M3 Thread Inserts 0.5mm Pitch 2D Length 304 Stainless Steel Helicoil Wire Inner Thread Inserts Metric Coiled Helical Screws Aircraft Grade Anti Loosening Design 80 Pieces

M3 Wire Thread Inserts 0.5mm Pitch, 80Pcs SS304
✔️ M3 pitch 0.5mm, 2D length, Ø4mm OD, aircraft-grade SS304

These M3 wire thread inserts (Helicoil-style) are crafted from 304 stainless steel to reinforce threaded holes in softer materials. Designed for aerospace, automotive, and general machinery use, they help resist vibration and loosening for a reliable fastener joint.

✅ Material: 304 stainless steel
✅ Fit drilling diameter: 3.0 mm
✅ Pitch: 0.5 mm
✅ Overall length: 2D
✅ Outer diameter: 4.0 mm
✅ Package: 80 pieces

💡 What is a thread insert used for in metal assemblies? - Strengthens joints by distributing load and absorbing vibrations - Repairs stripped or damaged threads in softer base materials - Improves fastener reliability in critical assemblies - Handy for aerospace, automotive, and machinery projects