Helical Thread Insert Kits

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Helical thread insert kits are used to install threaded fasteners in metals, polymers, wood & composites by repairing stripped / damaged tapped holes or creating threaded holes. They are ideal for... Read More

CHRISLYNN -

Precision Professional Kits, UNC

CHRISLYNN 82144HA
StyleModelThread SizeDrill SizePrice (inc. GST)
A82144H1 1/2-61 17/32"A$ 1291.36
A82140H1 1/4-71 9/32"A$ 674.84
A82138H1 1/8-71 5/32"A$ 592.46
A82142H1 3/8-61 13/32"A$ 877.79
A82135H1-81 1/32"A$ 464.80
A82124H1/2-1317/32"A$ 171.19
A82116H1/4-2017/64"A$ 122.25
A82100H2-563/32"A$ 146.10
A82131H3/4-1025/32"A$ 252.35
A82120H3/8-1625/64"A$ 137.12
A82104H4-40#31A$ 131.07
A82106H5-40#29A$ 138.89
A82129H5/8-1121/32"A$ 203.07
A82118H5/16-1821/64"A$ 131.72
A82108H6-32#25A$ 130.11
A82133H7/8-929/32"A$ 354.68
A82122H7/16-1429/64"A$ 157.12
A82110H8-3211/64"A$ 122.94
A82127H9/16-1219/32"A$ 208.26
A82112H10-2413/64"A$ 126.66
A82114H12-2415/64"A$ 138.08
CHRISLYNN -

Precision Complete Industrial Kits, UNC

CHRISLYNN 82144A
StyleModelThread SizeDrill SizePrice (inc. GST)
A821441 1/2-61 17/32"A$ 798.40
A821401 1/4-71 9/32"A$ 556.64
A821381 1/8-71 5/32"A$ 475.19
A821421 3/8-61 13/32"A$ 787.20
A821351-81 1/32"A$ 355.20
A821241/2-1317/32"A$ 116.49
A821161/4-2017/64"A$ 85.60
A821002-563/32"A$ 104.39
A821023-48#36A$ 115.19
A821313/4-1025/32"A$ 206.40
A821203/8-1625/64"A$ 98.39
A821044-40#31A$ 100.70
A821065-40#29A$ 108.81
A821295/8-1121/32"A$ 171.53
A821185/16-1821/64"A$ 89.61
A821086-32#25A$ 96.80
A821337/8-929/32"A$ 284.79
A821227/16-1429/64"A$ 115.19
A821108-3211/64"A$ 91.04
A821279/16-1219/32"A$ 154.88
A8211210-2413/64"A$ 91.20
A8211412-2415/64"A$ 107.19
CHRISLYNN -

Precision Professional Kits, UNF

CHRISLYNN 82145HA
StyleModelThread SizeDrill SizePrice (inc. GST)
A82145H1 1/2-121 17/32"A$ 1291.36
A82141H1 1/4-121 9/32"A$ 674.84
A82139H1 1/8-121 5/32"A$ 592.46
A82143H1 3/8-121 13/32"A$ 877.79
A82136H1-121 1/64"A$ 518.78
A82137H1-141 1/64"A$ 518.78
A82126H1/2-2033/64"A$ 184.63
A82117H1/4-2817/64"A$ 122.25
A82132H3/4-1649/64"A$ 255.24
A82121H3/8-2425/64"A$ 137.12
A82130H5/8-1841/64"A$ 229.77
A82119H5/16-2421/64"A$ 131.72
A82134H7/8-1457/64"A$ 394.89
A82123H7/16-2029/64"A$ 157.12
A82128H9/16-1837/64"A$ 212.41
A82113H10-3213/64"A$ 126.66
CHRISLYNN -

Precision Complete Industrial Kits, UNF

CHRISLYNN 82145A
StyleModelThread SizeDrill SizePrice (inc. GST)
A821451 1/2-121 17/32"A$ 798.40
A821411 1/4-121 9/32"A$ 556.64
A821391 1/8-121 5/32"A$ 500.80
A821431 3/8-121 13/32"A$ 787.20
A821361-121 1/64"A$ 414.40
A821371-141 1/64"A$ 414.40
A821261/2-2033/64"A$ 144.00
A821171/4-2817/64"A$ 92.01
A821033-56#37A$ 115.19
A821323/4-1649/64"A$ 211.20
A821213/8-2425/64"A$ 97.92
A821054-48#31A$ 115.19
A821305/8-1841/64"A$ 198.41
A821195/16-2421/64"A$ 92.79
A821096-40#25A$ 115.19
A821347/8-1457/64"A$ 330.40
A821237/16-2029/64"A$ 115.19
A821118-36#17A$ 99.33
A821289/16-1837/64"A$ 171.03
A8211310-3213/64"A$ 91.20
A8211512-2815/64"A$ 158.40
CHRISLYNN -

Precision Professional Kits, Metric

CHRISLYNN 82153HA
StyleModelThread SizeDrill SizePrice (inc. GST)
A82153HM3 x 0.51/8"A$ 151.99
A82154HM3.5 x 0.6#27A$ 119.20
A82155HM4 x 0.711/64"A$ 112.39
A82156HM5 x 0.813/64"A$ 116.80
A82157HM6 x 11/4"A$ 121.44
A82158HM7 x 19/32"A$ 136.69
A82159HM8 x 121/64"A$ 129.41
A82160HM8 x 1.2521/64"A$ 129.41
A82162HM9 x 1.253/8"A$ 134.72
A82163HM10 x 113/32"A$ 151.99
A82165HM10 x 1.513/32"A$ 151.99
A82164HM10 x 1.2513/32"A$ 151.99
A82168HM11 x 1.529/64"A$ 158.40
A82170HM12 x 1.531/64"A$ 186.18
A82169HM12 x 1.2531/64"A$ 186.18
A82171HM12 x 1.7531/64"A$ 186.18
A82172HM14 x 1.59/16"A$ 218.19
A82173HM14 x 237/64"A$ 204.75
A82174HM16 x 1.521/32"A$ 222.40
A82175HM16 x 221/32"A$ 222.40
A82176HM18 x 1.523/32"A$ 291.32
A82178HM18 x 2.547/64"A$ 291.32
A82181HM20 x 2.513/16"A$ 302.59
CHRISLYNN -

Precision Industrial Kits, Metric

CHRISLYNN 82150A
StyleModelThread SizeDrill SizePrice (inc. GST)
A82150M2 x 0.4#45A$ 126.23
A82151M2.2 x 0.45#42A$ 116.83
A82152M2.5 x 0.45#37A$ 116.83
A82153M3 x 0.51/8"A$ 108.76
A82154M3.5 x 0.6#27A$ 109.55
A82155M4 x 0.711/64"A$ 92.79
A82156M5 x 0.813/64"A$ 93.60
A82157M6 x 11/4"A$ 87.84
A82158M7 x 19/32"A$ 112.01
A82159M8 x 121/64"A$ 103.83
A82160M8 x 1.2521/64"A$ 95.99
A82161M9 x 13/8"A$ 128.81
A82162M9 x 1.253/8"A$ 121.60
A82163M10 x 113/32"A$ 137.59
A82165M10 x 1.513/32"A$ 115.19
A82164M10 x 1.2513/32"A$ 137.59
A82166M11 x 17/16"A$ 151.84
A82168M11 x 1.529/64"A$ 132.80
A82167M11 x 1.2529/64"A$ 151.84
A82146M12 x 131/64"A$ 163.19
A82170M12 x 1.531/64"A$ 146.39
A82169M12 x 1.2531/64"A$ 146.39
A82171M12 x 1.7531/64"A$ 125.61
A82172M14 x 1.59/16"A$ 188.80
A82147M14 x 1.259/16"A$ 190.23
See more
CHRISLYNN -

Precision 8 Pitch Professional Kits

CHRISLYNN 82304A
CHRISLYNN 82312B
CHRISLYNN 82324C
StyleModelThread SizeDrill SizePrice (inc. GST)
A823041 1/2-81 1/2"A$ 1496.15
A823021 1/4-81 1/4"A$ 1448.61
A823011 1/8-81 9/64"A$ 1209.52
A823061 3/4-81 3/4"A$ 1948.08
A823031 3/8-81 3/8"A$ 1745.26
A823051 5/8-81 5/8"A$ 2436.98
A823071 7/8-81 7/8"A$ 2768.41
B823122 1/2-82 1/2"A$ 5301.60
B823102 1/4-82 1/4"A$ 3816.82
B823092 1/8-82 1/8"A$ 3659.48
B823142 3/4-82 3/4"A$ 5941.87
B823112 3/8-82 3/8"A$ 5089.00
B823132 5/8-82 5/8"A$ 5935.45
B823152 7/8-82 7/8"A$ 6647.48
A823082-82"A$ 2576.66
B823203 1/2-83 1/2"A$ 9773.68
B823183 1/4-83 1/4"A$ 8457.59
B823173 1/8-83 1/8"A$ 8103.85
B823193 3/8-83 3/8"A$ 8940.45
B823163-83"A$ 7973.44
C823244-84"-
RFQ
CHRISLYNN -

Precision Professional Kits, Metric, Giant

CHRISLYNN 82187XA
CHRISLYNN 82193XB
CHRISLYNN 82209C
StyleModelThread SizeDrill SizePrice (inc. GST)
A82187XM26 x 1.51 3/64"A$ 1141.82
A82188M27 x 1.51 5/64"A$ 1302.11
A82189M27 x 21 3/32"A$ 1233.96
A82190M27 x 31 3/32"A$ 1239.11
A82191M28 x 1.51 1/8"A$ 1637.53
A82192M30 x 1.51 13/64"A$ 1282.56
A82193M30 x 21 13/64"A$ 1398.45
B82193XM30 x 31 7/32"A$ 728.00
A82194M30 x 3.51 7/32"A$ 1283.28
A82195M33 x 21 21/64"A$ 1862.76
B82195XM33 x 31 11/32"-
RFQ
A82196M33 x 3.51 11/32"A$ 1862.76
A82197M34 x 1.51 23/64"A$ 1954.39
A82198M36 x 1.51 7/16"A$ 1954.39
A82199M36 x 21 7/16"A$ 1954.39
A82200M36 x 31 29/64"A$ 1954.39
A82201M36 x 41 15/32"A$ 1954.39
A82205M39 x 31 9/16"A$ 2376.15
A82202M39 x 41 37/64"A$ 2376.15
A82206M42 x 31 11/16"A$ 2403.26
A82203M42 x 4.51 11/16"A$ 2403.26
B82207M45 x 21 51/64"A$ 1235.20
A82204M45 x 4.51 13/16"A$ 2881.89
C82209M48 x 31 15/16"A$ 4157.23
B82214M48 x 549.5mm-
RFQ
See more
CHRISLYNN -

Precision Professional Kits, Spark Plug Insert

CHRISLYNN 88013A
StyleModelThread SizeDrill SizePrice (inc. GST)
A880137/8-1857/64"A$ 421.59
A88001M10 x 113/32"A$ 17.12
A88003M12 x 1.2531/64"A$ 162.41
A88006M14 x 1.259/16"A$ 190.23
A88011M18 x 1.523/32"A$ 257.61
CHRISLYNN -

Precision Professional Kits, NPT

CHRISLYNN 88219A
CHRISLYNN 88212B
StyleModelThread SizeDrill SizePrice (inc. GST)
A882191-11 1/2 NPT1 9/32"A$ 764.80
A882161/2-14 NPT13/16"A$ 383.99
B882121/4-18 NPT33/64"A$ 6363.96
A882101/8-27 NPT3/8"A$ 196.01
A882183/4-14 NPT1 1/64"A$ 438.23
A882143/8-18 NPT21/32"A$ 323.51
CHRISLYNN -

Precision Kits, British Thread, BSW

CHRISLYNN 82735A
CHRISLYNN 82724B
CHRISLYNN 82716C
StyleModelThread SizeDrill SizePrice (inc. GST)
A827351-8 BSW1 1/32"A$ 1550.91
B827241/2-12 BSW33/64"A$ 510.84
C827161/4-20 BSW17/64"A$ 327.05
C827101/8-40 BSW#30A$ 304.59
B827313/4-10 BSW25/32"A$ 922.55
C827203/8-16 BSW25/64"A$ 371.18
C827123/16-24 BSW#8A$ 338.01
B827295/8-11 BSW21/32"A$ 681.80
C827185/16-18 BSW21/64"A$ 347.09
A827337/8-9 BSW29/32"A$ 1173.74
C827227/16-14 BSW29/64"A$ 555.74
CHRISLYNN -

Precision British Thread Kits, BSF

CHRISLYNN 82636A
CHRISLYNN 82626B
CHRISLYNN 82617C
StyleModelThread SizeDrill SizePrice (inc. GST)
A826361-10 BSF1 1/32"A$ 1896.03
B826261/2-16 BSF33/64"A$ 820.58
C826171/4-26 BSFGA$ 381.24
B826323/4-12 BSF49/64"A$ 1169.74
C826213/8-20 BSF25/64"A$ 573.87
B826305/8-14 BSF41/64"A$ 1095.53
C826195/16-22 BSF21/64"A$ 443.85
A826347/8-11 BSF57/64"A$ 1644.02
B826237/16-18 BSF29/64"A$ 622.01
CHRISLYNN -

Precision Kits, British Thread, BSP

CHRISLYNN 88317A
CHRISLYNN 88311B
CHRISLYNN 88310C
StyleModelThread SizeDrill SizePrice (inc. GST)
A883171-11 BSP1 9/32"A$ 3152.82
A883131/2-14 BSP27/32"A$ 1176.54
B883111/4-19 BSP17/32"A$ 678.22
C883101/8-28 BSP25/64"A$ 492.62
A883153/4-14 BSP1 1/16"A$ 1665.33
B883123/8-19 BSP21/32"A$ 841.06
A883145/8-14 BSP59/64"A$ 1585.10
A883167/8-14 BSP1 13/64"A$ 3003.53
CHRISLYNN -

Precision Range Kits, Imperial

CHRISLYNN 87910A
StyleModelThread SizeMaterialPrice (inc. GST)
A879101/4-20 through 1/2-13Stainless SteelA$ 432.01
A879001/4-20 through 3/8-16Stainless SteelA$ 270.39
A879111/4-28 through 1/2-20Stainless SteelA$ 444.80
A879011/4-28 through 3/8-24Stainless SteelA$ 270.39
A879125/8-11 through 7/8-9Stainless SteelA$ 611.21
A879135/8-18 through 7/8-14Stainless SteelA$ 687.99
A879026-32 through 10-24Stainless SteelA$ 267.99
A879036-40 through 10-32Stainless SteelA$ 267.99
CHRISLYNN -

Precision Total Master Kits, Metric

CHRISLYNN 87905A
StyleModelThread SizePrice (inc. GST)
A87905M4 x 0.7 through M6 x 1A$ 264.01
A87914M5 x 0.8 through M12 x 1.25A$ 451.20
A87915M5 x 0.8 through M12 x 1.75A$ 451.20
A87906M6 x 1 through M10 x 1A$ 313.60
A87916M8 x 1 through M12 x 1.5A$ 544.79
A87907M8 x 1.25 through M12 x 1.75A$ 316.80
A87918M14 x 1.5 through M18 x 1.5A$ 569.61
A87917M14 x 2 through M18 x 2A$ 563.20
CHRISLYNN -

Precision Total Professional Master Kits

CHRISLYNN 87925A
StyleModelPrice (inc. GST)
A87925A$ 5864.80
A87927A$ 5424.19
A87930A$ 5240.42
A87920A$ 4906.11
A87924A$ 5176.97
A87923A$ 5624.78
CHRISLYNN -

Rock Solid Mini Kits, UNC, Thin Wall

CHRISLYNN 68926A
StyleModelThread SizeDrill SizePrice (inc. GST)
A689261/2-1337/64"A$ 99.62
A689221/4-20QA$ 88.74
A689243/8-1629/64"A$ 89.18
A689235/16-18XA$ 90.89
A689257/16-1433/64"A$ 95.99
A6892110-24IA$ 85.91
CHRISLYNN -

Rock Solid Kits, UNC, Thin Wall

CHRISLYNN 69926A
StyleModelThread SizeDrill SizePrice (inc. GST)
A699261/2-1337/64"A$ 219.04
A699221/4-20QA$ 126.23
A699243/8-1629/64"A$ 148.63
A699235/16-18XA$ 148.63
A699257/16-1433/64"A$ 204.79
A6992110-24IA$ 116.80
CHRISLYNN -

Rock Solid Heavy Duty Mini Kits, UNC

CHRISLYNN 68916A
StyleModelThread SizeDrill SizePrice (inc. GST)
A689161 1/2-61 13/16"-
RFQ
A689141 1/4-71 9/16"-
RFQ
A689131 1/8-71 7/16"-
RFQ
A689111-81 5/16"A$ 188.42
A689061/2-1345/64"A$ 98.82
A689021/4-20XA$ 87.86
A689093/4-101 1/16"A$ 117.79
A689043/8-1633/64"A$ 89.18
A689085/8-1153/64"A$ 104.26
A689035/16-1829/64"A$ 91.29
A689107/8-91 3/16"A$ 136.02
A689057/16-1437/64"A$ 95.99
A689008-32IA$ 101.75
A689079/16-1245/64"A$ 110.08
A6890110-24QA$ 85.69
CHRISLYNN -

Rock Solid Heavy Duty Kits, UNC

CHRISLYNN 69916A
StyleModelThread SizeDrill SizePrice (inc. GST)
A699161 1/2-61 13/16"A$ 1722.40
A699141 1/4-71 9/16"A$ 1279.85
A699131 1/8-71 7/16"A$ 896.00
A699111-81 5/16"A$ 695.99
A699061/2-1345/64"A$ 233.75
A699021/4-20XA$ 144.00
A699093/4-101 1/16"A$ 437.61
A699043/8-1633/64"A$ 196.01
A699085/8-1153/64"A$ 293.76
A699035/16-1829/64"A$ 148.63
A699107/8-91 3/16"A$ 562.40
A699057/16-1437/64"A$ 210.39
A699008-32IA$ 133.60
A699079/16-1245/64"A$ 245.76
A6990110-24QA$ 121.60
CHRISLYNN -

Rock Solid Mini Kits, UNF, Thin Wall

CHRISLYNN 68126A
StyleModelThread SizeDrill SizePrice (inc. GST)
A681261/2-2037/64"A$ 100.14
A681221/4-28QA$ 89.41
A681243/8-2429/64"A$ 90.17
A681235/16-24XA$ 92.39
A681257/16-2033/64"A$ 95.99
A6812110-32IA$ 85.91

Helical Thread Insert Kits

Helical thread insert kits are used to install threaded fasteners in metals, polymers, wood & composites by repairing stripped / damaged tapped holes or creating threaded holes. They are ideal for preventing wear, corrosion and over-torque in automobile, aerospace and maintenance applications. Raptor Supplies offers thread insert kits from brands like AVK, Chrislynn, E-Z Lok, NES, Powercoil & Recoil. They provide more strength, versatility & productivity, as well as decreased downtime & maintenance costs than traditional threaded holes.

Features

  • Helical thread insert kits come with helical inserts, high-speed taps, drill bits, tang break-off tools and installation tools.
  • Most kits have a protective carry case / bag for a simplified storage solution.
  • Drill bits are available in various sizes and are attached to drills to create holes in work surfaces.
  • Taps are used to create threading inside drilled holes and provide a pathway for threaded inserts during installation.
  • These taps are usually made of high-speed steel for structural strength to resist bending / breaking under harsh usage.
  • Threaded inserts are available in 2 variants - free-running (helical) for reduced stress & material fatigue and key locking (alternatively, rock solid) for securing on soft materials.
  • Helical threaded inserts may have a tang / prong at the end of their wire coil body for ease of installation.
  • Some helical thread insert kits have tang removal tools to remove the tang and screw fasteners.
  • The inserts have steel, carbon steel, stainless steel or brass construction for strength, rigidity & corrosion resistance.
  • They are available in various thread sizes, such as UNC, UNF, BSW, BSF, BSP, NPT & Metric.
  • Chrislynn thread inserts kits contain free-running inserts having lengths up to twice the insert diameter.
  • Chrislynn rock solid thread inserts kits have a key locking design and a solid one-piece body.
  • Powercoil thread insert kits are made of stainless steel and come with or without a drill bit.

Frequently Asked Questions

Why is the diameter of some helical thread inserts larger than the tapped hole?

Many helical thread inserts have a slightly larger diameter than the required hole diameter. When the helical insert is being installed, its diameter decreases due to applied torque on the insert's prong / tang. However, once the threaded insert gets installed, it operates like a spring to expand outward into the material and provide strong anchoring.

What is the difference between helical and key locking thread inserts?

  • Helical inserts are free-running inserts that allow attachment with metal fasteners without using any coating or lubricant. They are ideal for particle-free environments and can expand after installation to secure themselves in the base material.
  • Key locking inserts form the strongest hold of all threaded inserts on soft metal surfaces using their distorted internal threads / locking keys that prevent slipping or rotating by driving into the surrounding material. They have superior strength owing to their solid, one-piece metal construction, unlike helical inserts that are made of coiled wire.

How to install a helical thread insert?

  • Select a drill bit according to the length of the insert / screw / bolt to drill out the damaged threading up to the required depth.
  • Use an appropriately sized tap to re-thread the drilled hole in the material.
  • Select a Helicoil thread insert and use the installation tool to wind the insert into the hole.
  • Use the tang break-off rod or punch to remove the tang / prong and allow free passage of the fastener. Large-sized holes or spark plug inserts require long-nose pliers to bend the tang in & out alternately until the tang breaks free.
  • The repaired threaded hole is now ready for fastening applications.

How to install a key-locking thread insert?

  • Drill a hole according to the required application.
  • Tap the drilled hole and wind the insert into the hole.
  • Drive the key into the material using the installation tool & hammer.

Can thread inserts be removed once installed?

Yes, some thread inserts can be removed using removal tools that attach to them & unwind them in the direction opposite to that used during installation. Key locking or rock solid inserts can be removed by bending the locking keys out of the material and using a winding tool to remove the insert out of the base material.

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