(!)Due to Microsoft's end of support for Internet Explorer 11 on 15/06/2022, this site does not support the recommended environment.

Our Business Hours:
Mon. - Fri. 8 a.m. - 6 p.m.

All Categories

Applications

inCAD Library

Brands

Brand List

Webcode Seach | Series: #CODE

Keyword suggestions

Part number suggestions

Discontinued Products

Need Help?

Order/Quote

Order

Order

/ Order
/ Order

Part Number Checker

Catalog Request

How can we improve?

How can we improve?

Comments

Name (Optional)

E-mail Address (Optional)

Tel (Optional)

While we are not able to respond directly to comments submitted in this form, the information will be reviewed for future improvement.

Customer Privacy Policy

Thank you for your cooperation.

While we are not able to respond directly to comments submitted in this form, the information will be reviewed for future improvement.
Please use the inquiry form.

Customer Privacy Policy

Lock Nuts（Page2）

70 items

: 30; 45; 60

Days to Ship	All Same day 6 Days or Less 8 Days or Less 9 Days or Less 10 Days or Less 11 Days or Less 13 Days or Less 16 Days or Less 17 Days or Less 41 Days or Less

Triple Lock【1-2,500 Pieces Per Package】

Kishu Fastner

Prevailing lock nut. Mainly used on automobiles, load-carrying trays, casters, etc.

Volume Discount
Days to Ship: 8 Days or more
Small Three Lock【700 Pieces Per Package】

Kishu Fastner

Small version of prevailing lock nuts. Mainly used on automobiles, load-carrying trays, casters, etc.

Volume Discount
Days to Ship: 8 Days or more
Small (Fine Thread) Triple Lock【250 Pieces Per Package】

Kishu Fastner

Small (fine thread) version of prevailing lock nuts. Mainly used on automobiles, load-carrying trays, casters, etc.

Volume Discount
Days to Ship: 8 Days or more
Stable Nut【1-2,000 Pieces Per Package】

Sowa

Fastened material is suitable for the fastening of soft objects or fragile objects. Intermediate locking it is possible. Spring washer is not required.

Volume Discount
Days to Ship: 8 Days or more
Nylon Nut (Type 1, Small Size, Fine Details)

Lock Fastener

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

Volume Discount
Days to Ship: 8 Days or more
Nylon Nut (Type 1)【1-3,000 Pieces Per Package】

Tomoe

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

Volume Discount
Days to Ship: 8 Days or more
Nylon Nut (Type 1, Small Size)【1-500 Pieces Per Package】

Tomoe

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

Volume Discount
Days to Ship: 8 Days or more
Nylon Nut (Type 1, Small Size, Fine Details)【1-150 Pieces Per Package】

Tomoe

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

Volume Discount
Days to Ship: 8 Days or more
Ida Ring, Whitworth

Sunco

A locking nut used with standard nuts. Does not come loose when subject to vibrational impact. Easy to remove and can be reused with no change in effectiveness.

Volume Discount

CAD ：

2D / 3D
Days to Ship: 8 Days or more
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.

Volume Discount
Days to Ship: 8 Days or more
E-Lock Nut【1-600 Pieces Per Package】

Sunco

[Materials] Steel, Stainless steel
[Surface treatment] None, trivalent chromate

Volume Discount
Days to Ship: 8 Days or more
Fine, Small E-Lock Nut

Sunco

[Materials] Steel, Stainless steel
[Surface treatment] None, trivalent chromate

Volume Discount
Days to Ship: 8 Days or more
U-Nut Unified (UNC)【1-2,000 Pieces Per Package】

Fuji Seimitsu

Definitive edition of Locking Nuts

Volume Discount
Days to Ship: 8 Days or more
U Nut, Unified (UNF)【1-2,000 Pieces Per Package】

Fuji Seimitsu

Definitive edition of Locking Nuts

Volume Discount
Days to Ship: 8 Days or more
Left-Handed U-Nut【1-3,000 Pieces Per Package】

Fuji Seimitsu

The definite locking nuts
For complete product overview and details on Left-Handed U-Nut see the sections below:

Volume Discount
Days to Ship: 8 Days or more
Small U-Nut【1-1,400 Pieces Per Package】

Fuji Seimitsu

Definitive edition of Locking Nuts

Volume Discount
Days to Ship: 8 Days or more
U Nut Thin Special Pitch P=1.5

Fuji Seimitsu

[Nominal Thread (M)] 12
[Materials] Steel Thread
[Type]Metric fine, Application/Function, Locking
[Sales unit] Minimum Quantity (Available for Purchase from 1 pc), Locking for Detail, U-nut
[Pitch (mm)] 1.5
[Surface treatment](Details) Bright Chromate Plating

Volume Discount
Days to Ship: 8 Days or more
Thin, Fine U-Nut【1-800 Pieces Per Package】

Fuji Seimitsu

Definitive edition of Locking Nuts

Volume Discount
Days to Ship: Same day or more

Show Stock Products
Fine Welded U-Nut

Fuji Seimitsu

Definitive edition of Locking Nuts

Volume Discount
Days to Ship: 8 Days or more
U Nut【1-20 Pieces Per Package】

Trusco Nakayama

[Features]
- The metallic friction ring makes contact with the thread on the bolt, increasing torque on the thread and preventing loosening. - Heat resistant, usable in locations with vibration, and reusable.

[Use]
- For locations where bolts can easily loosen.

Volume Discount
Days to Ship: 8 Days or more
Hex Nut "Hard Lock Nut" (with Rim/Trivalent Chromate)【1-15 Pieces Per Package】

Trusco Nakayama

[Features]
• Almost completely eliminates bolt rotation, resulting in near perfect anti-loosening properties
• Firmly fixes male screws in place, even mid-thread
• Reusable
• Protects bolts from bending, and can extend the service life of the fastening
• Optimal for fastening differing materials (wood, plastic, etc.) that may cause vibration

Volume Discount
Days to Ship: 8 Days or more
K Nut with Washer【80-1,000 Pieces Per Package】

KFC

[Features]
• Friction rings apply firm pressure on the screw threads when tightening, with an excellent anti-loosening effect
• Simplifies work processes and material management
• Passes tests specified in NASA standards NAS3350 and NAS3354

[Applications]
• Locations subject to constant vibration, such as roads and railroads
• Hanging ceiling bolts and ceiling racks
• Mounting support brackets for cables

Volume Discount
Days to Ship: 8 Days or more
Locking K Nut【25-1,000 Pieces Per Package】

KFC

[Features]
- Friction rings firmly press screw threads when tightening nuts, preventing them from coming loose.
- Handled like a standard nut; no special tools required.
- Compliant with NASA-standard NAS3350 and NAS3354 testing.

[Use]
- Locations with constant vibration, such as roads and railroads
- Ceiling-hung bolts and racks
- Mounting support brackets for cables

Volume Discount
Days to Ship: 8 Days or more
Hex Nylon Nut - Inch Size

Saima

A nut. Standardized in inches.

Volume Discount
Days to Ship: 10 Days or more
Theft Prevention Nut SHNRS

NBK

Nut for theft prevention.
Do not use with flat washers or spring washers.
Do not apply lubricant such as grease or oil to the bolts or nuts.
Use when the seating surface is in sufficient contact with the mating material.

Volume Discount
Days to Ship: 11 Days or more

Days to Ship:	8 Days or more

Days to Ship:	8 Days or more

Days to Ship:	8 Days or more

Days to Ship:	8 Days or more

Days to Ship:	8 Days or more

Days to Ship:	8 Days or more

Days to Ship:	8 Days or more

Days to Ship:	8 Days or more

Days to Ship:	8 Days or more

Days to Ship:	8 Days or more

Days to Ship:	8 Days or more

Days to Ship:	8 Days or more

Days to Ship:	8 Days or more

Days to Ship:	8 Days or more

Days to Ship:	8 Days or more

Days to Ship:	8 Days or more

Days to Ship:	8 Days or more

Days to Ship:	Same day or more

Days to Ship:	8 Days or more

Days to Ship:	8 Days or more

Days to Ship:	8 Days or more

Days to Ship:	8 Days or more

Days to Ship:	8 Days or more

Days to Ship:	10 Days or more

Days to Ship:	11 Days or more


Brand
Product Series
CAD
Days to Ship
Nominal of Thread (M)
Material
Surface Treatment
Thread ridge type
Application / function
Sales Unit
Nominal of Thread (inch)
Surface Treatment (Details)
Hex nut standard
Locking Type


Brand	Kishu Fastner	Kishu Fastner	Kishu Fastner	Sowa	Lock Fastener	Tomoe	Tomoe	Tomoe	Sunco	Sunco	Sunco	Sunco	Fuji Seimitsu	Fuji Seimitsu	Fuji Seimitsu	Fuji Seimitsu	Fuji Seimitsu	Fuji Seimitsu	Fuji Seimitsu	Trusco Nakayama	Trusco Nakayama	KFC	KFC	Saima	NBK
Product Series	Triple Lock【1-2,500 Pieces Per Package】	Small Three Lock【700 Pieces Per Package】	Small (Fine Thread) Triple Lock【250 Pieces Per Package】	Stable Nut【1-2,000 Pieces Per Package】	Nylon Nut (Type 1, Small Size, Fine Details)	Nylon Nut (Type 1)【1-3,000 Pieces Per Package】	Nylon Nut (Type 1, Small Size)【1-500 Pieces Per Package】	Nylon Nut (Type 1, Small Size, Fine Details)【1-150 Pieces Per Package】	Ida Ring, Whitworth	Thin, Lead Locking Nut【1,800 Pieces Per Package】	E-Lock Nut【1-600 Pieces Per Package】	Fine, Small E-Lock Nut	U-Nut Unified (UNC)【1-2,000 Pieces Per Package】	U Nut, Unified (UNF)【1-2,000 Pieces Per Package】	Left-Handed U-Nut【1-3,000 Pieces Per Package】	Small U-Nut【1-1,400 Pieces Per Package】	U Nut Thin Special Pitch P=1.5	Thin, Fine U-Nut【1-800 Pieces Per Package】	Fine Welded U-Nut	U Nut【1-20 Pieces Per Package】	Hex Nut "Hard Lock Nut" (with Rim/Trivalent Chromate)【1-15 Pieces Per Package】	K Nut with Washer【80-1,000 Pieces Per Package】	Locking K Nut【25-1,000 Pieces Per Package】	Hex Nylon Nut - Inch Size	Theft Prevention Nut SHNRS
CAD									2D / 3D
Days to Ship	8 Days or more	8 Days or more	8 Days or more	8 Days or more	8 Days or more	8 Days or more	8 Days or more	8 Days or more	8 Days or more	8 Days or more	8 Days or more	8 Days or more	8 Days or more	8 Days or more	8 Days or more	8 Days or more	8 Days or more	Same day or more Show Stock Products	8 Days or more	8 Days or more	8 Days or more	8 Days or more	8 Days or more	10 Days or more	11 Days or more
Nominal of Thread (M)	5 ～ 20	8	12	4 ～ 20	10	2 ～ 30	8	10 ～ 12	-	6	5 ～ 12	10	-	-	6 ～ 20	8	12	8 ～ 18	12	4 ～ 20	6 ～ 20	5 ～ 16	5 ～ 24	-	M10 × 1.25
Material	Steel	Steel	Steel	Stainless Steel ～ Steel	Stainless Steel	Brass ～ Steel	Steel	Steel	Stainless Steel ～ Steel	Steel	Stainless Steel ～ Steel	Steel	Stainless Steel ～ Steel	Stainless Steel ～ Steel	Stainless Steel ～ Steel	Steel	Steel	Steel	Steel	Stainless Steel ～ Steel	Steel	Stainless Steel ～ Steel	Stainless Steel ～ Steel	Stainless Steel	Stainless Steel
Surface Treatment	Trivalent Chromate / Bright Chromate Plating / Chromate Plating	Trivalent Chromate	Trivalent Chromate	No / Trivalent Chromate / Bright Chromate Plating / Zinc Plating / Chromate Plating	No	No / Trivalent Chromate / Bright Chromate Plating / Chromate Plating / Nickel Plating	Trivalent Chromate / Bright Chromate Plating / Chromate Plating	Trivalent Chromate / Bright Chromate Plating / Chromate Plating	No / Chromate Plating	Trivalent Chromate	No / Trivalent Chromate	Trivalent Chromate	-	-	-	-	-	-	-	-	-	No / Zinc Plating	No / Zinc Plating	Passivated	No
Thread ridge type	Metric coarse	Metric coarse	Metric fine	Metric coarse	Metric fine	Metric coarse	Metric coarse	Metric fine	Whitworth Coarse	Metric coarse	Metric coarse	Metric fine	Unified coarse UNC	Unify Fine UNF	Metric coarse (Left)	Metric fine	Metric fine	Metric fine	Metric fine	Metric coarse	Metric coarse	Metric coarse	Metric coarse	Unified coarse UNC / Unify Fine UNF	Metric fine
Application / function	Stop loosening	Stop loosening	Stop loosening	Stop loosening	Stop loosening	Stop loosening	Stop loosening	Stop loosening	General	Stop loosening	Stop loosening	Stop loosening	Stop loosening	Stop loosening	Stop loosening	Stop loosening	Stop loosening	Stop loosening	For welding	Stop loosening	Fall Prevention	Stop loosening	Stop loosening	Stop loosening	-
Sales Unit	Low Quantity Available beginning with 1 pc. / Box/package	Box/package	Box/package	Low Quantity Available beginning with 1 pc. / Box/package	-	Low Quantity Available beginning with 1 pc. / Box/package	-	-	Low Quantity Available beginning with 1 pc.	Box/package	Low Quantity Available beginning with 1 pc. / Box/package	Low Quantity Available beginning with 1 pc.	Low Quantity Available beginning with 1 pc. / Box/package	Low Quantity Available beginning with 1 pc. / Box/package	Low Quantity Available beginning with 1 pc. / Box/package	Low Quantity Available beginning with 1 pc. / Box/package	Low Quantity Available beginning with 1 pc.	Low Quantity Available beginning with 1 pc. / Box/package	Low Quantity Available beginning with 1 pc.	-	-	Box/package	Box/package	Box/package	Low Quantity Available beginning with 1 pc.
Nominal of Thread (inch)	-	-	-	-	-	-	-	-	1/2 ～ 5/8	-	-	-	1 ～ 7/16	1/2 ～ 7/8	-	-	-	-	-	-	-	-	-	NO.12 ～ NO.8	-
Surface Treatment (Details)	Trivalent Chromate / Bright Chromate Plating / Chromate Plating	Trivalent Chromate	Trivalent Chromate	No / Trivalent Chromate / Bright Chromate Plating / Hot Zinc Plating / Chromate Plating	No	Other Special Processings / No / Trivalent Chromate / Bright Chromate Plating / Chromate Plating / Nickel Plating	Trivalent Chromate / Bright Chromate Plating / Chromate Plating	Trivalent Chromate / Bright Chromate Plating / Chromate Plating	No / Chromate Plating	Trivalent Chromate	No / Trivalent Chromate	Trivalent Chromate	No / Bright Chromate Plating / Chromate Plating	No / Bright Chromate Plating / Chromate Plating	No / Trivalent Chromate / Bright Chromate Plating / Chromate Plating	No / Trivalent Chromate / Bright Chromate Plating / Chromate Plating	Chromate Plating	No / Trivalent Chromate / Bright Chromate Plating / Chromate Plating	No	Trivalent Chromate / Bright Chromate Plating	Trivalent Chromate	No / Hot Zinc Plating	No / Hot Zinc Plating	Passivated	-
Hex nut standard	-	-	-	A Type ～ Two Types	A Type	A Type	A Type	A Type	-	Two Types	-	-	-	-	-	-	-	-	-	-	-	A Type	A Type	Two Types	-
Locking Type	Other Special Shapes	Other Special Shapes	Other Special Shapes	Friction Nut	Nylon Nut	Nylon Nut	Nylon Nut	Nylon Nut	-	Friction Nut	Friction Nut	Friction Nut	U Nut	U Nut	U Nut	U Nut	U Nut	U Nut	U Nut	U Nut	Hard Locking Bearing Nuts	Other Special Shapes	Friction Nut	Nylon Nut	-