Helical Thread Repair Inserts | Raptor Supplies United Kingdom
sales@raptorsupplies.co.uk WhatsApp 0203 287 5224

Helical Thread Repair Inserts

Filter

Helical thread repair inserts are designed to repair worn threads inside tapped holes. They provide reliable threading in metals, composites, wood or similar materials. Raptor Supplies...Read more

CHRISLYNN -

Precision Tools Display Racks

CHRISLYNN 87926AA
StyleModelPrice (inc. VAT)
A87926A£715.31
A87926M£758.77
CHRISLYNN -

Precision Inserts, UNC, Small Quantity Packs

CHRISLYNN 83144A
StyleModelThread SizeInsert LengthDrill SizePrice (inc. VAT)
A831441 1/2-62.25"1 17/32"£38.21
A831401 1/4-71.875"1 9/32"£30.96
A831381 1/8-71.688"1 5/32"£31.87
A831421 3/8-62.062"1 13/32"£44.64
A831351-81.5"1 1/32"£23.18
A831241/2-130.75"17/32"£21.56
A831161/4-200.375"17/64"£21.28
A831002-560.129"3/32"£14.30
A831023-480.148"#36£16.38
A831313/4-101.125"25/32"£27.45
A831203/8-160.562"25/64"£22.28
A831044-400.168"#31£13.32
A831065-400.188"#29£14.94
A831295/8-110.938"21/32"£27.45
A831185/16-180.469"21/64"£100.50
A831086-320.207"#25£13.67
A831337/8-91.312"29/32"£21.37
A831227/16-140.656"29/64"£21.28
A831108-320.246"11/64"£19.20
A831279/16-120.844"19/32"£29.43
A8311210-240.285"13/64"£21.91
A8311412-240.324"15/64"£23.00
CHRISLYNN -

E Z Fix Inserts, Metric, Carbon

CHRISLYNN 9450-3A
StyleModelInsert LengthDrill SizeExternal Thread SizeInternal Thread SizePrice (inc. VAT)
A9450-36.5mm#7M6 x 1M3 x 0.5£17.33
A9450-57.5mmIM8 x 1.25M5 x 0.8£15.81
A9450-47.5mmIM8 x 1.25M4 x 0.7£15.56
A9450-610.5mmRM10 x 1.5M6 x 1£16.08
A9450-812.5mmZM12 x 1.75M8 x 1.25£16.38
A9450-1017mm35/64"M16 x 2M10 x 1.5£17.80
A9450-1217mm35/64"M16 x 2M12 x 1.75£18.28
A9450-1620mm53/64"M24 x 3M16 x 2£19.15
A9450-2030mm1 5/16"M36 x 4M20 x 2.5£16.74
CHRISLYNN -

Precision Inserts, Metric, Small Quantity Packs

CHRISLYNN 83150A
StyleModelThread SizeInsert LengthDrill SizePrice (inc. VAT)
A83150M2 x 0.43mm#45£41.74
A83151M2.2 x 0.453.3mm#42£15.75
A83152M2.5 x 0.453.8mm#37£12.23
A83153M3 x 0.54.5mm1/8"£11.86
A83154M3.5 x 0.65.3mm#27£13.95
A83155M4 x 0.76mm11/64"£19.05
A83156M5 x 0.87.5mm13/64"£19.05
A83157M6 x 19mm1/4"£19.83
A83158M7 x 110.5mm9/32"£23.36
A83159M8 x 112mm21/64"£20.64
A83160M8 x 1.2512mm21/64"£20.00
A83161M9 x 113.5mm3/8"£22.40
A83162M9 x 1.2513.5mm3/8"£22.54
A83163M10 x 115mm13/32"£22.40
A83165M10 x 1.515mm13/32"£22.62
A83164M10 x 1.2515mm13/32"£22.40
A83166M11 x 116.5mm7/16"£20.55
A83168M11 x 1.516.55m29/64"£21.58
A83167M11 x 1.2516.5mm29/64"£20.55
A83146M12 x 118mm31/64"£21.10
A83170M12 x 1.518mm31/64"£21.10
A83169M12 x 1.2518mm31/64"£21.10
A83171M12 x 1.7518mm31/64"£20.30
A83172M14 x 1.521mm9/16"£24.12
A83147M14 x 1.2521mm9/16"£24.12
See more
CHRISLYNN -

E Z Fix Inserts, Metric, Stainless Steel

CHRISLYNN 9453-3A
StyleModelInsert LengthDrill SizeExternal Thread SizeInternal Thread SizePrice (inc. VAT)
A9453-36.5mm#7M6 x 1M3 x 0.5£16.33
A9453-47.5mmIM8 x 1.25M4 x 0.7£16.93
A9453-57.5mmIM8 x 1.25M5 x 0.8£17.25
A9453-610.5mmRM10 x 1.5M6 x 1£17.50
A9453-812.5mmZM12 x 1.75M8 x 1.25£18.11
A9453-1217mm35/64"M16 x 2M12 x 1.75£20.47
A9453-1017mm35/64"M16 x 2M10 x 1.5£19.62
A9453-1620mm53/64"M24 x 3M16 x 2£23.46
CHRISLYNN -

E Z Fix Inserts, Metric-Imperial, Carbon

CHRISLYNN 9650-6A
StyleModelInsert LengthDrill SizeExternal Thread SizeInternal Thread SizePrice (inc. VAT)
A9650-60.406"5/16"3/8-16M6 x 1£14.93
A9650-80.484"27/64"1/2-13M8 x 1.25£15.27
A9650-100.515"31/64"9/16-12M10 x 1.5£15.43
A9650-10F0.515"31/64"9/16-12M10 x 1.25£15.43
A9650-120.656"21/32"3/4-10M12 x 1.75£15.99
A9650-140.687"49/64"7/8-9M14 x 2£16.84
A9650-160.781"7/8"1-8M16 x 2£17.77
CHRISLYNN -

E Z Fix Inserts, Metric and Imperial, Stainless Steel

CHRISLYNN 9653-6A
StyleModelInsert LengthDrill SizeExternal Thread SizeInternal Thread SizePrice (inc. VAT)
A9653-60.406"5/16"3/8-16M6 x 1£17.42
A9653-80.484"27/64"1/2-13M8 x 1.25£18.01
A9653-100.515"31/64"9/16-12M10 x 1.5£18.64
A9653-10F0.515"31/64"9/16-12M10 x 1.25£18.64
A9653-120.656"21/32"3/4-10M12 x 1.75£20.77
A9653-140.687"49/64"7/8-9M14 x 2£22.46
A9653-160.781"7/8"1-8M16 x 2£23.46
CHRISLYNN -

E Z Fix Inserts, Imperial-Metric, Carbon

CHRISLYNN 9550-006A
StyleModelInsert LengthDrill SizeExternal Thread SizeInternal Thread SizePrice (inc. VAT)
A9550-0066.5mm#7M6 x 16-32£15.43
A9550-10247.5mmIM8 x 1.2510-24£16.08
A9550-10327.5mmIM8 x 1.2510-32£16.08
A9550-0087.5mmIM8 x 1.258-32£15.56
A9550-142010.5mmRM10 x 1.51/4-20£16.38
A9550-512.5mmZM12 x 1.755/16-18£16.38
A9550-617mm35/64"M16 x 23/8-16£17.25
A9550-817mm35/64"M16 x 21/2-13£17.46
POWERCOIL -

Helical Inserts

POWERCOIL 3532-6GX2.0DA
POWERCOIL 3532-6GX1.5DB
POWERCOIL 3532-6GX1.5DSLC
POWERCOIL 3532-6GX1.0DSLD
POWERCOIL 3532-6GX1.0DE
POWERCOIL 3532-6GX2.0DSLF
POWERCOIL 3532-5GX2.0DG
POWERCOIL 3532-5GX1.0DSLH
POWERCOIL 3532-5GX1.5DI
POWERCOIL 3532-5GX1.5DSLJ
POWERCOIL 3532-5GX1.0DK
POWERCOIL 3532-5GX2.0DSLL
POWERCOIL 3532-4GX2.0DSLM
POWERCOIL 3532-4GX1.0DN
POWERCOIL 3532-4GX1.5DSLO
POWERCOIL 3532-4GX1.0DSLP
POWERCOIL 3532-2GX1.0DSLQ
POWERCOIL 3532-2GX1.5DSLR
POWERCOIL 3534-1X1.0DS
POWERCOIL 3535-1X1.0DSLT
POWERCOIL 3535-1X1.0DU
StyleModelDrill SizeFree Coil Dia.LengthSizeTap SizesThread TypeTypePrice (inc. VAT)
A3532-6GX2.0D#250.193"0.276"6-326-32UNCFree Running£7.79
B3532-6GX1.5D#250.193"0.207"6-326-32UNCFree Running£5.83
C3532-6GX1.5DSL#250.193"0.207"6-326-32UNCScrew Locking£7.88
D3532-6GX1.0DSL#250.193"0.138"6-326-32UNCScrew Locking£7.86
E3532-6GX1.0D#250.193"0.138"6-326-32UNCFree Running£4.49
F3532-6GX2.0DSL#250.193"0.276"6-326-32UNCScrew Locking£6.27
G3532-5GX2.0D#290.173"0.25"5-405-40UNCFree Running£7.41
H3532-5GX1.0DSL#290.173"0.125"5-405-40UNCScrew Locking£6.34
I3532-5GX1.5D#290.173"0.188"5-405-40UNCFree Running£3.85
J3532-5GX1.5DSL#290.173"0.188"5-405-40UNCScrew Locking£6.27
K3532-5GX1.0D#290.173"0.125"5-405-40UNCFree Running£3.64
L3532-5GX2.0DSL#290.173"0.25"5-405-40UNCScrew Locking£9.74
M3532-4GX2.0DSL#310.159"0.224"4-404-40UNCScrew Locking£9.35
N3532-4GX1.0D#310.159"0.112"4-404-40UNCFree Running£5.96
O3532-4GX1.5DSL#310.159"0.168"4-404-40UNCScrew Locking£5.24
P3532-4GX1.0DSL#310.159"0.112"4-404-40UNCScrew Locking£6.74
N3532-4GX2.0D#310.159"0.224"4-404-40UNCFree Running£7.79
N3532-4GX1.5D#310.159"0.168"4-404-40UNCFree Running£5.93
N3532-2GX1.5D#410.119"0.129"2-562-56UNCFree Running£7.47
Q3532-2GX1.0DSL#410.119"0.086"2-562-56UNCScrew Locking£7.83
N3532-2GX1.0D#410.119"0.086"2-562-56UNCFree Running£4.58
R3532-2GX1.5DSL#410.119"0.129"2-562-56UNCScrew Locking£5.96
S3534-1X1.0D1-1/64"1.199"1"1-121-12UNFFree Running£5.39
T3535-1X1.0DSL1-1/64"1.199"1"1-141-14UNFScrew Locking£4.86
U3535-1X1.0D1-1/64"1.199"1"1-141-14UNFFree Running£6.27
See more
POWERCOIL -

Tangless Inserts

POWERCOIL 3532-6GX1.5DSLTLA
POWERCOIL 3532-6GX1.0DTLB
POWERCOIL 3532-6GX2.0ODTLC
POWERCOIL 3532-6GX1.5DTLD
POWERCOIL 3532-6GX1.0DSLTLE
POWERCOIL 3532-4GX1.5DTLF
POWERCOIL 3532-4GX1.0DSLTLG
POWERCOIL 3532-4GX1.5DSLTLH
POWERCOIL 3532-4GX2.0DSLTLI
POWERCOIL 3532-4GX1.0DTLJ
POWERCOIL 3532-4GX2.0DTLK
POWERCOIL 3532-2GX2.0DSLTLL
POWERCOIL 3532-2GX1.0DTLM
POWERCOIL 3532-2GX1.5DTLN
POWERCOIL 3532-2GX2.0DTLO
POWERCOIL 3532-2GX1.5DSLTLP
POWERCOIL 3532-2GX1.0DSLTLQ
POWERCOIL 3532-8GX1.0DSLTLR
POWERCOIL 3532-8GX1.5DTLS
POWERCOIL 3532-8GX2.0DTLT
POWERCOIL 3532-8GX1.5DSLTLU
POWERCOIL 3532-8GX1.0DTLV
POWERCOIL 3532-8GX2.0DSLTLW
POWERCOIL 3534-10GX2.0DTLX
POWERCOIL 3532-10GX2.0DTLY
StyleModelDrill SizeFree Coil Dia.LengthSizeTap SizesThread TypeTypePrice (inc. VAT)
A3532-6GX1.5DSLTL#250.193"0.207"6-326-32UNCScrew Locking-
RFQ
B3532-6GX1.0DTL#250.193"0.138"6-326-32UNCFree Running-
RFQ
C3532-6GX2.0ODTL#250.193"0.276"6-326-32UNCFree Running-
RFQ
D3532-6GX1.5DTL#250.193"0.207"6-326-32UNCFree Running-
RFQ
E3532-6GX1.0DSLTL#250.193"0.138"6-326-32UNCScrew Locking-
RFQ
F3532-4GX1.5DTL#310.159"0.168"4-404-40UNCFree Running£102.90
G3532-4GX1.0DSLTL#310.159"0.112"4-404-40UNCScrew Locking£182.19
H3532-4GX1.5DSLTL#310.159"0.168"4-404-40UNCScrew Locking£188.66
I3532-4GX2.0DSLTL#310.159"0.224"4-404-40UNCScrew Locking-
RFQ
J3532-4GX1.0DTL#310.159"0.112"4-404-40UNCFree Running-
RFQ
K3532-4GX2.0DTL#310.159"0.224"4-404-40UNCFree Running-
RFQ
L3532-2GX2.0DSLTL#410.119"0.172"2-562-56UNCScrew Locking-
RFQ
M3532-2GX1.0DTL#410.119"0.086"2-562-56UNCFree Running-
RFQ
N3532-2GX1.5DTL#410.119"0.129"2-562-56UNCFree Running-
RFQ
O3532-2GX2.0DTL#410.119"0.172"2-562-56UNCFree Running-
RFQ
P3532-2GX1.5DSLTL#410.119"0.129"2-562-56UNCScrew Locking-
RFQ
Q3532-2GX1.0DSLTL#410.119"0.086"2-562-56UNCScrew Locking-
RFQ
R3532-8GX1.0DSLTL11/64"0.220"0.164"8-328-32UNCScrew Locking-
RFQ
S3532-8GX1.5DTL11/64"0.220"0.246"8-328-32UNCFree Running-
RFQ
T3532-8GX2.0DTL11/64"0.220"0.328"8-328-32UNCFree Running-
RFQ
U3532-8GX1.5DSLTL11/64"0.220"0.246"8-328-32UNCScrew Locking-
RFQ
V3532-8GX1.0DTL11/64"0.220"0.164"8-328-32UNCFree Running-
RFQ
W3532-8GX2.0DSLTL11/64"0.220"0.328"8-328-32UNCScrew Locking-
RFQ
X3534-10GX2.0DTL13/64"0.256"0.38"10-3210-32UNFFree Running-
RFQ
Y3532-10GX2.0DTL13/64"0.259"0.38"10-2410-24UNCFree Running-
RFQ
See more

Helical Thread Repair Inserts

Helical thread repair inserts are designed to repair worn threads inside tapped holes. They provide reliable threading in metals, composites, wood or similar materials. Raptor Supplies offers a wide range of thread repair inserts by Heli-Coil, Powercoil and Chrislynn. They are ideal for the automotive, electronics, aerospace, shipbuilding & power generation industries and are used for repairing, recreating or reinforcing stripped bolt / screw threads to withstands higher torque.

Frequently Asked Questions

What are the four basic helical coil designs?

  • Tanged free-running coils: They feature a stainless steel coil for preventing corrosion and can be used for rapid repair of damaged threads. They adhere to military and aerospace standards.
  • Tang-free free-running coils: They are identical to tanged free-running coils, but have no tang at the bottom. They feature a unique insert-driven notch for screw-in installation and remove the need to detach the tang before inserting the bolt.
  • Tanged screw lock coils: These helical coils feature a straight segment in the coil that is flexed outward, producing pressure on the bolt and retaining torque to ensure the bolt's position. They are designed to maximise the contact area by applying pressure between the flanks of the bolt thread.
  • Tang-free screw lock coils: These have a similar design as tanged screw lock helical coils, but instead of a tang, they employ a driving notch for installation.

Why are some thread inserts larger in diameter than the tapped hole before installation?

Some thread inserts have a slightly larger diameter than the diameter of the tapped hole before installation, as the installation tool decreases the leading coil's diameter when it applies torque to the insert's prong / tang for easy installation. Once the threaded insert is installed, it acts like a spring and expands outward onto the material for strong anchoring.

How to choose the length of a helical insert?

The helical insert length should be at least as long as the desired screw diameter. Users may also choose inserts having longer lengths for increased strength. The exact insert length can vary, depending upon the application & the material. Materials like steel do not need long inserts, but for soft materials like aluminium, a longer insert is preferred.

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.

We are here to help!

Looking for a part not listed here?

Chat with us now

Explore More