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 -

M7 x 1 Grade 304 Stainless Steel Free Running Helical Inserts

StyleModelInsert LengthFree Coil Dia.Tang TypeThread TypeThread DirectionTensile StrengthHardnessPrice (inc. VAT)Pkg. Qty.
A840587 mm-Tanged-Right Hand---100
RFQ
A8415810.5 mm-Tanged-Right Hand---100
RFQ
BA1084-7CN14014 mm8.925 mmTangedCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£170.00100
A8425814 mm-Tanged-Right Hand---100
RFQ
BA1084-7CN17517.5 mm8.925 mmTangedCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£173.75100
A8435817.5 mm-Tanged-Right Hand---100
RFQ
A8445821 mm-Tanged-Right Hand---100
RFQ
CHRISLYNN -

M4 x 0.7 Grade 304 Stainless Steel Free Running Helical Inserts

StyleModelInsert LengthFree Coil Dia.Tang TypeFinishThread TypeThread DirectionTensile StrengthHardnessPrice (inc. VAT)Pkg. Qty.
AA1084-4CNW0404 mm5.325 mmTangedDry Film LubricantCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£112.36100
A1084-4CN040S4 mm5.325 mmTanged-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£1,199.941
AA1084-4CN0404 mm5.325 mmTanged-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£98.48100
B840554 mm-Tanged--Right Hand---100
RFQ
AA1084-4CN0505 mm5.325 mmTanged-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£223.99100
AA1084-4CN0606 mm5.325 mmTanged-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£75.19100
CR1084-46 mm5.325 mmTanged-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£28.7412
B841556 mm-Tanged--Right Hand---100
RFQ
A1084-4CNW060S6 mm5.325 mmTangedDry Film LubricantCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£1,408.441
AA1084-4CNW0606 mm5.325 mmTangedDry Film LubricantCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£119.92100
A1084-4CN060S6 mm5.325 mmTanged-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£1,165.341
AA1084-4CN0808 mm5.325 mmTanged-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£114.64100
B842558 mm-Tanged--Right Hand---100
RFQ
A1084-4CN080S8 mm5.325 mmTanged-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£1,335.881
B8435510 mm-Tanged--Right Hand---100
RFQ
AA1084-4CN10010 mm5.325 mmTanged-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£128.60100
AA1084-4CN12012 mm5.325 mmTanged-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£152.18100
B8445512 mm-Tanged--Right Hand---100
RFQ
CHRISLYNN -

M3 x 0.5 Grade 304 Stainless Steel Free Running Helical Inserts

StyleModelInsert LengthFree Coil Dia.Tang TypeFinishThread TypeThread DirectionTensile StrengthHardnessPrice (inc. VAT)Pkg. Qty.
A840533 mm-Tanged--Right Hand---100
RFQ
BA1084-3CN0303 mm4.075 mmTanged-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£119.59100
BA1084-3CNW0303 mm4.075 mmTangedDry Film LubricantCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£162.58100
B1084-3CN030S3 mm4.075 mmTanged-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£1,621.301
B1084-3CN045S4.5 mm4.075 mmTanged-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£1,536.461000
B1084-3CNW045S4.5 mm4.075 mmTangedDry Film LubricantCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£1,757.231000
BA1084-3CN0454.5 mm4.075 mmTanged-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£123.33100
CR1084-34.5 mm4.08 mmTanged-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£26.9412
BA1084-3CNW0454.5 mm4.075 mmTangedDry Film LubricantCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£163.80100
A841534.5 mm-Tanged--Right Hand---100
RFQ
A842536 mm-Tanged--Right Hand---100
RFQ
B1084-3CN060S6 mm4.075 mmTanged-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£1,720.031
BA1084-3CNW0606 mm4.075 mmTangedDry Film LubricantCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£173.71100
BA1084-3CN0606 mm4.075 mmTanged-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£108.09100
BA1084-3CN0757.5 mm4.075 mmTanged-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£155.97100
A843537.5 mm-Tanged--Right Hand---100
RFQ
A844539 mm-Tanged--Right Hand---100
RFQ
BA1084-3CN0909 mm4.075 mmTanged-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£218.56100
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
CHRISLYNN -

1 1/2"-12 Grade 304 Stainless Steel Free Running Helical Inserts

StyleModelInsert LengthFree Coil Dia.Tang TypeThread TypeThread DirectionTensile StrengthHardnessPrice (inc. VAT)Pkg. Qty.
A840451 1/2"-Tanged-Right Hand---5
RFQ
BK1191-242 1/4"1.727"TangedFineRight Hand200000 psi to 250000 psiRockwell C43-C50£74.731
A841452 1/4"-Tanged-Right Hand---5
RFQ
A843453 3/4"-Tanged-Right Hand---5
RFQ
A842453"-Tanged-Right Hand---5
RFQ
A844454 1/2"-Tanged-Right Hand---5
RFQ
CHRISLYNN -

1 3/8"-12 Grade 304 Stainless Steel Free Running Helical Inserts

StyleModelInsert LengthFree Coil Dia.Tang TypeThread TypeThread DirectionTensile StrengthHardnessPrice (inc. VAT)Pkg. Qty.
A840431 3/8"-Tanged-Right Hand---5
RFQ
A842432 3/4"-Tanged-Right Hand---5
RFQ
A841432.062"-Tanged-Right Hand---5
RFQ
BK1191-222.062"1.593"TangedFineRight Hand200000 psi to 250000 psiRockwell C43-C50£63.081
A843433.438"-Tanged-Right Hand---5
RFQ
A844434 1/8"-Tanged-Right Hand---5
RFQ
CHRISLYNN -

1 3/8"-6 Grade 304 Stainless Steel Free Running Helical Inserts

StyleModelInsert LengthFree Coil Dia.Tang TypeThread TypeThread DirectionTensile StrengthHardnessPrice (inc. VAT)Pkg. 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"TangedCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£62.341
A843423.438"-Tanged-Right Hand---5
RFQ
A844424 1/8"-Tanged-Right Hand---5
RFQ
CHRISLYNN -

1/4"-20 Grade 304 Stainless Steel Free Running Helical Inserts

StyleModelInsert LengthTang TypeFree Coil Dia.FinishThread TypeThread DirectionTensile StrengthHardnessPrice (inc. VAT)Pkg. Qty.
AA1185-4CN5001/2"Tanged8/25"-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£115.55100
A1185-4CN500S1/2"Tanged8/25"-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£628.32500
BAT1185-4C5001/2"Tangless8/25"-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£91.51100
BT1185-4C500S1/2"Tangless8/25"-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£790.351
C842161/2"Tanged---Right Hand---100
RFQ
AA1185-4CNW5001/2"Tanged8/25"Dry Film LubricantCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£113.79100
AA1185-4CN2501/4"Tanged8/25"-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£99.70100
A1185-4CN250S1/4"Tanged8/25"-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£1,332.821
BAT1185-4C2501/4"Tangless8/25"-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£88.51100
C840161/4"Tanged---Right Hand---100
RFQ
BT1185-4C250S1/4"Tangless8/25"-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£2,426.651
C844163/4"Tanged---Right Hand---100
RFQ
AA1185-4CN7503/4"Tanged8/25"-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£140.16100
BR1185-43/8"Tanged8/25"-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£23.9212
BAT1185-4C3753/8"Tangless8/25"-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£95.57100
A1185-4CN375S3/8"Tanged8/25"-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£1,303.271
C841163/8"Tanged---Right Hand---100
RFQ
AA1185-4CNW3753/8"Tanged8/25"Dry Film LubricantCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£130.10100
AA1185-4CN3753/8"Tanged8/25"-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£98.75100
BT1185-4C375S3/8"Tangless8/25"-CoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£2,490.651
C843165/8"Tanged---Right Hand---100
RFQ
CHRISLYNN -

5/16"-24 Grade 304 Stainless Steel Free Running Helical Inserts

StyleModelInsert LengthFree Coil Dia.Tang TypeThread TypeThread DirectionTensile StrengthHardnessPrice (inc. VAT)Pkg. Qty.
A843190.781"-Tanged-Right Hand---100
RFQ
BA1191-5CN2501/4"0.39"TangedFineRight Hand200000 psi to 250000 psiRockwell C43-C50£238.63100
BA1191-5CN6255/8"0.39"TangedFineRight Hand200000 psi to 250000 psiRockwell C43-C50£155.73100
A842195/8"-Tanged-Right Hand---100
RFQ
BA1191-5CN3125/16"0.39"TangedFineRight Hand200000 psi to 250000 psiRockwell C43-C50£115.88100
A840195/16"-Tanged-Right Hand---100
RFQ
B1191-5CN312S5/16"0.39"TangedFineRight Hand200000 psi to 250000 psiRockwell C43-C50£631.39500
A8441915/16"-Tanged-Right Hand---100
RFQ
B1191-5CN469S15/32"0.39"TangedFineRight Hand200000 psi to 250000 psiRockwell C43-C50£697.60500
A8411915/32"-Tanged-Right Hand---100
RFQ
BA1191-5CN46915/32"0.39"TangedFineRight Hand200000 psi to 250000 psiRockwell C43-C50£126.33100
CHRISLYNN -

1 1/4"-7 Grade 304 Stainless Steel Free Running Helical Inserts

StyleModelInsert LengthFree Coil Dia.Tang TypeThread TypeThread DirectionTensile StrengthHardnessPrice (inc. VAT)Pkg. Qty.
A840401 1/4"-Tanged-Right Hand---5
RFQ
BK1185-201 7/8"1.463"TangedCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£56.751
A841401 7/8"-Tanged-Right Hand---5
RFQ
A842402 1/2"-Tanged-Right Hand---5
RFQ
A843403 1/8"-Tanged-Right Hand---5
RFQ
A844403 3/4"-Tanged-Right Hand---5
RFQ
StyleModelInsert LengthFree Coil Dia.Tang TypeThread TypeThread DirectionTensile StrengthHardnessPrice (inc. VAT)Pkg. Qty.
AA1084-5EN0505 mm6.525 mmTanglessCoarseRight Hand200000 psiRockwell C43-C50£184.13100
AA1084-5EN15015 mm6.525 mmTanglessCoarseRight Hand200000 psiRockwell C43-C50£219.69100
StyleModelInsert LengthFree Coil Dia.Tang TypeThread TypeThread DirectionTensile StrengthHardnessPrice (inc. VAT)Pkg. Qty.
AA1185-2EN4100.41"0.212"TanglessCoarseRight Hand200000 psiRockwell C43-C50£199.48100
AA1185-04EN2807/25"0.151"TanglessCoarseRight Hand200000 psiRockwell C43-C50£205.85100
StyleModelInsert LengthFree Coil Dia.Tang TypeThread TypeThread DirectionTensile StrengthHardnessPrice (inc. VAT)Pkg. Qty.
AA1185-4EN7503/4"8/25"TanglessCoarseRight Hand200000 psiRockwell C43-C50£228.42100
AA1185-4EN6255/8"8/25"TanglessCoarseRight Hand200000 psiRockwell C43-C50£209.46100
StyleModelInsert LengthFree Coil Dia.Tang TypeThread TypeThread DirectionTensile StrengthHardnessPrice (inc. VAT)Pkg. Qty.
AA1185-06EN3450.345"0.185"TanglessCoarseRight Hand200000 psiRockwell C43-C50£202.46100
AA1185-06EN4140.414"0.185"TanglessCoarseRight Hand200000 psiRockwell C43-C50£209.61100
StyleModelInsert LengthTang TypeThread DirectionThread SizeMaterialPkg. Qty.
A8407416 mmTangedRight HandM16 x 1.5Stainless Steel50
RFQ
A8417424 mmTangedRight HandM16 x 1.5Stainless Steel50
RFQ
A8427432 mmTangedRight HandM16 x 1.5Stainless Steel50
RFQ
A8437440 mmTangedRight HandM16 x 1.5Stainless Steel50
RFQ
A8447448 mmTangedRight HandM16 x 1.5Stainless Steel50
RFQ
CHRISLYNN -

M14 x 2 Grade 304 Stainless Steel Free Running Helical Inserts

StyleModelInsert LengthFree Coil Dia.Tang TypeThread TypeThread DirectionTensile StrengthHardnessPrice (inc. VAT)Pkg. Qty.
A8407314 mm-Tanged-Right Hand---50
RFQ
BR1084-1421 mm17 mmTangedCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£56.636
A8417321 mm-Tanged-Right Hand---50
RFQ
A8427328 mm-Tanged-Right Hand---50
RFQ
A8437335 mm-Tanged-Right Hand---50
RFQ
A8447342 mm-Tanged-Right Hand---50
RFQ
CHRISLYNN -

M12 x 1.75 Grade 304 Stainless Steel Free Running Helical Inserts

StyleModelInsert LengthFree Coil Dia.Tang TypeThread TypeThread DirectionTensile StrengthHardnessPrice (inc. VAT)Pkg. Qty.
A8407112 mm-Tanged-Right Hand---50
RFQ
A8417118 mm-Tanged-Right Hand---50
RFQ
BR1084-1218 mm14.65 mmTangedCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£36.446
CA1084-12CN18018 mm14.65 mmTangedCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£241.26100
A8427124 mm-Tanged-Right Hand---50
RFQ
A8437130 mm-Tanged-Right Hand---50
RFQ
A8447136 mm-Tanged-Right Hand---50
RFQ
StyleModelInsert LengthTang TypeThread DirectionThread SizeMaterialPkg. Qty.
A8406711 mmTangedRight HandM11 x 1.25Stainless Steel50
RFQ
A8416716.5 mmTangedRight HandM11 x 1.25Stainless Steel50
RFQ
A8426722 mmTangedRight HandM11 x 1.25Stainless Steel50
RFQ
A8436727.5 mmTangedRight HandM11 x 1.25Stainless Steel50
RFQ
A8446733 mmTangedRight HandM11 x 1.25Stainless Steel50
RFQ
CHRISLYNN -

M14 x 1.25 Grade 304 Stainless Steel Free Running Helical Inserts

StyleModelInsert LengthFree Coil Dia.Tang TypeThread TypeThread DirectionTensile StrengthHardnessPrice (inc. VAT)Pkg. Qty.
AR513-200.472"11/16"TangedMetricRight Hand200000 psi to 250000 psiRockwell C43-C50£27.956
AR513-131/2"11/16"TangedMetricRight Hand200000 psi to 250000 psiRockwell C43-C50£37.376
AR513-103/4"11/16"TangedMetricRight Hand200000 psi to 250000 psiRockwell C43-C50£53.406
B8404714 mm-Tanged-Right Hand---50
RFQ
B8414721 mm-Tanged-Right Hand---50
RFQ
B8424728 mm-Tanged-Right Hand---50
RFQ
B8434735 mm-Tanged-Right Hand---50
RFQ
B8444742 mm-Tanged-Right Hand---50
RFQ
CHRISLYNN -

1 1/2"-6 Grade 304 Stainless Steel Free Running Helical Inserts

StyleModelInsert LengthFree Coil Dia.Tang TypeThread TypeThread DirectionTensile StrengthHardnessPrice (inc. VAT)Pkg. Qty.
A840441 1/2"-Tanged-Right Hand---5
RFQ
A841442 1/4"-Tanged-Right Hand---5
RFQ
BK1185-242 1/4"1.749"TangedCoarseRight Hand200000 psi to 250000 psiRockwell C43-C50£75.761
A843443 3/4"-Tanged-Right Hand---5
RFQ
A842443"-Tanged-Right Hand---5
RFQ
A844444 1/2"-Tanged-Right Hand---5
RFQ
CHRISLYNN -

1 1/4"-12 Grade 304 Stainless Steel Free Running Helical Inserts

StyleModelInsert LengthFree Coil Dia.Tang TypeThread TypeThread DirectionTensile StrengthHardnessPrice (inc. VAT)Pkg. Qty.
A840411 1/4"-Tanged-Right Hand---5
RFQ
A841411 7/8"-Tanged-Right Hand---5
RFQ
BK1191-201 7/8"1.454"TangedFineRight Hand200000 psi to 250000 psiRockwell C43-C50£56.971
A842412 1/2"-Tanged-Right Hand---5
RFQ
A843413 1/8"-Tanged-Right Hand---5
RFQ
A844413 3/4"-Tanged-Right Hand---5
RFQ
123...6

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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