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

• • On Sale Till 31/03/2025

  

  U-Nuts (Pack)

  MISUMI

  [Features]
  · Capable of stable anti-loosening effect. Prevents screws from falling off even when declines in axial tension.
  · Being a solid metal product, the nuts are highly resistant to heat and cold.
  · Simplified fastening task makes work management easier.
  · Easy parts management prevents inappropriate installation.
  · Reusable.
  [Materials] SS400, SUS304, Equivalent, SUS301.
  [Surfacetreatment] Trivalent bright chromate plating, Trivalent chromate.
  [Nominal of Thread (M)] 4, 5, 6, 8, 10, 12, 16.
  [Pitch] 0.7, 0.8, 1, 1.25, 1.5, 1.75, 2

  • Volume Discount

  CAD ：

  2D / 3D

  	Special Price
  Days to Ship:	Same day

• • On Sale Till 31/03/2025

  

  Self-Locking Nut

  KST

  The friction ring swaged on the top of the nut engages with the thread of the bolt, providing a high-performance loosening prevention function. Since no special tool is required for linking, workability is excellent.

  	Special Price
  Days to Ship:	Same day or more

• • On Sale Till 31/03/2025

  

  Double Locking Nuts

  MISUMI

  [Features]
  [Materials] SS400 equivalent, SUS304 equivalent, S45C equivalent, SCM435 equivalent.
  [Surface treatment] Trivalent chromate.
  [Height (mm)] 8, 10.6, 13.2, 16, 18.5, 20.

  • Volume Discount

  CAD ：

  2D / 3D

  	Special Price
  Days to Ship:	Same day

• 

  Nylon Nut (Type 1)

  LOCKFASTENER

  The included nylon ring is fitted with a male screw to prevent loosening due to rotation applied from various directions, direct vibration, and shock.

  Days to Ship:	Same day or more

• • On Sale Till 31/03/2025

  

  U Nut Class 1 and 2 (Steel/SUS304)

  FUJI SEIMITSU

  Definitive edition of Locking Nuts

  	Special Price
  Days to Ship:	Same day or more

• 

  HARDLOCK Nut (Fine Thread)

  SUNCO

  [Material] Stainless steel/S45C
  [Surface Processing] None / Trivalent White / Parkerizing (Phosphate Coating)
  [Nominal of Thread (M)] 10/14/16/18/20/24/30
  [Application/Function] Loosening prevention
  [Thread Ridge Type] Metric Fine
  [Loosening Prevention Details] Hard Lock Nut

  Days to Ship:	8 Day(s) or more

• 

  Type 1 U-Nut (SUS316L)

  FUJI SEIMITSU

  Prevailing torque type lock nut with "metal ring anti-loosening function".
  [Features]
  ·A locking nut that can be reused and exhibits a stable locking function.
  ·Prevents early disengagement even when the axial force is reduced. An all-metal product with excellent heat and cold resistance.
  ·Tightening is easy, and neither skilled techniques nor special tools are required.
  ·Since it exerts a self-locking effect by itself, parts management becomes easier and installation errors are prevented.
  [Applications]
  ·It is used in a wide range of industries, from steel structures such as railways and bridges to automobiles, motorcycles, and industrial machinery.
  ·In addition to its anti-loosening performance, it continues to evolve in terms of durability and vibration resistance, and works reliably in any operating environment.

  Days to Ship:	14 Day(s) or more

• 

  Hard Lock Nut

  SUNCO

  [Shape] Upper nut (convex type) and lower nut (concave type) are available.
  · The top nut is perfectly circular with respect to the bolt, but the bottom nut has been eccentrically machined off-center with respect to the bolt.
  [Features] Since the lower nut is eccentric, tightening the upper nut will apply a lateral force due to the wedging action. Friction to this male thread prevents loosening.
  · Can be manually tightened to your desired position.
  · Can be used repeatedly.
  
  [Material] Steel/S45C/SCM435 (H)
  [Surface Processing] Parkerizing (Phosphate Coating) / Trivalent White
  [Nominal of Thread (M)] 8/10/12/14/16/18/22/24/30/33/36/39/45/48/52/56/64
  [Application/Function] Loosening prevention
  [Thread Ridge Type] Metric Coarse
  [Loosening Prevention Details] Hard Lock Nut

  Days to Ship:	14 Day(s) or more

• 

  Stable Nut, Thin Type (Friction Nut)

  SOHWA SEISAKUSHO

  [Materials] SWCH equivalent, SUS304 equivalent.
  [Surface treatment] None, Trivalent chromate, bright chromate plating chromate plating.

  CAD ：

  2D / 3D

  Days to Ship:	16 Day(s) or more

• 

  U Nut, Unified (UNF)【1-2,000 Pieces Per Package】

  FUJI SEIMITSU

  Definitive edition of Locking Nuts

  Days to Ship:	14 Day(s) or more

• 

  U Nut Type 3

  FUJI SEIMITSU

  Thread
  [Type]Metric coarse, Application/Function, Locking, Locking for detail, U-nut
  [Nominal Thread (M)] 4 5 6 8 10 12 14 16 20
  [Materials] Steel, Stainless steel
  [Sales unit] Minimum Quantity (Available for Purchase from 1 pc) Box and Pkg.
  [Surface treatment](Details) non-trivalent chromate, trivalent black, trivalent white, bright chromate plating, chromate plating, black chromate
  [Pitch (mm)] 0.7 0.8 1 1.25 1.5 1.75 2 2.5

  Days to Ship:	14 Day(s) or more

• • On Sale Till 31/03/2025

  

  Lock Nut - SWUS

  NABEYA BI-TECH

  A nut with a high performance locking (loosening prevention) mechanism. This mechanism prevents loosening caused by vibration.

  CAD ：

  2D / 3D

  	Special Price
  Days to Ship:	Same day or more

• • On Sale Till 31/03/2025

  

  Hardlock Nut (Thread-Lock Nut)

  HARDLOCK INDUSTRY

  Some sizes are no longer available as they have been redesigned as a rimmed type. Please see the rimmed type if the size you are looking for is not available.
  [Features]
  ・ Anti-loosening effect recognized by the world.
  ・ Torque and axial force control is possible.
  ・ Can be used repeatedly.
  ・ Workability is simple and good.
  ・ Contributes to significant cost reduction.

  	Special Price
  Days to Ship:	Same day or more

• 

  U Nut Type 1 (Fine Details)

  FUJI SEIMITSU

  Definitive edition of Locking Nuts

  Days to Ship:	14 Day(s) or more

• 

  U Nut (Fine)

  SUNCO

  [Material] 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

  Days to Ship:	14 Day(s) or more

• 

  [Clean & Pack]U Nut - Single Item

  MISUMI

  Three types of cleaning methods are available: degreasing, precision cleaning, and electrolytic polishing + precision cleaning. They can be ordered from one piece with the standard part number.
  This eliminates the need for customer cleaning or outsourced cleaning, reducing the amount of time and effort required.

  ■Part Number for Clean & Pack Products

  ·Degreasing (Anti-rust single packing)	: Part Number SL-□□
  ·Precision cleaning (Degassing double packing)	: Part Number SH-□□
  ·Electrolytic polishing + precision cleaning (Degassing double packing)	: Part Number SHD-□□

  Product Part Number	Cleaning Method	Packaging Type	Effects Compared to Uncleaned Product	Environment (Standard)	Process
  SL-□□	Degreasing	Anti-rust packing	Oil removal	General environment	Regular assembly process
  					Post battery assembly process
  SH-□□	Precision cleaning	Degassing double packing	Oil removal Dust removal	Clean environment (Class 10 to 1,000)	Battery assembly process
  					LCD-related post assembly process
  					In-vehicle camera assembly process
  SHD-□□	Electrolytic polishing + precision cleaning	Degassing double packing	Oil removal Dust removal Outgas reduction	Vacuum environment Clean environment (Class 10 to 1,000)	Pre-semiconductor process
  					Liquid crystal deposition process
  					Pre-OLED process

  ■Notes
  Cleaning also removes rust prevention oil, which may make the product more susceptible to rusting than an uncleaned product.
  Please be careful about the application location and storage environment.

  • Volume Discount

  Days to Ship:	12 Day(s) or more

• 

  Semi-Flat Hard Locking Nut

  HARDLOCK INDUSTRY

  Nut that uses the principle of the wedge. Bolts and nuts are integrated, and any kinds of vibration and shock are kept away.

  Days to Ship:	14 Day(s) or more

• 

  H-1 Rimmed Hard Locking Nut

  HARDLOCK INDUSTRY

  A new standard in hard lock nuts. Mountability greatly improved by stopping concave nuts using the rim shape (flange).

  Days to Ship:	Same day or more

• 

  Fine Hard Locking Nut

  HARDLOCK INDUSTRY

  Nut that uses the principle of the wedge. Bolts and nuts are integrated, and any kinds of vibration and shock are kept away.

  Days to Ship:	14 Day(s) or more

• 

  Thin Hard Locking Nut

  HARDLOCK INDUSTRY

  Nut that uses the principle of the wedge. Bolts and nuts are integrated, and any kinds of vibration and shock are kept away.

  Days to Ship:	14 Day(s) or more

• 

  Hyper Load Nut

  KHI

  The nut and spring are integrated to completely prevent loosening and falling of nuts. This effect to prevent loosening is maintained even if it is repeatedly used.

  Days to Ship:	14 Day(s) or more

• 

  U Nut

  SUNCO

  [Material] 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

  Days to Ship:	8 Day(s) or more

• 

  U Nut (Fine P=1.5)

  SUNCO

  [Material] 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

  Days to Ship:	14 Day(s) or more

• • On Sale Till 31/03/2025

  

  Titanium Locking Nut - SWUT

  NABEYA BI-TECH

  Made of titanium. The specific gravity is about 60% that of stainless steel.
  · For applications where weight reduction is necessary, such as with automobiles, aircraft, space equipment, medical equipment, and robots.

  CAD ：

  2D / 3D

  	Special Price
  Days to Ship:	Same day or more

• • On Sale Till 31/03/2025

  

  Nylon Nut Type 1

  SUNCO

  [Materials] S45C, Equivalent to steel SWCH, SUS303, Titanium, Brass
  [Surface treatment] None, trivalent chromate, bright chromate plating, chromate plating, nickel plating

  • Volume Discount

  CAD ：

  2D / 3D

  	Special Price
  Days to Ship:	Same day or more

• • On Sale Till 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

  CAD ：

  2D / 3D

  	Special Price
  Days to Ship:	Same day or more

• 

  Iron and Stainless Steel Stable Nut

  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.

  Days to Ship:	14 Day(s) or more

• 

  Nylon Nut (Unified UNF)

  LOCKFASTENER

  The included nylon ring is fitted with a male screw to prevent loosening due to rotation applied from various directions, direct vibration, and shock.

  Days to Ship:	16 Day(s) or more

• 

  Nut, Whitworth

  FUJI SEIMITSU

  Definitive edition of Locking Nuts

  Days to Ship:	14 Day(s) or more

• 

  U-Nut Unified (UNC)

  FUJI SEIMITSU

  Definitive edition of Locking Nuts

  Days to Ship:	14 Day(s) or more

• 

  Hard Locking Bearing Nuts (Thin)

  SUNCO

  [Material] Steel/S45C/Stainless Steel
  [Surface Processing] Trivalent White / Molten Zinc Plating / Parkerizing (Phosphate Coating) / None
  [Nominal of Thread (M)] 16/20/22/24/27/36
  [Application/Function] Loosening prevention
  [Thread Ridge Type] Metric Coarse / Metric Fine
  [Loosening Prevention Details] Hard Lock Nut

  Days to Ship:	14 Day(s) or more

• 

  Stable Nut

  SOHWA SEISAKUSHO

  [Materials] SWCH equivalent, SUS304 equivalent.
  [Surface treatment] None, Trivalent chromate, bright chromate plating, zinc plating, chromate plating silver / copper / tin plating.

  CAD ：

  2D / 3D

  Days to Ship:	18 Day(s) or more

• 

  Spring Nut

  SAKAMURA

  A nut in which a spring washer (conical spring washer) is swaged and integrated. It can reduce embedding time.

  CAD ：

  2D / 3D

  Days to Ship:	16 Day(s) or more

• 

  Whitworth V-Lock Nut

  KISHU FASTENER

  The definitive lock nut with a Whitworth thread. Used mainly for light electrical appliances, housing, fencing, buildings, etc.

  Days to Ship:	14 Day(s) or more

• 

  Stable Nut, Thin Shape

  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.

  Days to Ship:	14 Day(s) or more

• 

  Nylon Nut (Type 1) (Iron / Brass)

  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.

  Days to Ship:	8 Day(s) or more

• • On Sale Till 31/03/2025

  

  E-Lock Nut

  SUNCO

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

  • Volume Discount

  	Special Price
  Days to Ship:	Same day or more

• 

  Fine, Small E-Lock Nut

  SUNCO

  [Materials]Steel "Surface Treatment" trivalent chromate "Thread type" metric fine

  Days to Ship:	18 Day(s) or more

• 

  U Nut Type 2

  FUJI SEIMITSU

  [Materials] SCM435 Threaded
  [Type]Metric coarse, Application/Function: Loosening prevention, Detailed loosening prevention, U nuts
  [Nominal Thread (M)] 6 8 10 12 14 16 18 20 22 24 27 30 33 36
  [Sales unit] Individual (Available for Purchase as 1pc) Box and Packaging.
  [Surface treatment](Detailed) trivalent white, uni-chromate plating, chrome plating - Hex nut standard: Type 2
  [Pitch (mm)] 1 1.25 1.5 1.75 2 2.5 3 3.5 4

  Days to Ship:	14 Day(s) or more

• 

  U Nut Type 2 (Fine Details)

  FUJI SEIMITSU

  Definitive edition of Locking Nuts

  Days to Ship:	Same day or more

• 

  Left-Handed U-Nut

  FUJI SEIMITSU

  The definitive locking nut that incorporates a "metal ring locking function". (Left-Handed Screw)
  [Features]
  ·In addition to its anti-loosening performance, it continues to evolve in terms of durability and vibration resistance, and works reliably in any operating environment.
  [Applications]
  ·It is used in a wide range of industries, from steel structures such as railways and bridges to automobiles, motorcycles, and industrial machinery.

  Days to Ship:	14 Day(s) 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

  Days to Ship:	14 Day(s) or more

• 

  Thin, Fine U-Nut

  FUJI SEIMITSU

  Definitive edition of Locking Nuts

  Days to Ship:	14 Day(s) or more

• 

  Whitworth Hard Locking Nut

  HARDLOCK INDUSTRY

  Nut that uses the principle of the wedge. Bolts and nuts are integrated, and any kinds of vibration and shock are kept away.

  Days to Ship:	14 Day(s) or more

• 

  Nylon Nut Unified (UNC)

  SUNCO

  [Materials] Equivalent to SWCH, Equivalent to SUS304
  [Surface treatment] None, bright chromate plating

  CAD ：

  2D / 3D

  Days to Ship:	18 Day(s) or more

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