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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 -

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

CHRISLYNN 83307-1.0A
CHRISLYNN 83307-1.5B
StyleModelInsert LengthTang TypeFinishThread TypeThread DirectionThread SizeMaterialPrice
A83307-1.01 7/8"Tanged--Right Hand1 7/8"-8Stainless Steel-
RFQ
B83307-1.52.813"TangedPlain8 UNRight Hand1 7/8"-8Stainless Steel€96.62
A83307-2.03 3/4"Tanged--Right Hand1 7/8"-8Stainless Steel-
RFQ
CHRISLYNN -

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

CHRISLYNN 83309-1.0A
CHRISLYNN 83309-1.5B
StyleModelInsert LengthTang TypeFinishThread TypeThread DirectionThread SizeMaterialPrice
A83309-1.02 1/8"Tanged--Right Hand2 1/8"-8Stainless Steel-
RFQ
B83309-1.53.188"TangedPlain8 UNRight Hand2 1/8"-8Stainless Steel€161.08
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M7 x 1 Grade 304 Stainless Steel Free Running Helical Inserts

84058A
A1084-7CN140B
StyleModelInsert LengthFree Coil Dia.Tang TypeFinishThread TypeThread DirectionTensile StrengthHardnessPricePkg. Qty.
A840587 mm-Tanged--Right Hand---100
RFQ
A8415810.5 mm-Tanged--Right Hand---100
RFQ
A8425814 mm-Tanged--Right Hand---100
RFQ
BA1084-7CN14014 mm8.925 mmTangedPlainCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€204.14100
A8435817.5 mm-Tanged--Right Hand---100
RFQ
BA1084-7CN17517.5 mm8.925 mmTangedPlainCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€240.37100
A8445821 mm-Tanged--Right Hand---100
RFQ
CHRISLYNN -

M3.5 x 0.6 Grade 304 Stainless Steel Free Running Helical Inserts

CHRISLYNN 84054A
StyleModelInsert LengthTang TypeThread DirectionThread SizeMaterialPkg. Qty.
A840543.5 mmTangedRight HandM3.5 x 0.6Stainless Steel100
RFQ
A841545.3 mmTangedRight HandM3.5 x 0.6Stainless Steel100
RFQ
A842547 mmTangedRight HandM3.5 x 0.6Stainless Steel100
RFQ
A843548.8 mmTangedRight HandM3.5 x 0.6Stainless Steel100
RFQ
A8445410.5 mmTangedRight HandM3.5 x 0.6Stainless Steel100
RFQ
CHRISLYNN -

M12 x 1 Grade 304 Stainless Steel Free Running Helical Inserts

CHRISLYNN 84046A
StyleModelInsert LengthTang TypeThread DirectionThread SizeMaterialPkg. Qty.
A8404612 mmTangedRight HandM12 x 1Stainless Steel50
RFQ
A8414618 mmTangedRight HandM12 x 1Stainless Steel50
RFQ
A8424624 mmTangedRight HandM12 x 1Stainless Steel50
RFQ
A8434630 mmTangedRight HandM12 x 1Stainless Steel50
RFQ
A8444636 mmTangedRight HandM12 x 1Stainless Steel50
RFQ
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1 3/8"-6 Grade 304 Stainless Steel Free Running Helical Inserts

84042A
K1185-22B
StyleModelInsert LengthFree Coil Dia.Tang TypeFinishThread TypeThread DirectionTensile StrengthHardnessPricePkg. Qty.
A840421 3/8"-Tanged--Right Hand---5
RFQ
A842422 3/4"-Tanged--Right Hand---5
RFQ
A841422.062"-Tanged--Right Hand---5
RFQ
BK1185-222.062"1.62"TangedPlainCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€70.701
A843423.438"-Tanged--Right Hand---5
RFQ
A844424 1/8"----Right Hand---5
RFQ
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1 1/8"-7 Grade 304 Stainless Steel Free Running Helical Inserts

84038A
K1185-18B
StyleModelInsert LengthFree Coil Dia.Tang TypeFinishThread TypeThread DirectionTensile StrengthHardnessPricePkg. Qty.
A840381 1/8"-Tanged--Right Hand---5
RFQ
A841381.688"-Tanged--Right Hand---5
RFQ
BK1185-181.688"1.335"TangedPlainCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€59.761
A842382 1/4"-Tanged--Right Hand---5
RFQ
A843382.812"-Tanged--Right Hand---5
RFQ
A844383 3/8"-Tanged--Right Hand---5
RFQ
-

7/8"-14 Grade 304 Stainless Steel Free Running Helical Inserts

84234A
K1191-14B
StyleModelInsert LengthFree Coil Dia.Tang TypeFinishThread TypeThread DirectionTensile StrengthHardnessPricePkg. Qty.
A842341 3/4"-Tanged--Right Hand---15
RFQ
A841341 5/16"-Tanged--Right Hand---15
RFQ
BK1191-141 5/16"1.036"TangedPlainFineRight Hand200000 psi to 250000 psiRockwell C43-C50€31.081
A844342 5/8"-Tanged--Right Hand---15
RFQ
A843342.188"-Tanged--Right Hand---15
RFQ
A840347/8"-Tanged--Right Hand---15
RFQ
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5/8"-18 Grade 304 Stainless Steel Free Running Helical Inserts

84230A
R1191-10B
StyleModelInsert LengthFree Coil Dia.Tang TypeFinishThread TypeThread DirectionTensile StrengthHardnessPricePkg. Qty.
A842301 1/4"-Tanged--Right Hand---50
RFQ
A844301 7/8"-Tanged--Right Hand---50
RFQ
A843301.562"-Tanged--Right Hand---50
RFQ
A840305/8"-Tanged--Right Hand---50
RFQ
A8413015/16"-Tanged--Right Hand---50
RFQ
BR1191-1015/16"0.746"TangedPlainFineRight Hand200000 psi to 250000 psiRockwell C43-C50€88.816
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1/2"-20 Grade 304 Stainless Steel Free Running Helical Inserts

84426A
R1191-8B
StyleModelInsert LengthFree Coil Dia.Tang TypeFinishThread TypeThread DirectionTensile StrengthHardnessPricePkg. Qty.
A844261 1/2"-Tanged--Right Hand---50
RFQ
A843261 1/4"-Tanged--Right Hand---50
RFQ
A842261"-Tanged--Right Hand---50
RFQ
A840261/2"-Tanged--Right Hand---50
RFQ
A841263/4"-Tanged--Right Hand---50
RFQ
BR1191-83/4"0.605"TangedPlainFineRight Hand200000 psi to 250000 psiRockwell C43-C50€43.006
-

3/8"-24 Grade 304 Stainless Steel Free Running Helical Inserts

84421A
R1191-6B
StyleModelInsert LengthFree Coil Dia.Tang TypeFinishThread TypeThread DirectionTensile StrengthHardnessPricePkg. Qty.
A844211 1/8"-Tanged--Right Hand---100
RFQ
A842213/4"-Tanged--Right Hand---100
RFQ
A840213/8"-Tanged--Right Hand---100
RFQ
A841219/16"-Tanged--Right Hand---100
RFQ
BR1191-69/16"0.458"TangedPlainFineRight Hand200000 psi to 250000 psiRockwell C43-C50€42.3612
A8432115/16"-Tanged--Right Hand---100
RFQ
-

1/4"-28 Grade 304 Stainless Steel Free Running Helical Inserts

A1191-4CN500A
84217B
AT1191-4C500C
StyleModelInsert LengthFree Coil Dia.Tang TypeFinishThread TypeThread DirectionTensile StrengthHardnessPricePkg. Qty.
AA1191-4CN5001/2"0.316"TangedPlainFineRight Hand200000 psi to 250000 psiRockwell C43-C50€130.02100
B842171/2"-Tanged--Right Hand---100
RFQ
AA1191-4CNW5001/2"0.316"TangedDry Film LubricantFineRight Hand200000 psi to 250000 psiRockwell C43-C50€166.52100
A1191-4CN500S1/2"0.316"Tanged-FineRight Hand200000 psi to 250000 psiRockwell C43-C50€824.901000
CAT1191-4C5001/2"0.316"TanglessPlainFineRight Hand200000 psi to 250000 psiRockwell C43-C50€102.47100
CT1191-4C500S1/2"0.316"TanglessPlainFineRight Hand200000 psi to 250000 psiRockwell C43-C50€1,203.83500
B840171/4"-Tanged--Right Hand---100
RFQ
A1191-4CNW250S1/4"0.316"TangedDry Film LubricantFineRight Hand200000 psi to 250000 psiRockwell C43-C50€767.361000
AA1191-4CN2501/4"0.326"Tanged-FineRight Hand200000 psi to 250000 psiRockwell C43-C50€114.80100
A1191-4CN250S1/4"0.316"TangedPlainFineRight Hand200000 psi to 250000 psiRockwell C43-C50€1,405.141000
AA1191-4CNW2501/4"0.316"TangedDry Film LubricantFineRight Hand200000 psi to 250000 psiRockwell C43-C50€141.41100
CAT1191-4C2501/4"0.316"TanglessPlainFineRight Hand200000 psi to 250000 psiRockwell C43-C50€88.27100
CT1191-4C250S1/4"0.316"TanglessPlainFineRight Hand200000 psi to 250000 psiRockwell C43-C50€1,092.521000
B844173/4"-Tanged--Right Hand---100
RFQ
B841173/8"-Tanged--Right Hand---100
RFQ
CAT1191-4C3753/8"0.316"TanglessPlainFineRight Hand200000 psi to 250000 psiRockwell C43-C50€97.32100
CT1191-4C375S3/8"0.316"TanglessPlainFineRight Hand200000 psi to 250000 psiRockwell C43-C50€1,644.221000
AA1191-4CNW3753/8"0.316"TangedDry Film LubricantFineRight Hand200000 psi to 250000 psiRockwell C43-C50€158.69100
AA1191-4CN3753/8"0.316"TangedPlainFineRight Hand200000 psi to 250000 psiRockwell C43-C50€101.28100
A1191-4CN375S3/8"0.316"TangedPlainFineRight Hand200000 psi to 250000 psiRockwell C43-C50€1,408.011000
B843175/8"-Tanged--Right Hand---100
RFQ
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#10-24 Grade 304 Stainless Steel Free Running Helical Inserts

84012A
A1185-3CN190B
T1185-3C190SC
StyleModelInsert LengthFree Coil Dia.Tang TypeFinishThread TypeThread DirectionTensile StrengthHardnessPricePkg. Qty.
A840120.19"-Tanged--Right Hand---100
RFQ
BA1185-3CN1900.19"0.251"TangedPlainCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€125.11100
CT1185-3C190S0.19"0.251"TanglessPlainCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€772.361000
CAT1185-3C1900.19"-TanglessPlainCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€100.15100
BA1185-3CNW1900.19"0.251"TangedDry Film LubricantCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€134.94100
B1185-3CN190S0.19"0.251"TangedPlainCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€1,460.301000
CAT1185-3C3800.38"0.253"TanglessPlain-Right Hand200000 psi to 250000 psi-€141.41100
BA1185-3CN3800.38"0.251"TangedPlainCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€130.02100
CT1185-3C380S0.38"0.251"TanglessPlainCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€2,699.091000
A842120.38"-Tanged--Right Hand---100
RFQ
B1185-3CN380S0.38"0.251"TangedPlainCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€1,369.691000
A844120.57"-Tanged--Right Hand---100
RFQ
A841120.285"-Tanged--Right Hand---100
RFQ
B1185-3CN285S0.285"0.251"TangedPlainCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€1,039.851000
CR1185-30.285"0.251"TangedPlainCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€30.9612
BA1185-3CNW2850.285"0.251"TangedDry Film LubricantCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€141.41100
CAT1185-3C2850.285"0.253"TanglessPlainCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€128.17100
CT1185-3C285S0.285"0.251"TanglessPlainCoarse-200000 psi to 250000 psiRockwell C43-C50€3,388.231000
BA1185-3CN2850.285"0.251"TangedPlainCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€93.65100
A843120.475"-Tanged--Right Hand---100
RFQ
CHRISLYNN -

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

CHRISLYNN 83312-1.0A
CHRISLYNN 83312-1.5B
StyleModelInsert LengthTang TypeFinishThread TypeThread DirectionThread SizeMaterialPrice
A83312-1.02 1/2"Tanged--Right Hand2 1/2"-8Stainless Steel-
RFQ
B83312-1.53 3/4"TangedPlain8 UNRight Hand2 1/2"-8Stainless Steel€251.37
CHRISLYNN -

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

CHRISLYNN 83304-1.0A
CHRISLYNN 83304-1.5B
StyleModelInsert LengthTang TypeFinishThread TypeThread DirectionThread SizeMaterialPrice
A83304-1.01 1/2"Tanged--Right Hand1 1/2"-8Stainless Steel-
RFQ
B83304-1.52 1/4"TangedPlain8 UNRight Hand1 1/2"-8Stainless Steel€59.19
A83304-2.03"Tanged--Right Hand1 1/2"-8Stainless Steel-
RFQ
CHRISLYNN -

M11 x 1.5 Grade 304 Stainless Steel Free Running Helical Inserts

CHRISLYNN 84068A
StyleModelInsert LengthTang TypeThread DirectionThread SizeMaterialPkg. Qty.
A8406811 mmTangedRight HandM11 x 1.5Stainless Steel50
RFQ
A8416816.5 mmTangedRight HandM11 x 1.5Stainless Steel50
RFQ
A8426822 mmTangedRight HandM11 x 1.5Stainless Steel50
RFQ
A8436827.5 mmTangedRight HandM11 x 1.5Stainless Steel50
RFQ
A8446833 mmTangedRight HandM11 x 1.5Stainless Steel50
RFQ
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M20 x 2.5 Grade 304 Stainless Steel Free Running Helical Inserts

84081A
R1084-20B
StyleModelInsert LengthFree Coil Dia.Tang TypeFinishThread TypeThread DirectionTensile StrengthHardnessPricePkg. Qty.
A8408120 mm-Tanged--Right Hand---15
RFQ
A8418130 mm-Tanged--Right Hand---15
RFQ
BR1084-2030 mm23.98 mmTangedPlainCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€80.424
A8428140 mm-Tanged--Right Hand---15
RFQ
A8438150 mm-Tanged--Right Hand---15
RFQ
A8448160 mm-Tanged--Right Hand---15
RFQ
CHRISLYNN -

M20 x 1.5 Grade 304 Stainless Steel Free Running Helical Inserts

CHRISLYNN 84079A
StyleModelInsert LengthTang TypeThread DirectionThread SizeMaterialPkg. Qty.
A8407920 mmTangedRight HandM20 x 1.5Stainless Steel15
RFQ
A8417930 mmTangedRight HandM20 x 1.5Stainless Steel15
RFQ
A8427940 mmTangedRight HandM20 x 1.5Stainless Steel15
RFQ
A8437950 mmTangedRight HandM20 x 1.5Stainless Steel15
RFQ
A8447960 mmTangedRight HandM20 x 1.5Stainless Steel15
RFQ
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M18 x 1.5 Grade 304 Stainless Steel Free Running Helical Inserts

R514-6A
84076B
StyleModelInsert LengthFree Coil Dia.Tang TypeFinishThread TypeThread DirectionTensile StrengthHardnessPricePkg. Qty.
AR514-61/2"0.895"TangedPlainFineRight Hand200000 psi to 250000 psiRockwell C43-C50€50.566
B8407618 mm-Tanged--Right Hand---15
RFQ
B8417627 mm-Tanged--Right Hand---15
RFQ
B8427636 mm-Tanged--Right Hand---15
RFQ
B8437645 mm-Tanged--Right Hand---15
RFQ
B8447654 mm-Tanged--Right Hand---15
RFQ
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M14 x 2 Grade 304 Stainless Steel Free Running Helical Inserts

84073A
R1084-14B
StyleModelInsert LengthFree Coil Dia.Tang TypeFinishThread TypeThread DirectionTensile StrengthHardnessPricePkg. Qty.
A8407314 mm-Tanged--Right Hand---50
RFQ
A8417321 mm-Tanged--Right Hand---50
RFQ
BR1084-1421 mm17 mmTangedPlainCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50€66.436
A8427328 mm-Tanged--Right Hand---50
RFQ
A8437335 mm-Tanged--Right Hand---50
RFQ
A8447342 mm-Tanged--Right Hand---50
RFQ
-

M12 x 1.25 Grade 304 Stainless Steel Free Running Helical Inserts

84069A
R4649-12B
StyleModelInsert LengthFree Coil Dia.Tang TypeFinishThread TypeThread DirectionTensile StrengthHardnessPricePkg. Qty.
A8406912 mm-Tanged--Right Hand---50
RFQ
A8416918 mm-Tanged--Right Hand---50
RFQ
BR4649-1218 mm14.65 mmTangedPlainFineRight Hand200000 psi to 250000 psiRockwell C43-C50€43.126
A8426924 mm-Tanged--Right Hand---50
RFQ
A8436930 mm-Tanged--Right Hand---50
RFQ
A8446936 mm-Tanged--Right Hand---50
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.

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