Wire Thread Insert Technical Parameters and Selection Guide
Published2026-08-09
Comprehensive analysis of wire thread insert specifications, material grades, installation dimensions, and selection methods for aerospace fastener design.
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1. Overview
A Wire Thread Insert is a precision-formed helical coil made from high-strength stainless steel wire, available in both Tanged and Tangless configurations. When installed, it creates a high-precision internal thread that significantly enhances the load-bearing capacity and fatigue resistance of the parent material.
2. Core Technical Parameters
2.1 Material Grades
| Material | Tensile Strength (MPa) | Hardness (HRC) | Temp Range | Typical Application |
|---|---|---|---|---|
| 304 SS | ≥900 | 43-50 | -60~300°C | General industrial |
| 316 SS | ≥900 | 43-50 | -60~300°C | Marine, chemical |
| Nitronic60 | ≥1000 | 45-52 | -60~400°C | High-temp vibration |
| Inconel X-750 | ≥1200 | 48-55 | -60~600°C | Jet engines, turbines |
3. Selection Guide
Choose insert length based on load requirements: 1D for light loads, 1.5D for standard, 2D for heavy structural, and 3D for frequent disassembly applications.
4. Quality Standards
All products comply with NASM21209, AS4395, AS4527, and GB/T 24425 standards.