Free Running Helical Inserts

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Free running inserts are designed to make threads or repair worn threads inside tapped holes. They are ideal for providing reliable threading in metals, composites, wood & similar...Read more

CHRISLYNN -

2 1/4"-8 Grade 304 Stainless Steel Free Running Helical Inserts

StyleModelInsert LengthTang TypeThread TypeThread DirectionThread SizeMaterialPrice
A83310-1.02 1/4"Tanged-Right Hand2 1/4"-8Stainless Steel-
RFQ
B83310-1.53 3/8"TangedCoarseRight Hand2 1/4"-8Stainless Steel€185.69
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1/2"-13 Grade 304 Stainless Steel Free Running Helical Inserts

StyleModelInsert LengthFree Coil Dia.Tang TypeThread TypeThread DirectionTensile StrengthHardnessPricePkg. Qty.
A844241 1/2"-Tanged-Right Hand---50
RFQ
A843241 1/4"-Tanged-Right Hand---50
RFQ
A842241"-Tanged-Right Hand---50
RFQ
BA1185-8CN10001"0.61"TangedCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€278.10100
A840241/2"-Tanged-Right Hand---50
RFQ
BA1185-8CN5001/2"0.61"TangedCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€167.64100
A841243/4"-Tanged-Right Hand---50
RFQ
CR1185-83/4"0.61"TangedCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€8.366
BA1185-8CN7503/4"0.61"TangedCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€225.40100
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7/16"-20 Grade 304 Stainless Steel Free Running Helical Inserts

StyleModelInsert LengthFree Coil Dia.Tang TypeThread TypeThread DirectionTensile StrengthHardnessPricePkg. Qty.
A841230.656"-Tanged-Right Hand---50
RFQ
BR1191-70.656"0.537"TangedFineRight Hand200000 psi to 250000 psiRockwell C43-C50€6.446
A844231 5/16"-Tanged-Right Hand---50
RFQ
A843231.094"-Tanged-Right Hand---50
RFQ
A842237/8"-Tanged-Right Hand---50
RFQ
A840237/16"-Tanged-Right Hand---50
RFQ
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7/16"-14 Grade 304 Stainless Steel Free Running Helical Inserts

StyleModelInsert LengthFree Coil Dia.Tang TypeThread TypeThread DirectionTensile StrengthHardnessPricePkg. Qty.
A841220.656"-Tanged-Right Hand---50
RFQ
BR1185-70.656"0.539"TangedCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€6.236
A844221 5/16"-Tanged-Right Hand---50
RFQ
A843221.094"-Tanged-Right Hand---50
RFQ
A842227/8"-Tanged-Right Hand---50
RFQ
A840227/16"-Tanged-Right Hand---50
RFQ
CA1185-7CN4387/16"0.539"TangedCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€147.22100
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3/8"-16 Grade 304 Stainless Steel Free Running Helical Inserts

StyleModelInsert LengthFree Coil Dia.Tang TypeThread TypeThread DirectionTensile StrengthHardnessPricePkg. Qty.
A844201 1/8"-Tanged-Right Hand---100
RFQ
A842203/4"-Tanged-Right Hand---100
RFQ
BA1185-6CN7503/4"0.462"TangedCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€207.45100
A840203/8"-Tanged-Right Hand---100
RFQ
BA1185-6CN3753/8"0.462"TangedCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€118.33100
A841209/16"-Tanged-Right Hand---100
RFQ
CR1185-69/16"0.462"TangedCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€10.7412
BA1185-6CN5629/16"0.462"TangedCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€135.80100
A8432015/16"-Tanged-Right Hand---100
RFQ
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5/16"-18 Grade 304 Stainless Steel Free Running Helical Inserts

StyleModelInsert LengthFree Coil Dia.Tang TypeThread TypeThread DirectionTensile StrengthHardnessPricePkg. Qty.
A843180.781"-Tanged-Right Hand---100
RFQ
A842185/8"-Tanged-Right Hand---100
RFQ
B1185-5CN625S5/8"0.39"TangedCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€1,014.58500
BA1185-5CN6255/8"0.39"TangedCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€177.22100
A840185/16"-Tanged-Right Hand---100
RFQ
B1185-5CN312S5/16"0.39"TangedCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€654.29500
BA1185-5CN3125/16"0.39"TangedCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€117.52100
A8441815/16"-Tanged-Right Hand---100
RFQ
A8411815/32"-Tanged-Right Hand---100
RFQ
CR1185-515/32"0.39"TangedCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€8.0512
B1185-5CN469S15/32"0.39"TangedCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€761.34500
BA1185-5CN46915/32"0.39"TangedCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€123.83100
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1/4"-20 Grade 304 Stainless Steel Free Running Helical Inserts

StyleModelInsert LengthTang TypeFree Coil Dia.FinishThread TypeThread DirectionTensile StrengthHardnessPricePkg. Qty.
AT1185-4C500S1/2"Tangless8/25"-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€767.111
B1185-4CN500S1/2"Tanged8/25"-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€609.84500
C842161/2"Tanged---Right Hand---100
RFQ
AAT1185-4C5001/2"Tangless8/25"-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€88.81100
BA1185-4CNW5001/2"Tanged8/25"Dry Film LubricantCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€110.44100
BA1185-4CN5001/2"Tanged8/25"-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€112.16100
AT1185-4C250S1/4"Tangless8/25"-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€2,355.281
AAT1185-4C2501/4"Tangless8/25"-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€85.91100
C840161/4"Tanged---Right Hand---100
RFQ
BA1185-4CN2501/4"Tanged8/25"-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€111.65100
B1185-4CN250S1/4"Tanged8/25"-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€1,293.621
BA1185-4CN7503/4"Tanged8/25"-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€136.04100
C844163/4"Tanged---Right Hand---100
RFQ
C841163/8"Tanged---Right Hand---100
RFQ
B1185-4CN375S3/8"Tanged8/25"-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€1,264.931
BA1185-4CNW3753/8"Tanged8/25"Dry Film LubricantCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€126.27100
AR1185-43/8"Tanged8/25"-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€6.4512
AAT1185-4C3753/8"Tangless8/25"-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€92.76100
AT1185-4C375S3/8"Tangless8/25"-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€2,417.391
BA1185-4CN3753/8"Tanged8/25"-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€95.84100
C843165/8"Tanged---Right Hand---100
RFQ
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#10-32 Grade 304 Stainless Steel Free Running Helical Inserts

StyleModelInsert LengthTang TypeFree Coil Dia.FinishThread TypeThread DirectionTensile StrengthHardnessPricePkg. Qty.
A1191-3CNW190S0.19"Tanged0.246"Dry Film LubricantFineRight Hand200000 psi to 250000 psiRockwell C43-C50€1,079.901000
AA1191-3CN1900.19"Tanged0.246"-FineRight Hand200000 psi to 250000 psiRockwell C43-C50€96.60100
BT1191-3C190S0.19"Tangless0.246"-FineRight Hand200000 psi to 250000 psiRockwell C43-C50€3,434.481
BAT1191-3C1900.19"Tangless0.246"-FineRight Hand200000 psi to 250000 psiRockwell C43-C50€87.35100
A1191-3CN190S0.19"Tanged0.246"-FineRight Hand200000 psi to 250000 psiRockwell C43-C50€1,110.051
AA1191-3CNW1900.19"Tanged0.246"Dry Film LubricantFineRight Hand200000 psi to 250000 psiRockwell C43-C50€87.43100
C840130.19"Tanged---Right Hand---100
RFQ
BT1191-3C380S0.38"Tangless0.246"-FineRight Hand200000 psi to 250000 psiRockwell C43-C50€2,717.441
BAT1191-3C3800.38"Tangless0.246"-FineRight Hand200000 psi to 250000 psiRockwell C43-C50€101.74100
AA1191-3CNW3800.38"Tanged0.246"Dry Film LubricantFineRight Hand200000 psi to 250000 psiRockwell C43-C50€120.52100
AA1191-3CN3800.38"Tanged0.246"-FineRight Hand200000 psi to 250000 psiRockwell C43-C50€111.74100
A1191-3CN380S0.38"Tanged0.246"-FineRight Hand200000 psi to 250000 psiRockwell C43-C50€1,265.031
C842130.38"Tanged---Right Hand---100
RFQ
AA1191-3CNW5700.57"Tanged0.246"Dry Film LubricantFineRight Hand200000 psi to 250000 psiRockwell C43-C50€151.60100
C844130.57"Tanged---Right Hand---100
RFQ
AA1191-3CN2850.285"Tanged0.246"-FineRight Hand200000 psi to 250000 psiRockwell C43-C50€99.82100
A1191-3CNW285S0.285"Tanged0.246"Dry Film LubricantFineRight Hand200000 psi to 250000 psiRockwell C43-C50€1,367.011000
AA1191-3CNW2850.285"Tanged0.246"Dry Film LubricantFineRight Hand200000 psi to 250000 psiRockwell C43-C50€116.16100
C841130.285"Tanged---Right Hand---100
RFQ
BAT1191-3C2850.285"Tangless0.246"-FineRight Hand200000 psi to 250000 psiRockwell C43-C50€82.09100
A1191-3CN285S0.285"Tanged0.246"-FineRight Hand200000 psi to 250000 psiRockwell C43-C50€1,261.561000
BT1191-3C285S0.285"Tangless0.246"-FineRight Hand200000 psi to 250000 psiRockwell C43-C50€2,504.681
BR1191-30.285"Tanged0.246"-FineRight Hand200000 psi to 250000 psiRockwell C43-C50€6.6512
C843130.475"Tanged---Right Hand---100
RFQ
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#10-24 Grade 304 Stainless Steel Free Running Helical Inserts

StyleModelInsert LengthFree Coil Dia.Tang TypeFinishThread TypeThread DirectionTensile StrengthHardnessPricePkg. Qty.
A1185-3CN190S0.19"0.251"Tanged-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€1,097.041
BT1185-3C190S0.19"0.251"Tangless-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€671.631000
AA1185-3CNW1900.19"0.251"TangedDry Film LubricantCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€109.05100
BAT1185-3C1900.19"0.253"Tangless-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€80.94100
C840120.19"-Tanged--Right Hand---100
RFQ
AA1185-3CN1900.19"0.251"Tanged-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€102.88100
A1185-3CN380S0.38"0.251"Tanged-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€1,221.321
BAT1185-3C3800.38"0.253"Tangless-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€99.37100
AA1185-3CN3800.38"0.251"Tanged-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€106.56100
BT1185-3C380S0.38"0.251"Tangless-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€2,084.851000
C842120.38"-Tanged--Right Hand---100
RFQ
C844120.57"-Tanged--Right Hand---100
RFQ
AA1185-3CN2850.285"0.251"Tanged-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€100.18100
AA1185-3CNW2850.285"0.251"TangedDry Film LubricantCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€103.37100
BAT1185-3C2850.285"0.253"Tangless-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€91.05100
A1185-3CN285S0.285"0.251"Tanged-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€1,112.541000
BR1185-30.285"0.251"Tanged-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€7.2712
BT1185-3C285S0.285"0.251"Tangless-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€2,369.291
C841120.285"-Tanged--Right Hand---100
RFQ
C843120.475"-Tanged--Right Hand---100
RFQ
StyleModelInsert LengthTang TypeThread DirectionThread SizeMaterialPkg. Qty.
A840090.138"TangedRight Hand#6-40Stainless Steel100
RFQ
A841090.207"TangedRight Hand#6-40Stainless Steel100
RFQ
A842090.276"TangedRight Hand#6-40Stainless Steel100
RFQ
A843090.345"TangedRight Hand#6-40Stainless Steel100
RFQ
A844090.414"TangedRight Hand#6-40Stainless Steel100
RFQ
StyleModelInsert LengthTang TypeThread DirectionThread SizeMaterial
A83314-1.02 3/4"TangedRight Hand2 3/4"-8Stainless Steel
RFQ
A83314-1.54 1/8"TangedRight Hand2 3/4"-8Stainless Steel
RFQ
StyleModelInsert LengthTang TypeThread DirectionThread SizeMaterialPkg. Qty.
A8407718 mmTangedRight HandM18 x 2Stainless Steel15
RFQ
A8417727 mmTangedRight HandM18 x 2Stainless Steel15
RFQ
A8427736 mmTangedRight HandM18 x 2Stainless Steel15
RFQ
A8437745 mmTangedRight HandM18 x 2Stainless Steel15
RFQ
A8447754 mmTangedRight HandM18 x 2Stainless Steel15
RFQ
CHRISLYNN -

3-8 Grade 304 Stainless Steel Free Running Helical Inserts

StyleModelInsert LengthTang TypeThread TypeThread DirectionThread SizeMaterialPrice
A83316-1.03"Tanged-Right Hand#3-8Stainless Steel-
RFQ
B83316-1.54 1/2"TangedCoarseRight Hand#3-8Stainless Steel€411.19
CHRISLYNN -

2 1/8"-8 Grade 304 Stainless Steel Free Running Helical Inserts

StyleModelInsert LengthTang TypeThread TypeThread DirectionThread SizeMaterialPrice
A83309-1.02 1/8"Tanged-Right Hand2 1/8"-8Stainless Steel-
RFQ
B83309-1.53.188"TangedCoarseRight Hand2 1/8"-8Stainless Steel€154.48
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9/16"-12 Grade 304 Stainless Steel Free Running Helical Inserts

StyleModelInsert LengthFree Coil Dia.Tang TypeThread TypeThread DirectionTensile StrengthHardnessPricePkg. Qty.
AR1185-90.844"0.682"TangedCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€15.486
B841270.844"-Tanged-Right Hand---50
RFQ
B842271 1/8"-Tanged-Right Hand---50
RFQ
B843271.406"-Tanged-Right Hand---50
RFQ
B844271.688"-Tanged-Right Hand---50
RFQ
B840279/16"-Tanged-Right Hand---50
RFQ
CHRISLYNN -

1 7/8"-8 Grade 304 Stainless Steel Free Running Helical Inserts

StyleModelInsert LengthTang TypeThread TypeThread DirectionThread SizeMaterialPrice
A83307-1.01 7/8"Tanged-Right Hand1 7/8"-8Stainless Steel-
RFQ
B83307-1.52.813"TangedCoarseRight Hand1 7/8"-8Stainless Steel€92.68
A83307-2.03 3/4"Tanged-Right Hand1 7/8"-8Stainless Steel-
RFQ
CHRISLYNN -

1 5/8"-8 Grade 304 Stainless Steel Free Running Helical Inserts

StyleModelInsert LengthTang TypeThread TypeThread DirectionThread SizeMaterialPrice
A83305-1.01 5/8"Tanged-Right Hand1 5/8"-8Stainless Steel-
RFQ
B83305-1.52.438"TangedCoarseRight Hand1 5/8"-8Stainless Steel€74.33
A83305-2.03 1/4"Tanged-Right Hand1 5/8"-8Stainless Steel-
RFQ
CHRISLYNN -

1 1/2"-8 Grade 304 Stainless Steel Free Running Helical Inserts

StyleModelInsert LengthTang TypeThread TypeThread DirectionThread SizeMaterialPrice
A83304-1.01 1/2"Tanged-Right Hand1 1/2"-8Stainless Steel-
RFQ
B83304-1.52 1/4"TangedCoarseRight Hand1 1/2"-8Stainless Steel€56.76
A83304-2.03"Tanged-Right Hand1 1/2"-8Stainless Steel-
RFQ
CHRISLYNN -

1 3/8"-8 Grade 304 Stainless Steel Free Running Helical Inserts

StyleModelInsert LengthTang TypeThread TypeThread DirectionThread SizeMaterialPrice
A83303-1.01 3/8"Tanged-Right Hand1 3/8"-8Stainless Steel-
RFQ
A83303-2.02 3/4"Tanged-Right Hand1 3/8"-8Stainless Steel-
RFQ
B83303-1.52.063"TangedCoarseRight Hand1 3/8"-8Stainless Steel€57.81
StyleModelInsert LengthTang TypeThread DirectionThread SizeMaterialPkg. Qty.
A8408724 mmTangedRight HandM24 x 3Stainless Steel15
RFQ
A8418736 mmTangedRight HandM24 x 3Stainless Steel15
RFQ
A8428748 mmTangedRight HandM24 x 3Stainless Steel15
RFQ
A8438760 mmTangedRight HandM24 x 3Stainless Steel15
RFQ
A8448772 mmTangedRight HandM24 x 3Stainless Steel15
RFQ
StyleModelInsert LengthTang TypeThread DirectionThread SizeMaterialPkg. Qty.
A8408624 mmTangedRight HandM24 x 2Stainless Steel15
RFQ
A8418636 mmTangedRight HandM24 x 2Stainless Steel15
RFQ
A8428648 mmTangedRight HandM24 x 2Stainless Steel15
RFQ
A8438660 mmTangedRight HandM24 x 2Stainless Steel15
RFQ
A8448672 mmTangedRight HandM24 x 2Stainless Steel15
RFQ
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Free Running Helical Inserts

Free running inserts are designed to make threads or repair worn threads inside tapped holes. They are ideal for providing reliable threading in metals, composites, wood & similar materials. These inserts are usually larger in diameter than tapped holes and are compressed while being inserted, thereby providing maximum surface contact area. Raptor Supplies offers a wide range of free running inserts in Metric, UNC and UNF thread types from Chrislynn and Heli-Coil.

Frequently Asked Questions

How to install helical inserts?

  • Drill a hole using the suggested drill bit size.
  • Tap the hole and screw the insert into the installation tool. The prong must be properly engaged in the driving contour of the tool.
  • Using the installation tool, thread the insert into the hole. Install the insert a quarter to half turn below the hole's surface.
  • If your insert has a prong, remove it with a punch or break-off tool. This allows the screw to fully enter the insert.

Where are helical inserts without prongs used?

These inserts are frequently used where debris could cause damage because there is no prong to break off and retrieve. They have coils that expand after installation to secure the insert.