helicoil

Office (734)-325-HELI(4354) | Email: sales@helithreadinserts.com

 

Thread Insert Products

Free Running Inserts

Helicoil type standard range is available in Stainless Steel AISI-304/ DTD734, metric series ranges from M1.6, M2 to M56 & in unified series from UNC / UNF 1-64 to 1-1/2 inch. The coil is also available in strip feed or reel mounted form, the coil in strip feed form are best suited for significantly reducing the installation time using power tool for installation of inserts.

Helical Inserts or Wire Thread Inserts are made of cold rolled 18-8 grade Stainless Steel to AS7245 , MIL-I-8846 & DTD734 specifications. This wire is cold rolled to a diamond cross section producing an ultimate tensile strength of approximately 1375-1725 MPa, mirror like surface finish of 2-4 Microns and flank hardness of RC 43-50 which is far in excess of the usual tapped materials and best suited for most of the industrial needs. Helical Inserts can also be supplied in other materials such as SS-316, Inconel X-750, Titanium Alloys, Nimonic 90, Nitronic 60, Phosphorus Bronze, Beryllium Copper and with special coating and plating requirements such as Cadmium plating, Silver plating, Zinc plating, Nickel plating and dry film lubricants, Anti- Corrosion/ Salt spray resistant coatings.

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Thread Cutting Taps

HeliCoil type Threading Taps are available in HSS material as standard product and as specials in HSSE or HSS with High Cobalt contents. In addition the taps can also be provided with special wear resistant coatings. Standard Helical taps are designed and manufactured of high speed steel to the most rigid specifications in various types and styles to produce holes for tolerance class 4H5H and 5H6H in Metric series and of class 2B/3B in UNC/UNF series for use in the general range of aluminums, magnesiums, mild steels and alloy steels.


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The driving tangs of HeliCoil type Inserts should be removed to eliminate their interference with the end of the assembled bolt. Their removal provides greater latitude in the depth location of the bolt. Manual Tang Break-Off Tools are available for use with inserts up through 18mm / 3/4" nominal diameter. Auto /Spring Loaded Tang Break-Off Tools are available for use with inserts up through 12mm / 1/2" nominal diameter. The operation of Auto Tang Break-Off Tools is automatic, having a spring loaded, easily triggered punch that strikes a sharp, uniform blow against the tang of the installed insert. It can be operated with one hand. For larger sizes use long nosed pliers. Bend tang up and down to snap off at notch. Tools to remove HeliCoil type Inserts are available for ranges M1.6, M2 – M2.2, 2.5 - 4.5mm, 3 - 8,. 5 - 10mm, 10 - 3/8", 11 - 24mm, 7/16" - 1", 27 - 39mm, 1-1/8" - 1-1/2". Extraction is done by applying the tool to the insert, striking the head of the tool a light blow and turning it counterclockwise, maintaining steady downward pressure.

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HeliCoil type Insertion Tools - Prewinder Type are available as both plain slotted and threaded mandrel captive & non-capitive tools ranging from size M1.6, M2 – M39 and in UNC / UNF category from 1-64 to 1-1/2”. HeliCoil type insertion tools comes in variety of configurations such as Threaded Mandrel Type Insertion Tool Threaed Mandrel Prewinder tools having threaded nozzle: Tool is available as both Capitive & Non-Capitive type depending on size & pitch. Plain Mandrel Prewinder tools having threaded nozzle: Tool is available as both Capitive & Non-Capitive type depending on size & pitch. Larger insertion tool sizes are also available & made on request. HeliCoil type Prewinder tools are best suited for easy & fatigue free installation of inserts in production line to achieve a high quality of HeliCoil type insert installation & prevent jumping of coil threads. Threaded mandrel prewinders are also best recommended for successful installation of screw locking inserts and free running inserts having a fine thread pitch.

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All HeliCoil type Thread Repair Kits are used for creating stronger internal threads in all metals, composites, polymers and other materials by repairing damaged or stripped internal threads and regaining the original thread size. HeliThread Repair Kit creates longer lasting durable threads, avoids thread over-sizing, increases the possibility of higher torque application in weaker metals, significantly reduces the bolt breaking problems & the coil being made of stainless steel protects against atmospheric corrosion. HeliThread Repair Kits include everything required to do the job right. Finishing tap, installation tool and tang breaking tool – all in a rugged new box. These kits are available in metric range from M2 to M12 and in UNC/UNF range "4-40 to 1/2”. Different size of Thread Inserts available.
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TAPPED-HOLE AND FITTED SIZE METRIC

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SIZE PITCH DRILLED
HOLE
SIZE PITCH DRILLED
HOLE
M2 0.4 2.177
2.087
  M16 2.0 16.733
16.433
M2.2 0.45 2.397
2.297
  M18 1.5 18.561
18.325
M2.5 0.45 2.697
2.597
  M18 2.0 18.733
18.433
M3 0.5 3.220
3.108
  M18 2.5 18.896
18.541
M3.5 0.6 3.755
3.630
  M20 1.5 20.561
20.325
M4 0.7 4.292
4.152
  M20 2.0 20.733
20.433
M4 0.75 4.812
4.662
  M20 2.5 20.896
20.541
M5 0.8 5.333
5.173
  M22 1.5 22.561
22.325
M6 1.0 6.406
6.216
  M22 2.0 22.733
22.433
M7 1.0 7.406
7.216
  M22 2.5 22.896
22.541
M8 1.0 8.406
8.216
  M24 1.5 24.655
24.430
M8 1.25 8.483
8.271
  M24 2.0 24.733
24.433
M10 1.25 10.483
10.271
  M24 3.0 25.050
24.650
M10 1.5 10.561
10.325
  M27 3.0 28.050
27.650
M12 1.25 12.483
12.271
  M30 3.5 31.208
30.758
M12 1.75 12.644
12.379
  M33 3.5 34.208
33.758
M14 1.5 14.561
14.325
  M36 1.5 37.255
36.765
M14 2.0 14.733
14.433
  M36 4.0 37.341
36.866
M16 1.5 16.561
16.325
  M39 4.0 40.341
39.866

UNC - BSW                                                                     UNF

SIZE THREAD TPI DRILLED HOLE   SIZE THREAD TPI DRILLED HOLE
No.2 56 2.3 mm   No.2 64 2.3 mm
No.3 48 2.7 mm   No.3 56 2.65 mm
No.4 40 3 mm   No.4 48 3 mm
No.5 40 3.4 mm   No.5 44 3.3 mm
No.6 32 3.7 mm   No.6 40 3.7 mm
No.8 32 11/64"   No.8 36 11/64"
No.10 24 5.1 mm No.10 32 5.1 mm
No.12 24 5.8 mm        
1/4" 20 6.7 mm   1/4" 28 6.6 mm
5/6" 18 21/64"   5/6" 24 8.2 mm
M8 16 25/64"   M8 24 9.8 mm
7/16" 14 29/64"   7/16" 20 29/64"
1/2' 13 33/64"   1/2' 20 33/64"
9/16" 12 14.75 mm   9/16" 18 37/64"
5/8" 11 21/32"   5/8" 18 41/46"
3/4" 10 25/32"   3/4" 16 49/64"
7/8" 9 29/32"   7/8" 14 22.75 mm
1" 8 1-1/32"   1" 12 26 mm
1 1/8" 7 1-11/64"   1 1/8" 12 29.25 mm
1 1/4" 7 1-19/64"   1 1/4" 12 1-17/64"
1 3/8" 6 36 mm   1 3/8" 12 35.5 mm
1 1/2" 6 39.5 mm   1 1/2" 12 38.5 mm

HELI-COIL® is a registered trademark of StanleyBlack&Decker


 

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