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
HELISOLID Threaded Inserts®
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
HELISOLID Threaded Inserts®
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
Internal ThreadD1 (mm)
Internal ThreadD1 (mm)
Internal ThreadD1 (mm)
External ThreadD2 (mm)
External ThreadD2 (mm)
External ThreadD2 (mm)
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
HELISOLID 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
Internal ThreadD1 (mm)
External ThreadD2 (mm)
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