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Notice of End of Sales for Economy Series Pneumatic Equipment Category. More information.
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Lock Nuts（Hex Nut Type：Class 2）

Category page for Lock Nuts/Non-Loosening Nuts. For MISUMI, you can select from M1 to 64, 5 types of material and 10 types of surface processing.
Selection is also possible based on loosening prevention method (friction ring/spring/nylon, etc.).

[Lock Nuts/Non-Loosening Nuts]
These products prevent bolts from loosening by adding a locking mechanism to the nut body. Mechanism and characteristics of the loosening prevention mechanism differ depending on the brand.

Configure

Specification/Dimensions

Nominal of Thread (M)
2

2.6

3

4

5

6

8

10

M10x0.75

12

M12x1.0

14

M15x1.0

16

M17x1.0

18

20

M20x1.0

22

24

M25x1.5

27

30

M30x1.5

33

M35x1.5

36

39

M40x1.5

42

45

M45x1.5

48

M50x1.5

52

56

60

64

M95x2.0

M100x2.0

M105x2.0

M110x2.0

M115x2.0

M120x2.0

M125x2.0

M130x2.0

M135x2.0

M140x2.0

M145x2.0

M150x2.0
Clear

Material
Brass

Brass

Stainless Steel

Steel

Titanium
Clear

Applications, Functions
- Standard
- Lock
- For Welding
- Fall-off Prevention
Clear

Thread Type
- Metric, Coarse
- Metric, Coarse (Left)
- Metric, Fine
- Unified, Coarse (UNC)
- Unified, Fine (UNF)
- Whit, Coarse
Clear

Surface Treatment
- Not Provided
- Electroless Nickel Plating
- Trivalent Chromate
- Bright Chrome Plating
- Zinc Plating
- Chromate Plating
- Nickel Plating
- Chrome Plating
- Parkerizing
- Polishing
- Painting, Coating
- Passivated
Clear

Sales Unit
Low Quantity (Available beginning with 1 pc.)

Box, Pkg.
Clear

Locking Details
- U Nut
- Hard Lock Nut
- Friction Nut
- Nylon Nut
- Spring Nut
- Other Special Shapes
Clear

Nominal of Thread (inch)
1

1 1/8

1/2

1/4

No. 2

3/4

3/8

No. 4

5/8

5/16

No. 6

7/8

7/16

No. 8

No. 10

No. 12
Clear

Surface Treatment (Details)
- Not Provided
- Electroless Nickel Plating
- Trivalent Chromate
- Bright Chrome Plating
- Hot Zinc Plating
- Chromate Plating
- Nickel Plating
- Chrome Plating
- Parkerizing
- Barrel, Passivated
- Special Chemical Grinding
- Seizure-Against Coating
- Other Special Treatment
Clear

Hex Nut Type
Class 1

Class 2

Class 3
Clear

Brand	(0) (0) ESCO (0) FESTO (0) FORTUNE BRIGHT (0) FUJI SEIMITSU (4) HARDLOCK INDUSTRY (0) KFC (0) KHI (0) KISHU FASTENER (1) KST (0) LOCKFASTENER (0) NBK (0) OHSATO (0) RS Pro (0) SAIMA CORPORATION (1) SAKAMURA (0) SATO RASHI (0) SOHWA SEISAKUSHO (1) SUNCO (10) TOMOE KOGYO (1) TRUSCO (0) YAHATA (0)
Filter By	All Sale Items
CAD	2D 3D
Days to Ship	All Same day 1 Day(s) or Less 3 Day(s) or Less 4 Day(s) or Less 5 Day(s) or Less Others

18 items

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: 30; 60; 90

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Until 31/03/2025

U Nut Class 1 and 2 (Steel/SUS304)【1-2,500 Pieces Per Package】

FUJI SEIMITSU

Definitive edition of Locking Nuts

From: ฿ 13.62
Special Price
Days to Ship: Same day

Same day

Compare

U Nut Type 1 (Fine Details)【1-65 Pieces Per Package】

FUJI SEIMITSU

Definitive edition of Locking Nuts

From: ฿ 225.90
Days to Ship: 5 Day(s)

5 Day(s)

Compare

Until 31/03/2025

U Nut Type 2 (Fine Details)【1-120 Pieces Per Package】

FUJI SEIMITSU

Definitive edition of Locking Nuts

From: ฿ 71.23
Special Price
Days to Ship: Same day

Same day

Compare

U Nut

SUNCO

U nut with metal ring locking function.
[Features]
· U nut made from two points : the nut body and friction ring (special spring).
· The friction ring is fixed on the upper surface of the nut by crimping and integrated.
[Applications]
· Active in all industries from steel structures such as railways and connecting bridges to cars, motorcycles, and industrial machinery.
[Materials] Steel/Stainless Steel/S45C/Titanium/SCM435(H)
[Surface Processing] Trivalent White/Trivalent Black/None
[Nominal of Thread (M)] 5/10/12/14/16/18/24/30/36/42
[Application/Function] Loosening prevention
[Thread Ridge Type] Metric Coarse/Metric Fine
[Loosening Prevention Details] Friction Nut

From: ฿ 53.34
Days to Ship: 5 Day(s)

5 Day(s)

Compare

Until 31/03/2025

Lead Lock Nut【200-7,000 Pieces Per Package】

SUNCO

If necessary, it can be removed when required, and it does not become loose even it is shaken intensely during use, the lead lock nut is a product that resolves this contradictory duality well.

From: ฿ 2,709.68
Special Price
Days to Ship: 5 Day(s)

5 Day(s)

Compare

Flanged Lead Lock Nut【400-1,500 Pieces Per Package】

SUNCO

Lead lock nut which is easy to remove while remaining secure even when subjected to strong shaking force.

From: ฿ 3,870.97
Days to Ship: 5 Day(s)

5 Day(s)

Compare

Until 31/03/2025

Nylon Nut (Type 2)【1-2,000 Pieces Per Package】

TOMOE KOGYO

Frictional force generated between the nylon ring and the screw part of the bolt reduces shock and vibration and prevents the screw from loosening.

From: ฿ 5.81
Special Price
Days to Ship: Same day

Same day

Compare

Hex Nylon Nut - Inch Size

SAIMA CORPORATION

A nut. Standardized in inches.

From: ฿ 30.10
Days to Ship: 5 Day(s)

5 Day(s)

Compare

U Nut (Fine)

SUNCO

U-nut (fine) with metal ring locking function.
[Features]
· U nut made from two points: the nut body and friction ring (special spring).
· The friction ring is fixed on the upper surface of the nut by crimping and integrated.
[Applications]
· Active in all industries from steel structures such as railways and connecting bridges to cars, motorcycles, and industrial machinery.
[Materials] Steel
[Surface Processing] Trivalent White/Trivalent Black
[Nominal of Thread (M)] 12/20/22/24/30/36/39/42
[Application/Function] Loosening prevention
[Thread Ridge Type] Metric fine
[Loosening Prevention Details] U Nut

From: ฿ 48.00
Days to Ship: 6 Day(s)

6 Day(s)

Compare

U Nut (Fine P=1.5)

SUNCO

U-nut with metal ring locking function (fine P=1.5).
[Features]
· U nut made from two points : the nut body and friction ring (special spring).
· The friction ring is fixed on the upper surface of the nut by crimping and integrated.
[Applications]
· Active in all industries from steel structures such as railways and connecting bridges to cars, motorcycles, and industrial machinery.
[Materials] Steel.
[Surface Processing] None/Bright Chromate Plating/Trivalent White/Trivalent Black.
[Nominal of Thread (M)] 12/30.
[Application/Function] Loosening prevention.
[Thread Ridge Type] Metric Fine.
[Loosening Prevention Details] U Nut.

From: ฿ 49.94
Days to Ship: 6 Day(s)

6 Day(s)

Compare

Until 31/03/2025

Nylon Nut Type 2

SUNCO

[Materials] Equivalent to SWCH, Equivalent to SUS304.
[Surface treatment] None, trivalent chromate, bright chromate plating, chromate plating, nickel plating.
[Nominal designation of screw (M)] 5/6/8/10/12/12.
[Application/Function] Prevents loosening.
[Type of screw thread] Metric coarse.
[Details of locking] Nylon nut.

From: ฿ 2.70
Special Price
Days to Ship: Same day

Same day

Compare

Lead Lock Nut Fine【300 Pieces Per Package】

SUNCO

If necessary, it can be removed when required, and it does not become loose even it is shaken intensely during use, the lead lock nut is a product that resolves this contradictory duality well.

From: ฿ 3,737.30
Days to Ship: 5 Day(s)

5 Day(s)

Compare

Lead Lock Nut Small【800 Pieces Per Package】

SUNCO

If necessary, it can be removed when required, and it does not become loose even it is shaken intensely during use, the lead lock nut is a product that resolves this contradictory duality well.

From: ฿ 5,773.38
Days to Ship: 5 Day(s)

5 Day(s)

Compare

V-Lock Nut【1-4,000 Pieces Per Package】

KISHU FASTENER

Double Locking Nut - Definitive Edition Mainly used for light electrical appliances, housing, fences, buildings, etc.

From: ฿ 22.40
Days to Ship: 5 Day(s)

5 Day(s)

Compare

Iron and Stainless Steel Stable Nut【1-2,000 Pieces Per Package】

SOHWA SEISAKUSHO

Suitable for the fastening of soft or fragile materials. Capable of performing an intermediate lock. Does not require a spring lock washer, either.

From: ฿ 33.91
Days to Ship: 5 Day(s)

5 Day(s)

Compare

Thin, Lead Locking Nut【1,800 Pieces Per Package】

SUNCO

If necessary, it can be removed when required, and it does not become loose even it is shaken intensely during use, the lead lock nut is a product that resolves this contradictory duality well.

From: ฿ 9,754.84
Days to Ship: 5 Day(s)

5 Day(s)

Compare

Nut, Whitworth【80 Pieces Per Package】

FUJI SEIMITSU

Definitive edition of Locking Nuts

From: ฿ 12,498.82
Days to Ship: 5 Day(s)

5 Day(s)

Compare

V Lock Nut【1,500 Pieces Per Package】

SUNCO

[Material] Steel
[Surface Processing] Trivalent Stainless Coating
[Nominal of Thread (M)] 6
[Application/Function] Loosening prevention
[Thread Ridge Type] Metric Coarse
[Hex Nut Standard] Type 2
[Loosening Prevention Details] Friction Nut

From: ฿ 7,380.00
Days to Ship: 6 Day(s)

6 Day(s)


Brand
Product Series
CAD
From
Days to Ship
Nominal of Thread (M)
Material
Applications, Functions
Thread Type
Surface Treatment
Sales Unit
Locking Details
Nominal of Thread (inch)
Surface Treatment (Details)
Hex Nut Type

	You can add up to 6 items per a category to the compare list.Compare Until 31/03/2025	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 Until 31/03/2025	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 Until 31/03/2025	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 Until 31/03/2025	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 Until 31/03/2025	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	FUJI SEIMITSU	FUJI SEIMITSU	FUJI SEIMITSU	SUNCO	SUNCO	SUNCO	TOMOE KOGYO	SAIMA CORPORATION	SUNCO	SUNCO	SUNCO	SUNCO	SUNCO	KISHU FASTENER	SOHWA SEISAKUSHO	SUNCO	FUJI SEIMITSU	SUNCO
Product Series	U Nut Class 1 and 2 (Steel/SUS304)【1-2,500 Pieces Per Package】	U Nut Type 1 (Fine Details)【1-65 Pieces Per Package】	U Nut Type 2 (Fine Details)【1-120 Pieces Per Package】	U Nut	Lead Lock Nut【200-7,000 Pieces Per Package】	Flanged Lead Lock Nut【400-1,500 Pieces Per Package】	Nylon Nut (Type 2)【1-2,000 Pieces Per Package】	Hex Nylon Nut - Inch Size	U Nut (Fine)	U Nut (Fine P=1.5)	Nylon Nut Type 2	Lead Lock Nut Fine【300 Pieces Per Package】	Lead Lock Nut Small【800 Pieces Per Package】	V-Lock Nut【1-4,000 Pieces Per Package】	Iron and Stainless Steel Stable Nut【1-2,000 Pieces Per Package】	Thin, Lead Locking Nut【1,800 Pieces Per Package】	Nut, Whitworth【80 Pieces Per Package】	V Lock Nut【1,500 Pieces Per Package】
CAD					2D / 3D	2D / 3D					2D / 3D	2D / 3D	2D / 3D
From	฿ 13.62 Special Price On Sale Until 31/03/2025	฿ 225.90	฿ 71.23 Special Price On Sale Until 31/03/2025	฿ 53.34	฿ 2,709.68 Special Price On Sale Until 31/03/2025	฿ 3,870.97	฿ 5.81 Special Price On Sale Until 31/03/2025	฿ 30.10	฿ 48.00	฿ 49.94	฿ 2.70 Special Price On Sale Until 31/03/2025	฿ 3,737.30	฿ 5,773.38	฿ 22.40	฿ 33.91	฿ 9,754.84	฿ 12,498.82	฿ 7,380.00
Days to Ship	Same day	5 Day(s)	Same day	5 Day(s)	5 Day(s)	5 Day(s)	Same day	5 Day(s)	6 Day(s)	6 Day(s)	Same day	5 Day(s)	5 Day(s)	5 Day(s)	5 Day(s)	5 Day(s)	5 Day(s)	6 Day(s)
Nominal of Thread (M)	3 ～ 45	24 ～ 27	10 ～ 56	5 ～ 42	3 ～ 12	5 ～ 8	5 ～ 12	-	12 ～ 24	12 ～ 30	5 ～ 18	10	8	4 ～ 12	4 ～ 16	6	-	6
Material	Steel	Steel	Steel	Stainless Steel ～ Steel	Steel	Steel	Stainless Steel ～ Steel	Stainless Steel	Steel	Steel	Stainless Steel ～ Steel	Steel	Steel	Steel	Stainless Steel ～ Steel	Steel	Steel	Steel
Applications, Functions	Lock	Lock	Lock	Lock	Lock	Lock	Lock	Lock	Lock	Lock	Lock	Lock	Lock	Lock	Lock	Lock	Lock	Lock
Thread Type	Metric, Coarse	Metric, Fine	Metric, Fine	Metric, Coarse	Metric, Coarse	Metric, Coarse	Metric, Coarse	Unified, Coarse (UNC) / Unified, Fine (UNF)	Metric, Fine	Metric, Fine	Metric, Coarse	Metric, Fine	Metric, Coarse	Metric, Coarse	Metric, Coarse	Metric, Coarse	Whit, Coarse	Metric, Coarse
Surface Treatment	Not Provided / Electroless Nickel Plating / Trivalent Chromate / Bright Chrome Plating / Zinc Plating / Chromate Plating	-	-	Trivalent Chromate	Not Provided / Trivalent Chromate / Bright Chrome Plating / Chromate Plating	Not Provided / Trivalent Chromate / Bright Chrome Plating / Chromate Plating	Not Provided / Trivalent Chromate / Bright Chrome Plating / Chromate Plating	Passivated	Trivalent Chromate	Trivalent Chromate / Bright Chrome Plating	Trivalent Chromate / Bright Chrome Plating / Chromate Plating	Trivalent Chromate	Not Provided / Trivalent Chromate	Not Provided / Trivalent Chromate / Bright Chrome Plating / Zinc Plating / Chromate Plating	Not Provided / Trivalent Chromate / Bright Chrome Plating / Zinc Plating / Chromate Plating	Trivalent Chromate	-	Painting, Coating
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.) ～ Box, Pkg.	Low Quantity (Available beginning with 1 pc.)	Box, Pkg.	Box, Pkg.	Low Quantity (Available beginning with 1 pc.) ～ Box, Pkg.	Box, Pkg.	Low Quantity (Available beginning with 1 pc.)	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.) ～ Box, Pkg.	Low Quantity (Available beginning with 1 pc.) ～ Box, Pkg.	Box, Pkg.	Box, Pkg.	Box, Pkg.
Locking Details	U Nut	U Nut	U Nut	Friction Nut	Friction Nut	Friction Nut	Nylon Nut	Nylon Nut	U Nut	U Nut	Nylon Nut	Friction Nut	Friction Nut	Friction Nut	Friction Nut	Friction Nut	U Nut	Friction Nut
Nominal of Thread (inch)	-	-	-	-	-	-	-	No. 2 ～ No. 12	-	-	-	-	-	-	-	-	7/8	-
Surface Treatment (Details)	Not Provided / Electroless Nickel Plating / Trivalent Chromate / Bright Chrome Plating / Hot Zinc Plating / Chromate Plating	Not Provided / Trivalent Chromate / Bright Chrome Plating / Chromate Plating	Not Provided / Trivalent Chromate / Bright Chrome Plating / Chromate Plating	Trivalent Chromate	Not Provided / Trivalent Chromate / Bright Chrome Plating / Chromate Plating	Not Provided / Trivalent Chromate / Bright Chrome Plating / Chromate Plating	Not Provided / Trivalent Chromate / Bright Chrome Plating / Chromate Plating	Barrel, Passivated	Trivalent Chromate	Trivalent Chromate / Bright Chrome Plating	Trivalent Chromate / Bright Chrome Plating / Chromate Plating	Trivalent Chromate	Not Provided / Trivalent Chromate	Not Provided / Trivalent Chromate / Bright Chrome Plating / Hot Zinc Plating / Chromate Plating	Not Provided / Trivalent Chromate / Bright Chrome Plating / Hot Zinc Plating / Chromate Plating	Trivalent Chromate	Bright Chrome Plating	-
Hex Nut Type	Class 2	Class 2	Class 2	Class 2	Class 2	Class 2	Class 2	Class 2	Class 2	Class 2	Class 2	Class 2	Class 2	Class 2	Class 2	Class 2	Class 2	Class 2