Please note that the MISUMI Pune office and warehouse will be closed on November 20th due to the state election.
Notice of End of Sales for Economy Series Pneumatic Equipment Category. More information.

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Insert（Screw Type：Metric (Fine) Thread）

These products are used for reinforcing female threads. These can be used with damaged female threads or soft materials to enable screws/bolts to be tightened.
In general, coil inserts that have been machined into a coil shape are very common, but we also have a wide lineup that includes "self-tapping inserts", "inserts for resin", "insert nuts", "locking inserts", etc., enabling use to suit various environments or materials.
MISUMI enables spec searches and ordering quantities from just 1 piece. Tools are also sold in addition to the inserts themselves.
[Materials]
Iron, stainless steel, brass, phosphor bronze, Inconel, nitronics
[Size]
M1.4 to M39 are available as well as imperial sizes
[Search Keywords]
Heli-Sert, E-Sert, Sprue, Female Thread

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Search by specifying the lower class category

Brand	(1) (0) ACCURATE (1) BOHSEI (0) ESCO (0) HIROSUGI SEIKI (0) HIROSUGI-KEIKI (0) JAPAN DRIVEIT (0) KKV (0) KS SANGYO (0) NIPPON SPREW (1) RECOIL (3) SEL JAPAN (0) SUNCO (5) TOKAI METAL INDUSTRY (0) TSUGAMI (1)
CAD	2D 3D
Days to Ship	All Same day 5 Day(s) or Less 6 Day(s) or Less 7 Day(s) or Less 8 Day(s) or Less Others

12 items

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: 30; 45; 60

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Thread Inserts

MISUMI

[Specification expansion] In response to many requests, a new standard product is now available! *Please see the specification table or model number list for applicable products.
[Handling Standards] Coarse M diameter: 2, 2.2, 2.5, 2.6, 3, 3.5, 4, 5, 6, 8, 10, 12, 14, 16, 18, Fine M diameter: 6, 8, 10, 12, 14, 16, 18
You can purchase from 1 piece!

Application: Strengthens the female thread of the base.
Features: Durable screw connection. You can create a concise design.
Material: SUS304.

Volume Discount

CAD ：: 2D / 3D

Screw Dia. M (after insertion)(mm)	Environmentally friendly	Type	Characteristics/Applications	Material	Screw Type	Length L (after insertion) (D = Thread Dia. M)	Application	Notch	Thread Dia. (After inserted), Unified(inch)	Shape	Sales Unit	Cleaning Method
6 ～ 18	-	Standard	-	Stainless Steel (SUS303/304)	Metric (Fine) Thread	1D / 1.5D / 2D / 3D	Light Metal	Provided	-	-	Low Quantity (Available beginning with 1 pc.)	-

From: ₹ 34.88
Days to Ship: 6 Day(s) or more

6 Day(s) or more

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Recoil Packet (Milli)【5-10 Pieces Per Package】

RECOIL

[Type] Threaded Insert Use
[Application] Light Metal
[Materials] SUS304 with Notch
[Application] Light Metal
[Screw type] Coarse/Fine Screw Diameter (after insertion) 2 2.2 2.5 3 3.5 4 5 6 7 8 9 10 11 12 14 16 18 20 Length (after insertion)
[L](D = screw diameter M) 1D 1.5D 2D
[Sales unit] Minimum Quantity (Available for Purchase from 1 pc) Box and Pkg.
[Pitch (mm)] 0.4 0.45 0.5 0.6 0.7 0.8 1.0 1.25 1.5 1.75 2.0 2.5 Usage Environment: Internal Combustion Engines/Manufacturing Equipment Quantity 5 10

Screw Dia. M (after insertion)(mm)	Environmentally friendly	Type	Characteristics/Applications	Material	Screw Type	Length L (after insertion) (D = Thread Dia. M)	Application	Notch	Thread Dia. (After inserted), Unified(inch)	Shape	Sales Unit	Cleaning Method
8 ～ 20	-	Standard	-	Stainless Steel (SUS303/304)	Metric (Fine) Thread	1D / 1.5D / 2D	Light Metal	Provided	-	-	Box, Pkg.	-

From: ₹ 49.33
Days to Ship: 5 Day(s) or more

5 Day(s) or more

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Stainless Steel E-Sert Fine (Hemlock-Made)【1-100 Pieces Per Package】

SUNCO

[Nominal M] 6, 8, 14, 18, 20, 22, 24, 27, 30, 33, 36, 39
[Material] Stainless Steel
[Surface Processing] Bare

Screw Dia. M (after insertion)(mm)	Environmentally friendly	Type	Characteristics/Applications	Material	Screw Type	Length L (after insertion) (D = Thread Dia. M)	Application	Notch	Thread Dia. (After inserted), Unified(inch)	Shape	Sales Unit	Cleaning Method
6 ～ 39	-	Standard	-	Stainless Steel (SUS303/304)	Metric (Fine) Thread	1D / 1.5D / 2D / 2.5D	-	Provided	-	Standard	Low Quantity (Available beginning with 1 pc.) / Box, Pkg.	-

From: ₹ 26.87
Days to Ship: 5 Day(s) or more

5 Day(s) or more

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Recoil-Free (Specified mm) SUS304

RECOIL

The material is normal stainless steel 304 (18–8), but the material has been manufactured with other materials added for special applications.

Volume Discount

Screw Dia. M (after insertion)(mm)	Environmentally friendly	Type	Characteristics/Applications	Material	Screw Type	Length L (after insertion) (D = Thread Dia. M)	Application	Notch	Thread Dia. (After inserted), Unified(inch)	Shape	Sales Unit	Cleaning Method
8 ～ 24	-	Standard	-	Stainless Steel (SUS303/304)	Metric (Fine) Thread	1D / 1.5D / 2D	Light Metal	Provided	-	-	Low Quantity (Available beginning with 1 pc.)	-

From: ₹ 90.00
Days to Ship: 5 Day(s) or more

5 Day(s) or more

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Tangless Insert Metric Coarse

ACCURATE

An insert with no tang that does not require folding to remove. A product that eliminates the time and cost required to perform the insertion operation that would otherwise be needed when tangs are present.

Volume Discount

Screw Dia. M (after insertion)(mm)	Environmentally friendly	Type	Characteristics/Applications	Material	Screw Type	Length L (after insertion) (D = Thread Dia. M)	Application	Notch	Thread Dia. (After inserted), Unified(inch)	Shape	Sales Unit	Cleaning Method
16 ～ 20	-	Tangless	-	Stainless Steel (SUS303/304)	Metric (Fine) Thread	1D	Light Metal / Cast Iron / Resin General	Not Provided	-	-	-	-

From: ₹ 557.00
Days to Ship: 7 Day(s) or more

7 Day(s) or more

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E-Sert Fine

TSUGAMI

Old 'Heli-Coils Inserted'. The screws of the main body are reinforced, which ensures highly durable fastening.

Volume Discount

Screw Dia. M (after insertion)(mm)	Environmentally friendly	Type	Characteristics/Applications	Material	Screw Type	Length L (after insertion) (D = Thread Dia. M)	Application	Notch	Thread Dia. (After inserted), Unified(inch)	Shape	Sales Unit	Cleaning Method
10 ～ 16	-	Standard	-	Stainless Steel (SUS303/304)	Metric (Fine) Thread	1D / 1.5D / 2D / 2.5D / 3D	Light Metal / Cast Iron / Resin General	Provided	-	-	Low Quantity (Available beginning with 1 pc.) / Box, Pkg.	-

From: ₹ 80.49
Days to Ship: 5 Day(s) or more

5 Day(s) or more

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Lock Type Sprew (Other, Fine)【10 Pieces Per Package】

SUNCO

[Material] Stainless steel
[Thread size M] 10, 12, 24

Screw Dia. M (after insertion)(mm)	Environmentally friendly	Type	Characteristics/Applications	Material	Screw Type	Length L (after insertion) (D = Thread Dia. M)	Application	Notch	Thread Dia. (After inserted), Unified(inch)	Shape	Sales Unit	Cleaning Method
10	-	Standard	-	Stainless Steel (SUS303/304)	Metric (Fine) Thread	1.5D	-	Provided	-	-	Box, Pkg.	-

From: ₹ 94.72
Days to Ship: 6 Day(s) or more

6 Day(s) or more

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Sprue (Fine, P=1.25)【1-100 Pieces Per Package】

NIPPON SPREW

Screw reinforcement made from a coiled, rhombic section stainless steel wire. Highly reliable fastening is achieved through ingenious use of spring action.

Screw Dia. M (after insertion)(mm)	Environmentally friendly	Type	Characteristics/Applications	Material	Screw Type	Length L (after insertion) (D = Thread Dia. M)	Application	Notch	Thread Dia. (After inserted), Unified(inch)	Shape	Sales Unit	Cleaning Method
10 ～ 20	-	Standard	-	Stainless Steel (SUS303/304)	Metric (Fine) Thread	1D / 1.5D / 2D	Light Metal	Provided	-	-	Low Quantity (Available beginning with 1 pc.) / Box, Pkg.	-

From: ₹ 102.71
Days to Ship: 5 Day(s) or more

5 Day(s) or more

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Ensat, 3-Hole / Long Size, 308 Type, Stainless Steel

SUNCO

[Nominal M] 16
[Material] Stainless Steel
[Surface Processing] None

Screw Dia. M (after insertion)(mm)	Environmentally friendly	Type	Characteristics/Applications	Material	Screw Type	Length L (after insertion) (D = Thread Dia. M)	Application	Notch	Thread Dia. (After inserted), Unified(inch)	Shape	Sales Unit	Cleaning Method
16	-	Self-Tapping	-	Stainless Steel (SUS303/304)	Metric (Fine) Thread	-	-	Not Provided	-	3-Hole Type	Low Quantity (Available beginning with 1 pc.)	-

From: ₹ 1,765.81
Days to Ship: 5 Day(s) or more

5 Day(s) or more

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Lock Type Sprew (Fine)【10 Pieces Per Package】

SUNCO

[Material] Stainless steel
[Thread size M] 10, 12, 14, 16, 18, 20, 22

Screw Dia. M (after insertion)(mm)	Environmentally friendly	Type	Characteristics/Applications	Material	Screw Type	Length L (after insertion) (D = Thread Dia. M)	Application	Notch	Thread Dia. (After inserted), Unified(inch)	Shape	Sales Unit	Cleaning Method
12	-	Standard	-	Stainless Steel (SUS303/304)	Metric (Fine) Thread	1.5D	-	Provided	-	-	Box, Pkg.	-

From: ₹ 141.44
Days to Ship: 6 Day(s) or more

6 Day(s) or more

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Recoil Packet for Spark Plugs【10 Pieces Per Package】

RECOIL

The spark plug kit contains a pilot tap. Thread diameter (after insertion) M (mm) 14 types: Threaded insert / Thread type: Fine / Material: SUS304 / Unit of purchase: Box/pack

Screw Dia. M (after insertion)(mm)	Environmentally friendly	Type	Characteristics/Applications	Material	Screw Type	Length L (after insertion) (D = Thread Dia. M)	Application	Notch	Thread Dia. (After inserted), Unified(inch)	Shape	Sales Unit	Cleaning Method
14	-	Standard	-	Stainless Steel (SUS303/304)	Metric (Fine) Thread	-	-	-	-	-	Box, Pkg.	-

From: ₹ 145.23
Days to Ship: 5 Day(s) or more

5 Day(s) or more

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Sprue Insertion Tool INP Narrow Eye

SUNCO

[Outer Diameter - Pitch] M8-1.0, M10-1.25, M12-1.25, M14-1.5, M16-1.5, M18-1.5, M20-1.5

Screw Dia. M (after insertion)(mm)	Environmentally friendly	Type	Characteristics/Applications	Material	Screw Type	Length L (after insertion) (D = Thread Dia. M)	Application	Notch	Thread Dia. (After inserted), Unified(inch)	Shape	Sales Unit	Cleaning Method
8 ～ 20	-	Tool	-	-	Metric (Fine) Thread	-	-	-	-	-	Low Quantity (Available beginning with 1 pc.)	-

From: ₹ 6,640.80
Days to Ship: 6 Day(s) or more

6 Day(s) or more


Brand
Product Series
CAD
From
Days to Ship
Screw Dia. M (after insertion)(mm)
Environmentally friendly
Type
Characteristics/Applications
Material
Screw Type
Length L (after insertion) (D = Thread Dia. M)
Application
Notch
Thread Dia. (After inserted), Unified(inch)
Shape
Sales Unit
Cleaning Method

	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare
Brand	MISUMI	RECOIL	SUNCO	RECOIL	ACCURATE	TSUGAMI	SUNCO	NIPPON SPREW	SUNCO	SUNCO	RECOIL	SUNCO
Product Series	Thread Inserts	Recoil Packet (Milli)【5-10 Pieces Per Package】	Stainless Steel E-Sert Fine (Hemlock-Made)【1-100 Pieces Per Package】	Recoil-Free (Specified mm) SUS304	Tangless Insert Metric Coarse	E-Sert Fine	Lock Type Sprew (Other, Fine)【10 Pieces Per Package】	Sprue (Fine, P=1.25)【1-100 Pieces Per Package】	Ensat, 3-Hole / Long Size, 308 Type, Stainless Steel	Lock Type Sprew (Fine)【10 Pieces Per Package】	Recoil Packet for Spark Plugs【10 Pieces Per Package】	Sprue Insertion Tool INP Narrow Eye
CAD	2D / 3D
From	₹ 34.88	₹ 493.25	₹ 58.40	₹ 90.00	₹ 557.00	₹ 80.49	₹ 947.20	₹ 102.71	₹ 1,765.81	₹ 1,414.40	₹ 1,452.25	₹ 6,640.80
Days to Ship	6 Day(s) or more	5 Day(s) or more	5 Day(s) or more	5 Day(s) or more	7 Day(s) or more	5 Day(s) or more	6 Day(s) or more	5 Day(s) or more	5 Day(s) or more	6 Day(s) or more	5 Day(s) or more	6 Day(s) or more
Screw Dia. M (after insertion)(mm)	6 ～ 18	8 ～ 20	6 ～ 39	8 ～ 24	16 ～ 20	10 ～ 16	10	10 ～ 20	16	12	14	8 ～ 20
Environmentally friendly	-	-	-	-	-	-	-	-	-	-	-	-
Type	Standard	Standard	Standard	Standard	Tangless	Standard	Standard	Standard	Self-Tapping	Standard	Standard	Tool
Characteristics/Applications	-	-	-	-	-	-	-	-	-	-	-	-
Material	Stainless Steel (SUS303/304)	Stainless Steel (SUS303/304)	Stainless Steel (SUS303/304)	Stainless Steel (SUS303/304)	Stainless Steel (SUS303/304)	Stainless Steel (SUS303/304)	Stainless Steel (SUS303/304)	Stainless Steel (SUS303/304)	Stainless Steel (SUS303/304)	Stainless Steel (SUS303/304)	Stainless Steel (SUS303/304)	-
Screw Type	Metric (Fine) Thread	Metric (Fine) Thread	Metric (Fine) Thread	Metric (Fine) Thread	Metric (Fine) Thread	Metric (Fine) Thread	Metric (Fine) Thread	Metric (Fine) Thread	Metric (Fine) Thread	Metric (Fine) Thread	Metric (Fine) Thread	Metric (Fine) Thread
Length L (after insertion) (D = Thread Dia. M)	1D / 1.5D / 2D / 3D	1D / 1.5D / 2D	1D / 1.5D / 2D / 2.5D	1D / 1.5D / 2D	1D	1D / 1.5D / 2D / 2.5D / 3D	1.5D	1D / 1.5D / 2D	-	1.5D	-	-
Application	Light Metal	Light Metal	-	Light Metal	Light Metal / Cast Iron / Resin General	Light Metal / Cast Iron / Resin General	-	Light Metal	-	-	-	-
Notch	Provided	Provided	Provided	Provided	Not Provided	Provided	Provided	Provided	Not Provided	Provided	-	-
Thread Dia. (After inserted), Unified(inch)	-	-	-	-	-	-	-	-	-	-	-	-
Shape	-	-	Standard	-	-	-	-	-	3-Hole Type	-	-	-
Sales Unit	Low Quantity (Available beginning with 1 pc.)	Box, Pkg.	Low Quantity (Available beginning with 1 pc.) / Box, Pkg.	Low Quantity (Available beginning with 1 pc.)	-	Low Quantity (Available beginning with 1 pc.) / Box, Pkg.	Box, Pkg.	Low Quantity (Available beginning with 1 pc.) / Box, Pkg.	Low Quantity (Available beginning with 1 pc.)	Box, Pkg.	Box, Pkg.	Low Quantity (Available beginning with 1 pc.)
Cleaning Method	-	-	-	-	-	-	-	-	-	-	-	-

Configure

Specification/Dimensions

Screw Dia. M (after insertion)(mm)
1.4

1.6

1.7

2

2.2

2.5

2.6

3

3.5

4

5

6

6a

7

8

9

10

11

12

14

15

16

18

20

22

24

27

30

36

39

42
Drawing

Clear

Environmentally friendly
- RoHS Compliant (10 Substances)
Clear

Type
- Standard
- Tangless
- Self-Tapping
- Tool
- Swaged
- Press Fit
Images

Clear

Characteristics/Applications
Clean Washed
Details

Clear

Material
- Steel
- Stainless Steel (SUS303/304)
- Stainless Steel (SUS316)
- Stainless Steel (SUS430F)
- Brass
- Phosphor Bronze
- Inconel X-750
- Nitrox 60
- Aluminum
- Nylon
Clear

Screw Type
- Metric (Coarse) Thread
- Metric (Fine) Thread
- Unified (Coarse) Thread
- Unified (Fine) Thread
- BSW (Coarse) Thread
Clear

Length L (after insertion) (D = Thread Dia. M)
- 1D
- 1.5D
- 2D
- 2.5D
- 3D
- 0.5D
- 0.7D
- 0.8D
- 3.5D
- 4D
Drawing

Clear

Application
- Light Metal
- Cast Iron
- Resin General
Clear

Notch
- Not Provided
- Provided
Clear

Thread Dia. (After inserted), Unified(inch)
1"-12

1"-8

1/2

1/2"

1/2-20

1/2-13

1/4

1/4"

1/4-28

1/4-20

2

3/4-16

3/4-10

3/8

3/8"

3/8-24

3/8-16

4

#4-48

#4-40

5/8

5/8"

5/8-18

5/8-11

5/16

5/16"

5/16-24

5/16-18

6

#6-40

#6-32

7/8-14

7/8-9

7/16"

7/16-20

7/16-14

8

No. 8

#8-36

#8-32

9/16-18

10

No. 10

#10-32

#10-24

#12-24
Clear