Helical Thread Insert Kits

Filter

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" SGD 1135.66
A82140H1 1/4-71 9/32" SGD 593.48
A82138H1 1/8-71 5/32" SGD 521.03
A82142H1 3/8-61 13/32" SGD 771.96
A82135H1-81 1/32" SGD 408.76
A82124H1/2-1317/32" SGD 150.55
A82116H1/4-2017/64" SGD 107.51
A82100H2-563/32" SGD 128.49
A82131H3/4-1025/32" SGD 221.92
A82120H3/8-1625/64" SGD 120.59
A82104H4-40#31 SGD 115.27
A82106H5-40#29 SGD 122.14
A82129H5/8-1121/32" SGD 178.58
A82118H5/16-1821/64" SGD 115.84
A82108H6-32#25 SGD 114.42
A82133H7/8-929/32" SGD 311.92
A82122H7/16-1429/64" SGD 138.18
A82110H8-3211/64" SGD 108.12
A82127H9/16-1219/32" SGD 183.15
A82112H10-2413/64" SGD 111.39
A82114H12-2415/64" SGD 121.43
CHRISLYNN -

Precision Complete Industrial Kits, UNC

CHRISLYNN 82144A
StyleModelThread SizeDrill SizePrice (inc. GST)
A821441 1/2-61 17/32" SGD 702.14
A821401 1/4-71 9/32" SGD 489.53
A821381 1/8-71 5/32" SGD 417.90
A821421 3/8-61 13/32" SGD 692.29
A821351-81 1/32" SGD 312.37
A821241/2-1317/32" SGD 102.44
A821161/4-2017/64" SGD 75.28
A821002-563/32" SGD 91.81
A821023-48#36 SGD 101.30
A821313/4-1025/32" SGD 181.52
A821203/8-1625/64" SGD 86.53
A821044-40#31 SGD 88.56
A821065-40#29 SGD 95.69
A821295/8-1121/32" SGD 150.85
A821185/16-1821/64" SGD 78.81
A821086-32#25 SGD 85.13
A821337/8-929/32" SGD 250.46
A821227/16-1429/64" SGD 101.30
A821108-3211/64" SGD 80.07
A821279/16-1219/32" SGD 136.21
A8211210-2413/64" SGD 80.20
A8211412-2415/64" SGD 94.27
CHRISLYNN -

Precision Professional Kits, UNF

CHRISLYNN 82145HA
StyleModelThread SizeDrill SizePrice (inc. GST)
A82145H1 1/2-121 17/32" SGD 1135.66
A82141H1 1/4-121 9/32" SGD 593.48
A82139H1 1/8-121 5/32" SGD 521.03
A82143H1 3/8-121 13/32" SGD 771.96
A82136H1-121 1/64" SGD 456.24
A82137H1-141 1/64" SGD 456.24
A82126H1/2-2033/64" SGD 162.37
A82117H1/4-2817/64" SGD 107.51
A82132H3/4-1649/64" SGD 224.46
A82121H3/8-2425/64" SGD 120.59
A82130H5/8-1841/64" SGD 202.06
A82119H5/16-2421/64" SGD 115.84
A82134H7/8-1457/64" SGD 347.28
A82123H7/16-2029/64" SGD 138.18
A82128H9/16-1837/64" SGD 186.80
A82113H10-3213/64" SGD 111.39
CHRISLYNN -

Precision Complete Industrial Kits, UNF

CHRISLYNN 82145A
StyleModelThread SizeDrill SizePrice (inc. GST)
A821451 1/2-121 17/32" SGD 702.14
A821411 1/4-121 9/32" SGD 489.53
A821391 1/8-121 5/32" SGD 440.42
A821431 3/8-121 13/32" SGD 692.29
A821361-121 1/64" SGD 364.44
A821371-141 1/64" SGD 364.44
A821261/2-2033/64" SGD 126.64
A821171/4-2817/64" SGD 80.91
A821033-56#37 SGD 101.30
A821323/4-1649/64" SGD 185.73
A821213/8-2425/64" SGD 86.11
A821054-48#31 SGD 101.30
A821305/8-1841/64" SGD 174.48
A821195/16-2421/64" SGD 81.60
A821096-40#25 SGD 101.30
A821347/8-1457/64" SGD 290.56
A821237/16-2029/64" SGD 101.30
A821118-36#17 SGD 87.36
A821289/16-1837/64" SGD 150.41
A8211310-3213/64" SGD 80.20
A8211512-2815/64" SGD 139.30
CHRISLYNN -

Precision Professional Kits, Metric

CHRISLYNN 82153HA
StyleModelThread SizeDrill SizePrice (inc. GST)
A82153HM3 x 0.51/8" SGD 133.67
A82154HM3.5 x 0.6#27 SGD 104.83
A82155HM4 x 0.711/64" SGD 98.84
A82156HM5 x 0.813/64" SGD 102.72
A82157HM6 x 11/4" SGD 106.80
A82158HM7 x 19/32" SGD 120.21
A82159HM8 x 121/64" SGD 113.81
A82160HM8 x 1.2521/64" SGD 113.81
A82162HM9 x 1.253/8" SGD 118.48
A82163HM10 x 113/32" SGD 133.67
A82165HM10 x 1.513/32" SGD 133.67
A82164HM10 x 1.2513/32" SGD 133.67
A82168HM11 x 1.529/64" SGD 139.30
A82170HM12 x 1.531/64" SGD 163.73
A82169HM12 x 1.2531/64" SGD 163.73
A82171HM12 x 1.7531/64" SGD 163.73
A82172HM14 x 1.59/16" SGD 191.88
A82173HM14 x 237/64" SGD 180.06
A82174HM16 x 1.521/32" SGD 195.58
A82175HM16 x 221/32" SGD 195.58
A82176HM18 x 1.523/32" SGD 256.20
A82178HM18 x 2.547/64" SGD 256.20
A82181HM20 x 2.513/16" SGD 266.11
CHRISLYNN -

Precision Industrial Kits, Metric

CHRISLYNN 82150A
StyleModelThread SizeDrill SizePrice (inc. GST)
A82150M2 x 0.4#45 SGD 111.01
A82151M2.2 x 0.45#42 SGD 102.74
A82152M2.5 x 0.45#37 SGD 102.74
A82153M3 x 0.51/8" SGD 95.65
A82154M3.5 x 0.6#27 SGD 96.34
A82155M4 x 0.711/64" SGD 81.60
A82156M5 x 0.813/64" SGD 82.31
A82157M6 x 11/4" SGD 77.25
A82158M7 x 19/32" SGD 98.50
A82159M8 x 121/64" SGD 91.31
A82160M8 x 1.2521/64" SGD 84.42
A82161M9 x 13/8" SGD 113.28
A82162M9 x 1.253/8" SGD 106.94
A82163M10 x 113/32" SGD 121.00
A82165M10 x 1.513/32" SGD 101.30
A82164M10 x 1.2513/32" SGD 121.00
A82166M11 x 17/16" SGD 133.53
A82168M11 x 1.529/64" SGD 116.79
A82167M11 x 1.2529/64" SGD 133.53
A82146M12 x 131/64" SGD 143.52
A82170M12 x 1.531/64" SGD 128.74
A82169M12 x 1.2531/64" SGD 128.74
A82171M12 x 1.7531/64" SGD 110.46
A82172M14 x 1.59/16" SGD 166.03
A82147M14 x 1.259/16" SGD 167.29
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" SGD 1315.77
A823021 1/4-81 1/4" SGD 1273.96
A823011 1/8-81 9/64" SGD 1063.69
A823061 3/4-81 3/4" SGD 1713.20
A823031 3/8-81 3/8" SGD 1534.84
A823051 5/8-81 5/8" SGD 2143.16
A823071 7/8-81 7/8" SGD 2434.63
B823122 1/2-82 1/2" SGD 4662.40
B823102 1/4-82 1/4" SGD 3356.64
B823092 1/8-82 1/8" SGD 3218.26
B823142 3/4-82 3/4" SGD 5225.47
B823112 3/8-82 3/8" SGD 4475.43
B823132 5/8-82 5/8" SGD 5219.82
B823152 7/8-82 7/8" SGD 5846.00
A823082-82" SGD 2266.00
B823203 1/2-83 1/2" SGD 8595.28
B823183 1/4-83 1/4" SGD 7437.88
B823173 1/8-83 1/8" SGD 7126.79
B823193 3/8-83 3/8" SGD 7862.51
B823163-83" SGD 7012.10
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" SGD 1004.15
A82188M27 x 1.51 5/64" SGD 1145.12
A82189M27 x 21 3/32" SGD 1085.18
A82190M27 x 31 3/32" SGD 1089.71
A82191M28 x 1.51 1/8" SGD 1440.09
A82192M30 x 1.51 13/64" SGD 1127.92
A82193M30 x 21 13/64" SGD 1229.84
B82193XM30 x 31 7/32" SGD 640.23
A82194M30 x 3.51 7/32" SGD 1128.56
A82195M33 x 21 21/64" SGD 1638.17
B82195XM33 x 31 11/32"-
RFQ
A82196M33 x 3.51 11/32" SGD 1638.17
A82197M34 x 1.51 23/64" SGD 1718.75
A82198M36 x 1.51 7/16" SGD 1718.75
A82199M36 x 21 7/16" SGD 1718.75
A82200M36 x 31 29/64" SGD 1718.75
A82201M36 x 41 15/32" SGD 1718.75
A82205M39 x 31 9/16" SGD 2089.67
A82202M39 x 41 37/64" SGD 2089.67
A82206M42 x 31 11/16" SGD 2113.50
A82203M42 x 4.51 11/16" SGD 2113.50
B82207M45 x 21 51/64" SGD 1086.28
A82204M45 x 4.51 13/16" SGD 2534.43
C82209M48 x 31 15/16" SGD 3656.00
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" SGD 370.76
A88001M10 x 113/32" SGD 15.05
A88003M12 x 1.2531/64" SGD 142.83
A88006M14 x 1.259/16" SGD 167.29
A88011M18 x 1.523/32" SGD 226.55
CHRISLYNN -

Precision Professional Kits, NPT

CHRISLYNN 88219A
CHRISLYNN 88212B
StyleModelThread SizeDrill SizePrice (inc. GST)
A882191-11 1/2 NPT1 9/32" SGD 672.59
A882161/2-14 NPT13/16" SGD 337.69
B882121/4-18 NPT33/64" SGD 5596.67
A882101/8-27 NPT3/8" SGD 172.38
A882183/4-14 NPT1 1/64" SGD 385.40
A882143/8-18 NPT21/32" SGD 284.51
CHRISLYNN -

Precision Kits, British Thread, BSW

CHRISLYNN 82735A
CHRISLYNN 82724B
CHRISLYNN 82716C
StyleModelThread SizeDrill SizePrice (inc. GST)
A827351-8 BSW1 1/32" SGD 1363.92
B827241/2-12 BSW33/64" SGD 449.25
C827161/4-20 BSW17/64" SGD 287.62
C827101/8-40 BSW#30 SGD 267.87
B827313/4-10 BSW25/32" SGD 811.32
C827203/8-16 BSW25/64" SGD 326.43
C827123/16-24 BSW#8 SGD 297.25
B827295/8-11 BSW21/32" SGD 599.60
C827185/16-18 BSW21/64" SGD 305.25
A827337/8-9 BSW29/32" SGD 1032.23
C827227/16-14 BSW29/64" SGD 488.74
CHRISLYNN -

Precision British Thread Kits, BSF

CHRISLYNN 82636A
CHRISLYNN 82626B
CHRISLYNN 82617C
StyleModelThread SizeDrill SizePrice (inc. GST)
A826361-10 BSF1 1/32" SGD 1667.43
B826261/2-16 BSF33/64" SGD 721.64
C826171/4-26 BSFG SGD 335.27
B826323/4-12 BSF49/64" SGD 1028.71
C826213/8-20 BSF25/64" SGD 504.68
B826305/8-14 BSF41/64" SGD 963.45
C826195/16-22 BSF21/64" SGD 390.34
A826347/8-11 BSF57/64" SGD 1445.80
B826237/16-18 BSF29/64" SGD 547.01
CHRISLYNN -

Precision Kits, British Thread, BSP

CHRISLYNN 88317A
CHRISLYNN 88311B
CHRISLYNN 88310C
StyleModelThread SizeDrill SizePrice (inc. GST)
A883171-11 BSP1 9/32" SGD 2772.69
A883131/2-14 BSP27/32" SGD 1034.68
B883111/4-19 BSP17/32" SGD 596.44
C883101/8-28 BSP25/64" SGD 433.23
A883153/4-14 BSP1 1/16" SGD 1464.55
B883123/8-19 BSP21/32" SGD 739.65
A883145/8-14 BSP59/64" SGD 1393.99
A883167/8-14 BSP1 13/64" SGD 2641.40
CHRISLYNN -

Precision Range Kits, Imperial

CHRISLYNN 87910A
StyleModelThread SizeMaterialPrice (inc. GST)
A879101/4-20 through 1/2-13Stainless Steel SGD 379.92
A879001/4-20 through 3/8-16Stainless Steel SGD 237.79
A879111/4-28 through 1/2-20Stainless Steel SGD 391.17
A879011/4-28 through 3/8-24Stainless Steel SGD 237.79
A879125/8-11 through 7/8-9Stainless Steel SGD 537.51
A879135/8-18 through 7/8-14Stainless Steel SGD 605.04
A879026-32 through 10-24Stainless Steel SGD 235.68
A879036-40 through 10-32Stainless Steel SGD 235.68
CHRISLYNN -

Precision Total Master Kits, Metric

CHRISLYNN 87905A
StyleModelThread SizePrice (inc. GST)
A87905M4 x 0.7 through M6 x 1 SGD 232.18
A87914M5 x 0.8 through M12 x 1.25 SGD 396.80
A87915M5 x 0.8 through M12 x 1.75 SGD 396.80
A87906M6 x 1 through M10 x 1 SGD 275.79
A87916M8 x 1 through M12 x 1.5 SGD 479.11
A87907M8 x 1.25 through M12 x 1.75 SGD 278.61
A87918M14 x 1.5 through M18 x 1.5 SGD 500.93
A87917M14 x 2 through M18 x 2 SGD 495.30
CHRISLYNN -

Precision Total Professional Master Kits

CHRISLYNN 87925A
StyleModelPrice (inc. GST)
A87925 SGD 5157.70
A87927 SGD 4770.20
A87930 SGD 4608.59
A87920 SGD 4314.59
A87924 SGD 4552.80
A87923 SGD 4946.61
CHRISLYNN -

Rock Solid Mini Kits, UNC, Thin Wall

CHRISLYNN 68926A
StyleModelThread SizeDrill SizePrice (inc. GST)
A689261/2-1337/64" SGD 87.61
A689221/4-20Q SGD 78.04
A689243/8-1629/64" SGD 78.43
A689235/16-18X SGD 79.93
A689257/16-1433/64" SGD 84.42
A6892110-24I SGD 75.56
CHRISLYNN -

Rock Solid Kits, UNC, Thin Wall

CHRISLYNN 69926A
StyleModelThread SizeDrill SizePrice (inc. GST)
A699261/2-1337/64" SGD 192.63
A699221/4-20Q SGD 111.01
A699243/8-1629/64" SGD 130.71
A699235/16-18X SGD 130.71
A699257/16-1433/64" SGD 180.10
A6992110-24I SGD 102.72
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" SGD 165.70
A689061/2-1345/64" SGD 86.90
A689021/4-20X SGD 77.27
A689093/4-101 1/16" SGD 103.59
A689043/8-1633/64" SGD 78.43
A689085/8-1153/64" SGD 91.69
A689035/16-1829/64" SGD 80.28
A689107/8-91 3/16" SGD 119.62
A689057/16-1437/64" SGD 84.42
A689008-32I SGD 89.48
A689079/16-1245/64" SGD 96.81
A6890110-24Q SGD 75.36
CHRISLYNN -

Rock Solid Heavy Duty Kits, UNC

CHRISLYNN 69916A
StyleModelThread SizeDrill SizePrice (inc. GST)
A699161 1/2-61 13/16" SGD 1514.74
A699141 1/4-71 9/16" SGD 1125.54
A699131 1/8-71 7/16" SGD 787.97
A699111-81 5/16" SGD 612.08
A699061/2-1345/64" SGD 205.57
A699021/4-20X SGD 126.64
A699093/4-101 1/16" SGD 384.84
A699043/8-1633/64" SGD 172.38
A699085/8-1153/64" SGD 258.34
A699035/16-1829/64" SGD 130.71
A699107/8-91 3/16" SGD 494.59
A699057/16-1437/64" SGD 185.02
A699008-32I SGD 117.49
A699079/16-1245/64" SGD 216.13
A6990110-24Q SGD 106.94
CHRISLYNN -

Rock Solid Mini Kits, UNF, Thin Wall

CHRISLYNN 68126A
StyleModelThread SizeDrill SizePrice (inc. GST)
A681261/2-2037/64" SGD 88.06
A681221/4-28Q SGD 78.63
A681243/8-2429/64" SGD 79.30
A681235/16-24X SGD 81.25
A681257/16-2033/64" SGD 84.42
A6812110-32I SGD 75.56

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.

We are here to help!

Looking for a part not listed here?

Chat with us now

Explore More