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NAVBHARAT

PERMANENT THREADFOR BASE MATERIALS Available in Materials

MILD STEELALUMINIUMCAST IRONPLASTICBRASSWOODLIGHT ALLOY

MILD STEELALUMINIUMCAST IRONPLASTICBRASSWOODLIGHT ALLOY

STEEL HARDENEDSTAINLESS STEELBRASS

NAVBHARAT ENGINEERS203, 2nd floor, Shanta Industrial Estate, I. B. Patel Road, Goregaon (East),

Mumbai – 400 063, INDIA | Tel: +91 022 - 26852016 / +91 022 - 26859834E-mail : [email protected] / [email protected] / Net : www.ne-india.com

HELISOLID Threaded Inserts®

HELISOLID®

* Thread repair kit containing 100 Nos. Inserts size M3 to M16 are available


Specially designed to cut their own threads as they are being driven into a drilled hole. The thread

cutting action is performed by the cutting slots or holes on the insert.

Ideal for thread reinforcement, especially when the mating stud or bolt will be removed

frequently. They provide strong, permanent steel threads in a weaker parent material — ferrous,

non-ferrous, or non-metallic. They are well suited for quick repair of stripped, damaged, or worn

threads.

Unlike coil inserts, which require a special tap and installation tool, Helisolid Self Tapping Threaded

Inserts for metal are installed using standard tools. Simply drill the appropriately sized hole with a

standard drill and turn in the Helisolid Self Tapping Threaded Inserts like an ordinary fastener with a

Helisolid installation tool.

Solid, one-piece threaded insert construction provides a high degree of pull-out strength.

Provide a positive mechanical lock which prevents rotation due to vibration or torsion.

Easy threaded insert installation and removal. Installed with standard drills and taps.

No pre-winder tool required.

No tang to break off.

Full range of Inch and Metric sizes in coarse or fine pitch threads.

Industrial Style Threaded inserts can be purchased in bulk quantities or kits.

These inserts are also available as per leading Aerospace & Defence specifications (MS/NAS Style)

NAVBHARAT

* Thread repair kit containing 100 Nos. Inserts size M3 to M16 are available


The biggest advantages that Helisolid Threaded Inserts have over Helicoil inserts are in pull-out

strength, torque-out strength and ease of installation. Helicoil inserts are thread coils made of

formed wire while Helisolid Threaded Inserts are machined from solid steel bars.

Installing a Heli-Coil insert can be difficult and time consuming. It involves drilling and tapping a

hole with special drills and taps, inserting the Heli-Coil insert into a special pre-winder tool and

lining it up with the tapped hole for installation. Helisolid Threaded Inserts do not need a

special pre-winder tool or special sized drills or taps.

Heli-Coil inserts have less pull-out and torque-out strength than Helisolid Threaded Inserts

because they are a wound wire versus a solid metal piece. Cross threading of a Heli-Coil

product is often a problem while accidental cross-threading is nearly impossible with the

Helisolid Threaded Insert.

Heli-Coil inserts have tangs that need to be broken off after installation. These broken off tangs

can fall into parent material creating FOD (Foreign Object Debris) in the assembly. Helisolid

Threaded Inserts have no tangs to break off.A new Helisolid Threaded Insert can be used in the same hole after removal of previous insert

by using thick walled Helisolid Threaded Insert. The same may not be possible Heli-Coil inserts.

NAVBHARAT

HELISOLID v/s HELICOIL

A = SLOTTEDAH= 3 HOLE

TYPE MATERIAL :

Internal ThreadD1 (mm)

M3

M4

M5

M6

M8

M10

M12

M14

M16

M18

M20

M22

M24

M27

M30

5

7

8

10

12

14

16

18

20

22

26

26

30

34

36

6

8

10

14

15

18

22

24

22

24

27

30

30

30

40

A030M

A040M

A050M

A060M

A080M

A100M

A120M

A140M

A160M

A180M

A200M

A220M

A240M

A270M

A300M

AH030M

AH040M

AH050M

AH060M

AH080M

AH100M

AH120M

AH140M

AH160M

AH180M

AH200M

AH220M

AH240M

AH270M

AH300M

External ThreadD2 (mm)

LengthL (mm)

Appro. Hole Size(for reference only)

Ordering No. (Slotted Type)

HOLE DEPTH :M = Steel hardenedB = BrassS = Stainless Steel

Blanck = 1.2 x Insert Length(Minimum) Through = Insert Length + Imm

Wall Thickness (Min)C.L. = 0.4 x D2

METAL = 0.35 x D2PLASTIC = 0.6 x D2

TECHNICAL SHEET

4.2 to 4.4

6.2 to 6.4

7.2 to 7.4

9.2. to 9.4

11.2 to 11.4

13.2 to 13.4

15.2 to 15.4

17.2 to 17.4

19.2 to 19.4

21.2 to 21.4

25.2 to 25.4

25.2 to 25.4

29.2 to 29.4

33.2 to 33.4

35.2 to 35.4

Ordering No. (3Hole Type)

Self Tapping Threaded Inserts

HELISOLID®

Material: Stainless Steel / Steel Hardened / BrassTolerances: +/- 0.25mm unless sepecified otherwiseBSW, BSF, UNC & UNF Thread Series AvailableSteel Hardened Coating: Zinc Yellow Plated / BackodisingThin & Thick wall thickness inserts also availableWe also manufacture Non-Standard inserts as per specifications/drawing

D2 D2D1 D1

LL

NAVBHARAT

1. From the thread size find the diameter of hole to be drilled in the base material as given in the technical sheet.

2. Hold the insert in the wrench and turn it in the hole as shown in (fig.ii)

3. Hold Hex nut with spanner to break lock. Unscrew the wrench leaving insert installed in base material (fig. iii)

4. Incase of smaller size or hard base material 1st tap (out of 3) can be passed before installation of insert.

INSTALLATION

INSERTION (FITTING) TOOLS

Tool size confirms to internal of insert. Wrench

type fools can be used by hand for small sizes and less

quantity (Fig. a). In production assembly tools can be

used (Fig. b).

(i) (ii) (iii)

(fig. a) (fig. b)

Self Tapping Threaded Inserts

NAVBHARATHELISOLID Threaded Inserts

®

NAVBHARAT

Key Locking Threaded Inserts







LengthL (mm)

LengthL (mm)

LengthL (mm)

Tap Drill Size

Tap Drill Size

Tap Drill Size

Ordering No.

Ordering No.

Ordering No.

TECHNICAL SHEET

MiniatureA)

B)

C)

Light weight

Heavy Duty

M2x0.4M2.5x0.45

M3x0.5M4x0.7

M5x0.8M6x1.0

M8x1.25M10x1.5

M12x1.75

M4x0.7M5x0.8M6x1.0

M8x1.25M10x1.5

M12x1.75M14x2.0M16x2.0M18x1.5M20x2.5M22x1.5M24x3.0

M4x0.7M4.5x0.75

M5x0.8M6x0.75

M8x1.25M10x1.25M12x1.25M14x1.5M16x1.5

M8x1.25M10x1.25M12x1.25M14x1.5M16x1.5M18x1.5M20x1.5M22x1.5M24x2.0M30x2.0M32x2.0M33x2.0

3.004.004.005.00

810121416

81012141618202224303233

3.43.94.45.5

6.908.80

10.8012.8014.75

6.98.8

10.812.8

14.7516.7518.7520.522.5283130

CM020SCM2.5SCM030SCM040S

CL050SCL060SCL080SCL100SCL120S

CH040SCH050SCH060SCH080SCH100SCH120SCH140SCH160SCH180SCH200SCH220SCH240S

HELISOLID ®

Material: Stainless Steel / Steel Hardened / Brass

Tolerances: +/- 0.25mm unless sepecified otherwise

BSW, BSF, UNC & UNF Thread Series Available

Steel Hardened Coating: Zinc Yellow Plated / Backodising

Thin & Thick wall thickness inserts also available

We also manufacture Non-Standard inserts as per specifications/drawing

Tap Drill Hole Tolerance : 3.40 to 5.50 = +0.080/-0.025; 6.90 to 10.80 = +0.100/-0.025; Over 12.80 = +0.130/-0.025

D1

D2

L

NAVBHARAT

Installation

Removal

Drill out old threads with astandard drill. Note: Drill isoversize - see charts forproper dimensions. Chamferthe hole with a standard

0 0countersink (82 -100 )

Drill out material between keysand internal thread with standarddrill to specified depth (refer tocharts for proper dimensions)

Deflect keys inward and break off. Remove inert using Helisolid drill out tool

Same size replacement insert maybe installed in the original hole.

Tap new threads with a standardtap. See charts for proper sizeand depth.

Screw in the insert until slightlybelow surface.

Drive keys down with severalhammer taps on the properinstallation tool

Key Locking Threaded Inserts


NAVBHARAT

TECHNICAL SHEET

Wood Threaded Inserts

HELISOLID®

Material: Stainless Steel / Steel Hardened / Brass

Tolerances: +/- 0.25mm unless sepecified otherwise

BSW, BSF, UNC & UNF Thread Series Available

Steel Hardened Coating: Zinc Yellow Plated / Backodising

Thin & Thick wall thickness inserts also available

We also manufacture Non-Standard inserts as per specifications/drawing



LengthL (mm)

Approx. Hole Size (for reference only)

Ordering No.

M3

M4

M5

M6

M8

M10

M12

M14

M16

5.5

7

9

10

13

16

19

22

24

6

8

10

14

15

18

22

24

22

4.2 to 4.4

6.2 to 6.4

7.2 to 7.4

9.2. to 9.4

11.2 to 11.4

13.2 to 13.4

15.2 to 15.4

17.2 to 17.4

19.2 to 19.4

B030M

B040M

B050M

B060M

B080M

B100M

B120M

B140M

B160M

helisolid thread insertsnavbharatengineers.com/pdf/helisolid thread inserts.pdfhelicoil inserts are...

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