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Heli-Coil Thread Inserts

4.84 out of 5 stars 108 Customer Reviews

Heli-Coil has the most effective and universally accepted method of thread repair. Heli-Coil inserts work in any part or material--aluminum, magnesium, cast iron, bronze, etc. Damaged threads can be restored to better-than-new condition in spark plug ports, carburetor fuel inlets, transmission housings, oil drain plugs, exhaust and intake manifolds, head bolt holes, brake calipers, and more. They are available in many sizes.

Results 1 - 15 of 15

Thread Repair Inserts, 3/8 in.-16 Thread, 0.562 in. Length, Set of 12

Part Number: HLL-R1185-6

5.0 out of 5 stars ( 1 )

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R-PACK 7/16-14 1-1/2 dia INSERT

Part Number: HLL-R1185-7

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Thread Repair Inserts, 5/16 in.-18 Thread, 0.469 in. Length, Set of 12

Part Number: HLL-R1185-5

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Thread Inserts, Heli-Coil, 6mm x 1.00 Thread, Set of 12

Part Number: HLL-R1084-6

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Thread Inserts, Heli-Coil, 12-24 in. Thread, Set of 12

Part Number: HLL-R1185-1

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Thread Repair Inserts, 14 x 1.25mm Thread, 0.500 in. Long, Set of 6

Part Number: HLL-R513-13

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Thread Insert, 8 x 1.25mm Thread, 12mm Length, 12 Inserts, Set of 12

Part Number: HLL-R1084-8

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Estimated Ship Date: Oct 6, 2025 if ordered today

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Estimated Ship Date: Oct 6, 2025 if ordered today

Thread Inserts, Heli-Coil, 1/4-20 in. Thread, Set of 12

Part Number: HLL-R1185-4

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Estimated Ship Date: Oct 7, 2025 if ordered today

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Estimated Ship Date: Oct 7, 2025 if ordered today

Thread Inserts, Heli-Coil, 1-8 in. Thread, Each

Part Number: HLL-K1185-16

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Estimated Ship Date: Oct 6, 2025 if ordered today

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Estimated Ship Date: Oct 6, 2025 if ordered today

Thread Repair, Helicoil, 10mm x 1.25, 12 Inserts, Set of 12

Part Number: HLL-R4649-10

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Estimated Ship Date: Oct 6, 2025 if ordered today

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Estimated Ship Date: Oct 6, 2025 if ordered today

Thread Repair, Helicoil, 1/2 in.-20 RH, 3/8 in. Deep, Set of 6

Part Number: HLL-R1191-8-2

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Estimated Ship Date: Oct 6, 2025 if ordered today

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Thread Inserts, Heli-Coil, 12 x 1.25mm Thread, Set of 6

Part Number: HLL-R4649-12

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Estimated Ship Date: Oct 6, 2025 if ordered today

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Estimated Ship Date: Oct 6, 2025 if ordered today

Thread Insert, 11 x 1.5mm Thread, 16.5mm Length, 6 Inserts, Set of 6

Part Number: HLL-R1084-11

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Estimated Ship Date: Oct 6, 2025 if ordered today

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Thread Repair, Helicoil, 11mm x 1.50, 6 Inserts, Set of 6

Part Number: HLL-R1084-11-30

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Estimated Ship Date: Oct 6, 2025 if ordered today

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Thread Repair, Helicoil, 7mm x 1.00, 12 Inserts, Set of 12

Part Number: HLL-R1084-7

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Estimated Ship Date: Oct 6, 2025 if ordered today

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Estimated Ship Date: Oct 6, 2025 if ordered today

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