Metric Helicoil Inserts

* Above image is not to scale and for measurement explanation only.

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Find a Helicoil

Thread Size & Pitch

Select one

M2 x 0.4
M2.2 x 0.45
M2.5 x 0.45
M3 x 0.5
M3.5 x 0.6
M4 x 0.7
M5 x 0.8
M6 x 1
M7 x 1
M8 x 1
M8 x 1.25
M10 x 1
M10 x 1.25
M10 x 1.5
M12 x 1.25
M12 x 1.5
M12 x 1.75
M14 x 1.5
M14 x 2
M16 x 1.5
M16 x 2
M18 x 1.5
M18 x 2
M18 x 2.5
M20 x 1.5
M20 x 2
M20 x 2.5
M22 x 1.5
M22 x 2
M22 x 2.5
M24 x 2
M24 x 3
M27 x 2
M27 x 3
M30 x 2
M30 x 3.5
M33 x 2
M33 x 3.5
M36 x 2
M36 x 3
M36 x 4
M39 x 2
M39 x 3
M39 x 4

Length

Select a thread size first

OR find the right helicoil for your project using our
tabulated metric helicoil product finder.

Select a thread size and length to view the helicoil.

Metric Helicoil Inserts – Precision Thread Repair for Engineering Applications

Strong, Lightweight & Reliable Threading for Metric-Sized Holes

Looking to restore or reinforce stripped threads in metric tapped holes? Our Metric Helicoil Inserts are the industry-standard solution trusted by engineers, mechanics, and manufacturers across aerospace, automotive, defence, and industrial sectors.

Made from high-precision, diamond-profile wire, Helicoil inserts form durable 60° internal threads with a mirror-like finish of 8–16 micro inches. Once installed, they offer superior wear resistance, vibration protection, and permanent thread strength — even in softer metals like aluminium and magnesium.

Ideal for original equipment manufacturing or thread repair, these metric Helicoil inserts are lightweight, space-saving, and easy to install using standard tools.

Why Choose Rivetwise Metric Helicoil Inserts?

🧩 Available in a full range of metric sizes (M2 to M20+)
🛠️ Delivers strong, wear-resistant threads in soft or damaged materials
🚗 Trusted in aerospace, automotive, and heavy engineering sectors
🔩 Prevents thread stripping, galling, and vibration loosening
✅ Ideal for maintenance, repair, or OEM manufacturing

Fasten with confidence.
👉 Browse our range of metric Helicoil inserts now or get in touch for expert support and trade pricing.

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