1/4-20 UNC Thread Repair Insert Kit, Wire Screw Sleeve Set for Damaged Threads, Stainless Steel Helical Inserts with Installation Tools for Auto Parts and Machinery

Condition: 100% Brand NewItem Type: Thread Repair KitsMaterial: Steel + Stainless SteelThread Size: 1/4-20uncPackage List：1 x Twisted Drill1 x Handle Remove Tool1 x Install Special Tools1 x Thread Tap1 x Remove Tool4 x 1/4-20 x 1D Screw Sleeve4 x 1/4-20 x 1.5D Screw Sleeve4 x 1/4-20 x 2D Screw Sleeve

• Precision Thread Restoration: This 1/4-20 UNC thread repair insert kit uses high-strength stainless steel helical inserts to restore stripped or damaged internal threads in soft metals like aluminum, creating threads stronger than the original. Perfect for critical applications where bolt security is essential.
• Complete Repair Toolkit Included: The wire screw sleeve set comes with everything needed for professional-grade repairs—twist drill, tap, installation tool, handle removal tool, and multiple sleeve lengths (1D, 1.5D, 2D)—ensuring you can fix worn screw holes quickly without extra purchases.
• Wide Industrial and Automotive Use: Ideal for repairing damaged threads in auto parts, radiators, high-voltage switchgear, air separation equipment, and microwave communication systems, this threaded insert kit suits mechanics, engineers, and DIYers working on machinery requiring reliable fastening.
• Durable - Material: Made from premium stainless steel and hardened steel, each screw sleeve offers high wear resistance, environmental safety, and long-lasting performance even under vibration or thermal stress, preventing bolt loosening in demanding conditions.
• Easy Installation and Reusability: Simply drill out the damaged hole, tap new threads, and install the wire screw sleeve using the included tools—the repaired hole accepts standard 1/4-20 UNC bolts immediately. The kit’s design allows maintenance without replacing entire components.