[VERSATILE THREAD CONVERSION] The wire thread insert allows seamless switching between metric and inch threaded holes, providing a quick and efficient solution for diverse threading needs. Its universal compatibility makes it an essential tool for workshops and manufacturing facilities.
[DURABLE THREAD REPAIR] Designed to restore damaged female threads with precision, these stainless steel inserts form a wear- and high-accuracy standard female thread. for fixing threading errors or extending the life of worn-out screw holes in metal workpieces.
[HIGH STRENGTH MATERIAL] Crafted from premium SUS304 stainless steel, these thread repair inserts offer exceptional strength and resistance to deformation. Their robust construction ensures reliable performance even in demanding industrial applications.
[INDUSTRY STANDARD COMPLIANCE] These wire thread inserts meet US unit specifications (4-40 model) with precise dimensions (2.845mm diameter, 0.64mm pitch). The diamond-shaped cross-section design guarantees optimal thread engagement and long-lasting performance.
[WIDE INDUSTRIAL APPLICATION] Ideal for use in aviation, automotive, lighting fixtures, , and mechanical equipment. These inserts significantly enhance thread strength in low-strength materials like aluminum, zinc alloy, copper, and plastics, making them indispensable for professional technicians.

Spec:
Item Type: Wire Thread Insert
Material: SUS304
Standard: US Units
Model: 4-40
Diameter: Approx. 2.845mm / 0.11in
Pitch: Approx. 0.64mm / 0.03in
Outside Diameter Before Installation: Approx. 3.6-4.0mm / 0.14-0.16in
Drill Bit Diameter: Approx. 3.0mm / 0.12in
Thread Protective Socket Model Specification Description: For Example: M3 x 0.5 x 1.5D means that after the screw set is completed, the female thread is M3, the pitch is 0.5, and the length is 1.5D (length refers to 1.5 times the diameter, that is, 1.5 x 3=4.5mm) , the length here refers to the length