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Thread Inserts

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Thread inserts are suitable for installing threaded fasteners in soft materials, thin materials or materials with a stripped & threaded hole. They are ideal for automobile, aerospace and...Read more

HELICOIL -

High Speed Steel Thread Inserts

HELICOIL 328-8A
HELICOIL 328-4B
StyleModelThread SizeOverall LengthDrill SizeFinishShank Dia.Number Of FlutesThread DirectionTap StylePrice
A328-81/2"-14-45/64"Bright57/64"5Right HandPipe€332.12
B328-41/4"-182 1/2"-Uncoated11/16"4Right HandPipe€102.04
A328-21/8"-27--Uncoated9/16"4Right HandPipe€91.61
A328-63/8"-183 1/8"9/16"Uncoated11/16"4Right HandPipe€167.44
CHRISLYNN -

Grade 12L14 Steel Thread Inserts

CHRISLYNN 9329-006A
CHRISLYNN 9335-10B
StyleModelDrill SizeInternal Thread SizeMaterial
A9329-006#7#6-32Steel
RFQ
A9329-141 7/64"7/8"-9Steel
RFQ
A9329-14141 7/64"7/8"-14Steel
RFQ
A9329-161 9/32"1"-8Steel
RFQ
A9329-16141 9/32"1"-14Steel
RFQ
A9329-3325/16"#10-32Steel
RFQ
A9329-35/16"#10-24Steel
RFQ
A9329-0045/32"#4-40Steel
RFQ
A9329-127/8"3/4"-10Steel
RFQ
A9329-12167/8"3/4"-16Steel
RFQ
B9335-107/8"5/8"-11Steel
RFQ
B9329-141211/16"M14 x 1.25Steel
RFQ
B9329-140611/16"M14 x 1.25Steel
RFQ
B9329-140811/16"M14 x 1.25Steel
RFQ
B9750-1416.5 mmM14 x 1.25Steel
RFQ
B9335-617/32"3/8"-16Steel
RFQ
A9329-717/32"7/16"-14Steel
RFQ
A9329-72017/32"7/16"-20Steel
RFQ
A9329-821/32"1/2"-13Steel
RFQ
A9329-80121/32"1/2"-13Steel
RFQ
A9329-82021/32"1/2"-20Steel
RFQ
A9329-921/32"9/16"-12Steel
RFQ
A9329-91821/32"9/16"-18Steel
RFQ
A9329-423/64"1/4"-20Steel
RFQ
A9329-42823/64"1/4"-28Steel
RFQ
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CHRISLYNN -

Grade 304 Stainless Steel Thread Inserts

CHRISLYNN 83100A
CHRISLYNN 83735B
StyleModelThread SizeDrill SizeNumber Of PiecesMaterialPricePkg. Qty.
A83100#2-563/32"12Stainless Steel-12
RFQ
A83102#3-48#3612Stainless Steel-12
RFQ
A83103#3-56#3712Stainless Steel-12
RFQ
A83104#4-40#3112Stainless Steel-12
RFQ
A83105#4-48#3112Stainless Steel-12
RFQ
A83106#5-40#2912Stainless Steel-12
RFQ
A83108#6-32#2512Stainless Steel-12
RFQ
A83109#6-40#2512Stainless Steel-12
RFQ
A83110#8-3211/64"12Stainless Steel-12
RFQ
A83111#8-36#1712Stainless Steel-12
RFQ
A83112#10-2413/64"12Stainless Steel-12
RFQ
A83113#10-3213/64"12Stainless Steel-12
RFQ
A83114#12-2415/64"12Stainless Steel-12
RFQ
A83115#12-2815/64"12Stainless Steel-12
RFQ
A831441 1/2"-61 17/32"1Stainless Steel-1
RFQ
A831451 1/2"-121 17/32"1Stainless Steel-1
RFQ
A831401 1/4"-71 9/32"1Stainless Steel-1
RFQ
A831411 1/4"-121 9/32"1Stainless Steel-1
RFQ
A831381 1/8"-71 5/32"1Stainless Steel-1
RFQ
A831391 1/8"-121 5/32"1Stainless Steel-1
RFQ
A831421 3/8"-61 13/32"1Stainless Steel-1
RFQ
A831431 3/8"-121 13/32"1Stainless Steel-1
RFQ
A831351"-81 1/32"1Stainless Steel-1
RFQ
B837351"-81 1/32"4Stainless Steel€116.584
B836361"-101 1/32"4Stainless Steel€101.254
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CHRISLYNN -

Grade 303 Stainless Steel Thread Inserts

CHRISLYNN 76283A
CHRISLYNN 9303-004B
CHRISLYNN 76543C
StyleModelThread SizeDrill SizeInternal Thread SizeMaterial
A76283#8-32#29#2-56Stainless Steel
RFQ
A64906#10-24, #10-32, 1/2"-13, 1/2"-20, 1/4"-20, 1/4"-28, 3/8"-16, 3/8"-24, 5/16"-18, 5/16"-24, 7/16"-14, 7/16"-20--Stainless Steel
RFQ
A64901#10-24, #10-32, 1/2"-13, 1/2"-20, 1/4"-20, 1/4"-28, 3/8"-16, 3/8"-24, 5/16"-18, 5/16"-24, 7/16"-14, 7/16"-20--Stainless Steel
RFQ
B9303-004#10-325/32"#4-40Stainless Steel
RFQ
A76284#10-32#20#4-40Stainless Steel
RFQ
A76285#12-283/16"#6-32Stainless Steel
RFQ
A763431 1/2"-121 7/16"1"-8Stainless Steel
RFQ
C765431 1/2"-121 5/16"#1-12Stainless Steel
RFQ
A763101 1/4"-121 3/16"7/8"-9Stainless Steel
RFQ
C765411 1/4"-121 3/16"3/4"-16Stainless Steel
RFQ
A763411 1/4"-121 3/16"3/4"-10Stainless Steel
RFQ
A765101 1/4"-121 3/16"7/8"-14Stainless Steel
RFQ
A763091 1/8"-121 1/16"3/4"-10Stainless Steel
RFQ
A765091 1/8"-121 1/16"3/4"-16Stainless Steel
RFQ
A763111 3/8"-121 5/16"1"-8Stainless Steel
RFQ
C765421 3/8"-121 5/16"7/8"-14Stainless Steel
RFQ
A763421 3/8"-121 5/16"7/8"-9Stainless Steel
RFQ
A765111 3/8"-121 5/16"#1-12Stainless Steel
RFQ
B9303-121"-87/8"3/4"-10Stainless Steel
RFQ
A763401"-1215/16"5/8"-11Stainless Steel
RFQ
C765401"-1215/16"5/8"-18Stainless Steel
RFQ
A763341/2"-1329/64"1/4"-20Stainless Steel
RFQ
B9303-51/2"-1327/64"5/16"-18Stainless Steel
RFQ
A763031/2"-1329/64"5/16"-18Stainless Steel
RFQ
B9303-5241/2"-1327/64"5/16"-24Stainless Steel
RFQ
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-

Brass Thread Inserts

170-006-BRA
270-006-BRB
9400-5C
1GUC9D
1GUC5E
1GUC6F
1GUC7G
1GUD1H
1GUC8I
370-332-BRJ
StyleModelDrill SizeInternal Thread SizeThread TypeFinsTypeMaterialPricePkg. Qty.
A170-006-BR#5#6-32Coarse1-Brass€24.8350
B270-006-BR#5#6-32Coarse2-Brass€29.1250
C9400-51/2"5/16"-18---Brass-1
RFQ
C9400-61/2"3/8"-16---Brass-1
RFQ
C9400-M81/2"M8 x 1.25---Brass-1
RFQ
C9400-5241/2"5/16"-24---Brass-1
RFQ
C9400-6241/2"3/8"-24---Brass-1
RFQ
C9400-0081/4"#8-32---Brass-1
RFQ
D1GUC91/4"#10-32Coarse-Reverse SlotBrass€20.9825
C9400-M41/4"M4 x 0.7---Brass-1
RFQ
C9400-0061/4"#6-32---Brass-1
RFQ
C9400-0041/4"#4-40---Brass-1
RFQ
C9400-M31/4"M3 x 0.5---Brass-1
RFQ
E1GUC51/8"#2-56Coarse-Reverse SlotBrass€16.0650
C9400-4283/8"1/4"-28---Brass-1
RFQ
C9400-33/8"#10-24---Brass-1
RFQ
C9400-M63/8"M6 x 1---Brass-1
RFQ
C9400-3323/8"#10-32---Brass-1
RFQ
C9400-43/8"1/4"-20---Brass-1
RFQ
C9400-M53/8"M5 x 0.8---Brass-1
RFQ
F1GUC63/16"#4-40Coarse-Reverse SlotBrass€15.2250
G1GUC73/16"#6-32Coarse-Reverse SlotBrass€16.7150
H1GUD15/16"1/4"-20Coarse-Reverse SlotBrass€19.9525
I1GUC87/32"#8-32Coarse-Reverse SlotBrass€19.0550
J370-332-BR11/32"#10-32Fine3-Brass€49.7550
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E-Z LOK -

Grade 18-8 Stainless Steel Thread Inserts

Grade 18-8 stainless steel thread inserts, also known as flanged threaded inserts, are small cylindrical metal fasteners used to reinforce and strengthen threaded holes in various materials such as aluminium, magnesium or plastic.

E-Z LOK 260-332CRA
E-Z LOK 240-332CRB
E-Z LOK 240-002CRC
E-Z LOK 260-002CRD
E-Z LOK 240-5CRE
E-Z LOK 240-006CRF
E-Z LOK 260-006CRG
E-Z LOK 260-4CRH
E-Z LOK 240-4CRI
E-Z LOK 240-004CRJ
E-Z LOK 260-004CRK
E-Z LOK 240-6CRL
E-Z LOK 260-008CRM
E-Z LOK 240-008CRN
StyleModelDrill SizeTypeThread TypeMaterialPricePkg. Qty.
A260-332CR1/4"FlangeCoarseStainless Steel€19.7410
B240-332CR1/4"FlushCoarseStainless Steel€20.1310
C240-002CR1/8"FlushCoarseStainless Steel€17.7510
D260-002CR1/8"FlangeCoarseStainless Steel€23.6925
E240-5CR3/8"FlushCoarseStainless Steel€31.0610
F240-006CR3/16"FlushCoarseStainless Steel€9.9410
G260-006CR3/16"FlangeCoarseStainless Steel€13.6710
H260-4CR5/16"FlangeCoarseStainless Steel€19.205
I240-4CR5/16"FlushCoarseStainless Steel€24.4010
J240-004CR5/32"FlushCoarseStainless Steel€8.7110
K260-004CR5/32"FlangeCoarseStainless Steel€15.9110
L240-6CR7/16"FlushCoarseStainless Steel€19.215
M260-008CR7/32"FlangeCoarseStainless Steel€16.6210
N240-008CR7/32"FlushCoarseStainless Steel€16.1510
CHRISLYNN -

Grade C1215 Carbon Steel Thread Inserts

CHRISLYNN 64900A
CHRISLYNN 66113B
CHRISLYNN 65943C
CHRISLYNN 66124D
StyleModelThread SizeDrill SizeInternal Thread SizeMaterial
A64900#10-24, #10-32, 1/2"-13, 1/2"-20, 1/4"-20, 1/4"-28, 3/8"-16, 3/8"-24, 5/16"-18, 5/16"-24, 7/16"-14, 7/16"-20--Carbon Steel
RFQ
A64905#10-24, #10-32, 1/2"-13, 1/2"-20, 1/4"-20, 1/4"-28, 3/8"-16, 3/8"-24, 5/16"-18, 5/16"-24, 7/16"-14, 7/16"-20--Carbon Steel
RFQ
B661131 1/2"-121 7/16"1 1/8"-12Carbon Steel
RFQ
C659431 1/2"-121 7/16"1"-8Carbon Steel
RFQ
C659131 1/2"-121 7/16"1 1/8"-7Carbon Steel
RFQ
B661431 1/2"-121 5/16"#1-12Carbon Steel
RFQ
C659101 1/4"-121 3/16"7/8"-9Carbon Steel
RFQ
B661101 1/4"-121 3/16"7/8"-14Carbon Steel
RFQ
B661411 1/4"-121 3/16"3/4"-16Carbon Steel
RFQ
C659411 1/4"-121 3/16"3/4"-10Carbon Steel
RFQ
C659091 1/8"-121 1/16"3/4"-10Carbon Steel
RFQ
B661091 1/8"-121 1/16"3/4"-16Carbon Steel
RFQ
C659421 3/8"-121 5/16"7/8"-9Carbon Steel
RFQ
B661421 3/8"-121 5/16"7/8"-14Carbon Steel
RFQ
C659111 3/8"-121 5/16"1"-8Carbon Steel
RFQ
B661111 3/8"-121 5/16"#1-12Carbon Steel
RFQ
B661121 3/8"-121 5/16"1"-14Carbon Steel
RFQ
C659141 5/8"-121 9/16"1 1/4"-7Carbon Steel
RFQ
B661141 5/8"-121 9/16"1 1/4"-12Carbon Steel
RFQ
C659161 7/8"-121 13/16"1 1/2"-6Carbon Steel
RFQ
B661161 7/8"-121 13/16"1 1/2"-12Carbon Steel
RFQ
C659401"-1215/16"5/8"-11Carbon Steel
RFQ
B661401"-1215/16"5/8"-18Carbon Steel
RFQ
D661241/2"-1329/64"3/8"-24Carbon Steel
RFQ
B661031/2"-1329/64"5/16"-24Carbon Steel
RFQ
See more
GRAINGER -

Insert, 2-56 Thread Size, 5/32 In Insert Lg., Brass

Insert, 2-56 Thread Size, 5/32 In Insert Lg., Brass
ModelItemPrice (ex. VAT)
1GRL9CQ2AAL€14.65
GRAINGER -

Insert, 2-56 Thread Size, 5/32 In Insert Lg., Brass, Plain

Insert, 2-56 Thread Size, 5/32 In Insert Lg., Brass, Plain
ModelItemPrice (ex. VAT)
4KXX8CQ2AAM€119.24
GRAINGER -

Press Insert, 0-80 Thread Size, 1/8 In Insert Lg., Gr. C3604, Brass, Plain

Press Insert, 0-80 Thread Size, 1/8 In Insert Lg., Gr. C3604, Brass, Plain
ModelItemPrice (ex. VAT)
240-000-BRCQ3VRX€24.31
GRAINGER -

Insert, 4-40 Thread Size, 9/64 In Insert Lg., Brass, Plain

Insert, 4-40 Thread Size, 9/64 In Insert Lg., Brass, Plain
ModelItemPrice (ex. VAT)
4KXZ3CQ2AAV€115.10
GRAINGER -

Insert, 4-40 Thread Size, 9/64 In Insert Lg., Brass

Insert, 4-40 Thread Size, 9/64 In Insert Lg., Brass
ModelItemPrice (ex. VAT)
1GML6CQ2AAU€15.84
GRAINGER -

Insert, 4-40 Thread Size, 7/32 In Insert Lg., Brass, Plain

Insert, 4-40 Thread Size, 7/32 In Insert Lg., Brass, Plain
ModelItemPrice (ex. VAT)
4KXV2CQ2AAT€132.66
GRAINGER -

Insert, 4-40 Thread Size, 15/64 In Insert Lg., Brass, Plain

Insert, 4-40 Thread Size, 15/64 In Insert Lg., Brass, Plain
ModelItemPrice (ex. VAT)
4KXX9CQ2AAQ€127.61
GRAINGER -

Insert, 4-40 Thread Size, 15/64 In Insert Lg., Brass

Insert, 4-40 Thread Size, 15/64 In Insert Lg., Brass
ModelItemPrice (ex. VAT)
1GTL1CQ2AAP€16.83
GRAINGER -

Insert, 2-56 Thread Size, 3/16 In Insert Lg., Brass, Plain

Insert, 2-56 Thread Size, 3/16 In Insert Lg., Brass, Plain
ModelItemPrice (ex. VAT)
4KXW9CQ2AAK€140.38
GRAINGER -

Insert, 6-32 Thread Size, 5/16 In Insert Lg., Brass, Plain

Insert, 6-32 Thread Size, 5/16 In Insert Lg., Brass, Plain
ModelItemPrice (ex. VAT)
4KXX6CQ2AAZ€186.70
GRAINGER -

Insert, 5/16 In - 18 Thread Size, 9/16 In Insert Lg., Brass

Insert, 5/16 In - 18 Thread Size, 9/16 In Insert Lg., Brass
ModelItemPrice (ex. VAT)
1GRL2CQ2ADW€22.06
GRAINGER -

Insert, 2-56 Thread Size, 3/16 In Insert Lg., Brass, Plain

Insert, 2-56 Thread Size, 3/16 In Insert Lg., Brass, Plain
ModelItemPrice (ex. VAT)
4KXV1CQ2AAH€123.98
GRAINGER -

Insert, 3/8 In - 16 Thread Size, 1/2 In Insert Lg., Brass

Insert, 3/8 In - 16 Thread Size, 1/2 In Insert Lg., Brass
ModelItemPrice (ex. VAT)
1GUA1CQ2ADU€24.61
GRAINGER -

Insert, 2-56 Thread Size, 1/8 In Insert Lg., Brass, 100 Pk

Insert, 2-56 Thread Size, 1/8 In Insert Lg., Brass, 100 Pk
ModelItemPrice (ex. VAT)
1GML5CQ2AAF€14.81
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Thread Inserts

Thread inserts are suitable for installing threaded fasteners in soft materials, thin materials or materials with a stripped & threaded hole. They are ideal for automobile, aerospace and maintenance applications. Raptor Supplies offers these thread inserts from brands like Grainger, Chrislynn, Helicoil, E-Z Lok & Walter. They provide more strength, versatility & resilient operation than traditional threaded holes.

Frequently Asked Questions

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

Selected 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 being installed into the insert. Materials like steel do not need long inserts. In contrast, for soft materials like aluminium, a longer insert is preferred.

How to install a helical thread insert?

  • Drill a hole according to the length of the insert / screw / bolt using the suggested drill bit size.
  • Thread the drilled hole using a tap (sold separately), then wind the insert into the hole using an installation tool.
  • Use a prong break-off tool or punch to remove the prong and allow free passage of the fastener.

How to install a key-locking thread insert?

  • Drill a hole according to the required application.
  • Tap the drilled hole, then 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.

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