Professional Thread Repair Solutions
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Technical advice to select the right solution
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Everything needed for professional repairs
Choose Your Thread Repair Solution
Each system offers unique advantages for different applications. Select the solution that best matches your repair requirements.
Time-Sert
Thin-walled solid steel inserts that provide permanent thread repair stronger than the original thread. Ideal for aluminum, spark plugs, head bolts.
Key Features:
- Thin-walled design
- Roll-forming installation
- Permanent repair
- Spark plug & head bolt kits
Big-Sert
Oversize thread repair system for severely damaged holes. Perfect for second-stage repairs when Helicoil or Time-Sert has failed.
Key Features:
- Larger outer diameter
- Second-stage repair
- Spark plug specialist
- Solid steel construction
Keenserts
Key-locking threaded inserts requiring no special tools. Uses standard taps and drills for cost-effective installation.
Key Features:
- No special tools needed
- Key-locking design
- Multiple series available
- OEM applications
Loc-in-Sert
Self-locking solid bushing with Loctite bonding. Replaceable thread bushings ideal for jigs, dies, and production equipment.
Key Features:
- Replaceable design
- Loctite bonding
- Standard taps
- Production equipment
Nucoil Inserts
Premium 18-8 stainless steel wire inserts compatible with Helicoil, Recoil, and PowerCoil. Available in 16 thread forms.
Key Features:
- Helicoil compatible
- 16 thread forms
- 2mm to 65mm range
- Stainless steel
Need Help Choosing?
Thread Repair Selection Guide
Choose Time-Sert when:
- • First-time thread repair in good condition holes
- • Repairing spark plugs or head bolts
- • Working with aluminum or soft materials
- • You need the strongest permanent repair
Choose Big-Sert when:
- • Previous Helicoil or Time-Sert repair has failed
- • Hole is severely damaged or oversized
- • Second-stage repair is required
- • Spark plug threads are stripped beyond standard repair
Choose Keenserts when:
- • No special tools are available
- • OEM or production applications
- • Standard taps and drills must be used
- • High pull-out strength is required
Choose Loc-in-Sert when:
- • Threads need to be replaceable when worn
- • Working with jigs, dies, or production equipment
- • Thread bushing applications
- • Second-stage repairs in production environments
Choose Nucoil when:
- • You already have Helicoil tooling
- • Need rare or special thread forms
- • Budget-conscious thread repair
- • Working with BSF, BSP, NPT, or special sizes
Still not sure?
Our technical team can help you select the right solution for your specific application.
Contact Our Experts →