Genuine HELICOIL® Thread Inserts from Thread Master
At Thread Master, we supply genuine HELICOIL® thread inserts, the original and industry-trusted solution for repairing, reinforcing and protecting threaded holes. Developed through decades of engineering innovation, HELICOIL® products are trusted by professionals across the automotive, aerospace, manufacturing, mining and engineering industries.
Our range includes Free Running and Screwlock inserts, available in both tanged and tangless designs, along with a complete selection of installation tools and accessories. Manufactured from premium stainless steel and available with specialised coatings, HELICOIL® inserts deliver exceptional strength, durability and long-lasting performance in even the most demanding applications.
Engineered for Permanent Thread Repair
HELICOIL® thread inserts are precision-engineered coils manufactured from high-strength, diamond-shaped 304 stainless steel wire. Once installed into a correctly prepared STI tapped hole, the insert creates a permanent, high-strength 60° internal thread that accepts standard bolts and fasteners.
Before installation, the insert is slightly larger than the prepared thread. During installation, the insertion tool compresses the insert, allowing it to thread smoothly into position. Once installed, the insert expands with a spring-like action, securely locking itself into the parent material without the need for adhesives, staking or mechanical locking.
The result is a stronger, more durable thread with improved load distribution, increased resistance to wear and corrosion, and a significantly longer service life.
Quality You Can Trust
Thread Master supplies only genuine HELICOIL® products manufactured to rigorous international quality standards. Every insert is engineered for precision, consistency and reliability, ensuring dependable performance in critical applications where thread integrity cannot be compromised.
When you choose Thread Master, you benefit from proven thread repair solutions backed by decades of engineering excellence, giving you complete confidence in every installation.