios Automotive : Restore stripped bolt holes in aluminum engine components or transmission housings without replacing the part. Industrial machinery and equipment: Reinforce or mounting holes in soft metal housings to withstand higher torque and cyclic loading. Retrofit and maintenance: Convert existing metricthreaded components to inch fasteners (or vice versa) to accommodate replacement hardware or international parts. Practical notes Installation: the insert forms the female thread when you fit the wire screw set in the screw hole of the workpiece; follow standard fitting practices for wire thread inserts. Ideal for situations where strength, accuracy, and wear resistance are required in softer base materials. Alternate names for ordering or reference Wire thread inserts, threaded sheaths, stainless steel threaded sleeves, wire sleeves.