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Lock Nuts（Thread Type：Metric, Fine）
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.
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Specification/Dimensions
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Nominal of Thread (M)
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Material
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Applications, Functions
- Standard
- Lock
- For Welding
- Fall-off Prevention
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Thread Type
- Metric, Coarse
- Metric, Coarse (Left)
- Metric, Fine
- Unified, Coarse (UNC)
- Unified, Fine (UNF)
- Whit, Coarse
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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
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Sales Unit
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Locking Details
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Nominal of Thread (inch)
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Surface Treatment (Details)
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Hex Nut Type
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U Nut Type 1 (Fine Details)【1-65 Pieces Per Package】
FUJI SEIMITSU
Definitive edition of Locking NutsFrom: ฿ 17.20 Days to Ship: 
5 Day(s)
5 Day(s)
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025U Nut Type 2 (Fine Details)【1-120 Pieces Per Package】
FUJI SEIMITSU
Definitive edition of Locking NutsFrom: ฿ 71.23 Special Price Days to Ship:
Same day
Same day
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025SUNCO
[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 NutFrom: ฿ 89.91 Special Price Days to Ship:
Same day
Same day
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You can add up to 6 items per a category to the compare list.
From: ฿ 50.71 Days to Ship:
5 Day(s)
5 Day(s)
-
You can add up to 6 items per a category to the compare list.
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 NutFrom: ฿ 48.00 Days to Ship:
6 Day(s)
6 Day(s)
-
You can add up to 6 items per a category to the compare list.
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)
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025HARDLOCK INDUSTRY
Nut that uses the principle of the wedge. Bolts and nuts are integrated, and any kinds of vibration and shock are kept away.From: ฿ 99.05 Special Price Days to Ship:
Same day
Same day
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You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025Nylon Nut Class 1 Fine【1-500 Pieces Per Package】
SUNCO
[Materials] Steel S45C SWCH equivalent SUS304 equivalent
[Surface treatment] None, trivalent chromate, bright chromate plating, chromate platingFrom: ฿ 7.90 Special Price Days to Ship:
Same day
Same day
-
You can add up to 6 items per a category to the compare list.
From: ฿ 18.90 Days to Ship:
5 Day(s)
5 Day(s)
-
You can add up to 6 items per a category to the compare list.
From: ฿ 34.70 Days to Ship:
5 Day(s)
5 Day(s)
-
You can add up to 6 items per a category to the compare list.
Nylon Nut (Type 1, Fine Details)【1-200 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: ฿ 16.30 Days to Ship:
5 Day(s)
5 Day(s)
-
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From: ฿ 45.58 Days to Ship:
5 Day(s)
5 Day(s)
-
You can add up to 6 items per a category to the compare list.
Iron U-Nut Thin Type (Smooth Cut)【1-500 Pieces Per Package】
SUNCO
Metal thin U-nut (fine) with 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.
· Screw accuracy: JIS6H (2nd grade).
[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)] 8/12/14/16/20/24
[Application/Function] Loosening prevention
[Thread Ridge Type] Metric Fine
[Loosening Prevention Details] U NutFrom: ฿ 24.28 Days to Ship:
5 Day(s)
5 Day(s)
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025Nylon Nut Class 1 Small and Fine【1-150 Pieces Per Package】
SUNCO
[Materials] Equivalent to SWCH/Equivalent to SUS304
[Surface treatment] None, trivalent chromate, bright chromate plating, chromate platingFrom: ฿ 10.60 Special Price Days to Ship:
Same day
Same day
-
You can add up to 6 items per a category to the compare list.
Nylon Nut (Class 1) (Small) (Fine) Pitch 1.25 mm
LOCKFASTENER
Frictional force generated between the nylon ring and the thread section of the bolt reduces shock and vibration, and prevents the screw from getting loose.From: ฿ 128.39 Days to Ship:
5 Day(s)
5 Day(s)
-
You can add up to 6 items per a category to the compare list.
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)
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You can add up to 6 items per a category to the compare list.
Tough Lock Nut Fine【200 Pieces Per Package】
SUNCO
Since three of the six surfaces of the nut are sloped conically, the tightening torque increases and nut loosening can be prevented.From: ฿ 1,159.56 Days to Ship:
5 Day(s)
5 Day(s)
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You can add up to 6 items per a category to the compare list.
Tough Lock Nut Small and Fine【200 Pieces Per Package】
SUNCO
Since three of the six surfaces of the nut are sloped conically, the tightening torque increases and nut loosening can be prevented.From: ฿ 1,599.09 Days to Ship:
5 Day(s)
5 Day(s)
-
You can add up to 6 items per a category to the compare list.
Tough Lock Flange Fine【120-250 Pieces Per Package】
SUNCO
Since three of the six surfaces of the nut are sloped conically, the tightening torque increases and nut loosening can be prevented.From: ฿ 1,351.12 Days to Ship:
5 Day(s)
5 Day(s)
-
You can add up to 6 items per a category to the compare list.
V-Lock Nut (Fine Thread)【200-300 Pieces Per Package】
KISHU FASTENER
The definitive double locking nut with fine threads. Mainly used for light electrical appliances, housing, fences, buildings, etc.From: ฿ 3,251.61 Days to Ship:
5 Day(s)
5 Day(s)
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You can add up to 6 items per a category to the compare list.
Small (Fine Thread) Triple Lock【250-400 Pieces Per Package】
KISHU FASTENER
Small (fine thread) version of prevailing lock nuts. Mainly used on automobiles, load-carrying trays, casters, etc.From: ฿ 2,228.16 Days to Ship:
5 Day(s)
5 Day(s)
-
You can add up to 6 items per a category to the compare list.
Fine Triple Lock【300 Pieces Per Package】
KISHU FASTENER
Fine-threaded prevailing torque nut. Mainly for automotive use, and for loading platforms and casters, etc.From: ฿ 1,923.28 Days to Ship:
5 Day(s)
5 Day(s)
-
You can add up to 6 items per a category to the compare list.
Fine 4T Tough Locking【200 Pieces Per Package】
SATO RASHI
Since three of the six surfaces of the nut are sloped conically, the tightening torque increases and helps prevent nut loosening..From: ฿ 1,158.54 Days to Ship:
5 Day(s)
5 Day(s)
-
You can add up to 6 items per a category to the compare list.
Compact, Fine 4T Tough Locking【200 Pieces Per Package】
SATO RASHI
Since three of the six surfaces of the nut are sloped conically, the tightening torque increases and helps prevent nut loosening..From: ฿ 1,599.09 Days to Ship:
5 Day(s)
5 Day(s)
-
You can add up to 6 items per a category to the compare list.
4T Tough Lock Flange (Fine Thread)【120-250 Pieces Per Package】
SATO RASHI
The combination of a flange and Tuflok patch keep the screw fastened securely to the bearing surface and offers more effective prevention of loosening.From: ฿ 1,351.63 Days to Ship:
5 Day(s)
5 Day(s)
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You can add up to 6 items per a category to the compare list.
Nylon Nut (Type 1, Fine Details)【1-500 Pieces Per Package】
LOCKFASTENER
When the internal nylon ring mates with a male screw, loosening as a result of rotation in any direction, linear vibration, or shock is avoided.From: ฿ 125.18 Days to Ship:
5 Day(s)
5 Day(s)
-
You can add up to 6 items per a category to the compare list.
Nylon Nut (Type 1 / Small / Fine)【1-150 Pieces Per Package】
TOMOE KOGYO
Nut comprises a metal main body together with a nylon ring (Nylon 66) that functions as a locking mechanism. (Fine)
[Features]
· Nylon 66 provides high rigidity, heat resistance and wear resistance, and also possesses excellent elasticity.
· Nylon 66 maintains performance even under conditions that would be extreme for metals, and will not corrode like metals.
· The internal diameter of the nylon ring is designed to standard to be the same dimension as the effective diameter of the nut's screw thread.
· An external thread is formed to adhere closely to the nylon ring by fitting together with the external thread of the bolt, generating fitting friction in that portion.
· This friction generates torque that prevents loosening of the nut caused by rotational vibration, linear vibration and impact, etc. applied from all directions.
[Applications]
· Aircraft, highway sound insulation walls, boats, etc.From: ฿ 27.62 Days to Ship:
5 Day(s)
5 Day(s)
-
You can add up to 6 items per a category to the compare list.
SUNCO
[Materials]Steel "Surface Treatment" trivalent chromate "Thread type" metric fineFrom: ฿ 22.76 Days to Ship:
5 Day(s)
5 Day(s)
-
You can add up to 6 items per a category to the compare list.
From: ฿ 33.48 Days to Ship:
5 Day(s)
5 Day(s)
-
You can add up to 6 items per a category to the compare list.
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 PlatingFrom: ฿ 58.88 Days to Ship:
5 Day(s)
5 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.  | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | |
| Brand | FUJI SEIMITSU | FUJI SEIMITSU | SUNCO | FUJI SEIMITSU | SUNCO | SUNCO | HARDLOCK INDUSTRY | SUNCO | FUJI SEIMITSU | FUJI SEIMITSU | TOMOE KOGYO | FUJI SEIMITSU | SUNCO | SUNCO | LOCKFASTENER | SUNCO | SUNCO | SUNCO | SUNCO | KISHU FASTENER | KISHU FASTENER | KISHU FASTENER | SATO RASHI | SATO RASHI | SATO RASHI | LOCKFASTENER | TOMOE KOGYO | SUNCO | FUJI SEIMITSU | FUJI SEIMITSU |
| Product Series | 4T Tough Lock Flange (Fine Thread)【120-250 Pieces Per Package】 | |||||||||||||||||||||||||||||
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| From | ฿ 17.20 | ฿ 71.23 Special Price On Sale Until 31/03/2025 | ฿ 89.91 Special Price On Sale Until 31/03/2025 | ฿ 50.71 | ฿ 48.00 | ฿ 49.94 | ฿ 99.05 Special Price On Sale Until 31/03/2025 | ฿ 7.90 Special Price On Sale Until 31/03/2025 | ฿ 18.90 | ฿ 34.70 | ฿ 16.30 | ฿ 45.58 | ฿ 24.28 | ฿ 10.60 Special Price On Sale Until 31/03/2025 | ฿ 128.39 | ฿ 3,737.30 | ฿ 1,159.56 | ฿ 1,599.09 | ฿ 1,351.12 | ฿ 3,251.61 | ฿ 2,228.16 | ฿ 1,923.28 | ฿ 1,158.54 | ฿ 1,599.09 | ฿ 1,351.63 | ฿ 125.18 | ฿ 27.62 | ฿ 22.76 | ฿ 33.48 | ฿ 58.88 |
| Days to Ship | 5 Day(s) | Same day | Same day | 5 Day(s) | 6 Day(s) | 6 Day(s) | Same day | Same day | 5 Day(s) | 5 Day(s) | 5 Day(s) | 5 Day(s) | 5 Day(s) | Same day | 5 Day(s) | 5 Day(s) | 5 Day(s) | 5 Day(s) | 5 Day(s) | 5 Day(s) | 5 Day(s) | 5 Day(s) | 5 Day(s) | 5 Day(s) | 5 Day(s) | 5 Day(s) | 5 Day(s) | 5 Day(s) | 5 Day(s) | 5 Day(s) |
| Nominal of Thread (M) | 8 ～ 27 | 10 ～ 56 | 10 ～ 30 | 8 ～ 18 | 12 ～ 24 | 12 ～ 30 | 8 ～ 36 | 8 ～ 20 | 10 ～ 20 | 12 | 8 ～ 24 | 12 ～ 27 | 8 ～ 24 | 10 ～ 12 | 10 | 10 | 10 | 12 | 10 ～ 12 | 10 ～ 12 | 10 ～ 12 | 10 | 10 | 12 | 10 ～ 12 | 8 ～ 12 | 10 ～ 12 | 10 | 8 | 12 |
| Material | Stainless Steel ～ Steel | Steel | Stainless Steel ～ Steel | Steel | Steel | Steel | Stainless Steel ～ Steel | Stainless Steel ～ Steel | Steel | Steel | Steel | Stainless Steel ～ Steel | Steel | Stainless Steel ～ Steel | Stainless Steel | Steel | Steel | Steel | Steel | Steel | Steel | Steel | Steel | Steel | Steel | Stainless Steel | Steel | Steel | Steel | Steel |
| Applications, Functions | Lock | Lock | Lock | Lock | Lock | Lock | Lock | Lock | Lock | For Welding | Lock | Lock | Lock | Lock | Lock | Lock | Lock | Lock | Lock | Lock | Lock | Lock | Lock | Lock | Lock | Lock | Lock | Lock | Lock | Lock |
| Thread Type | Metric, Fine | Metric, Fine | Metric, Fine | Metric, Fine | Metric, Fine | Metric, Fine | Metric, Fine | Metric, Fine | Metric, Fine | Metric, Fine | Metric, Fine | Metric, Fine | Metric, Fine | Metric, Fine | Metric, Fine | Metric, Fine | Metric, Fine | Metric, Fine | Metric, Fine | Metric, Fine | Metric, Fine | Metric, Fine | Metric, Fine | Metric, Fine | Metric, Fine | Metric, Fine | Metric, Fine | Metric, Fine | Metric, Fine | Metric, Fine |
| Surface Treatment | - | - | Trivalent Chromate / Parkerizing | - | Trivalent Chromate | Trivalent Chromate / Bright Chrome Plating | Not Provided / Trivalent Chromate | Trivalent Chromate / Bright Chrome Plating / Chromate Plating | - | - | Trivalent Chromate / Bright Chrome Plating / Chromate Plating | - | Trivalent Chromate / Bright Chrome Plating | Trivalent Chromate / Bright Chrome Plating / Chromate Plating | Not Provided | Trivalent Chromate | Trivalent Chromate | Trivalent Chromate | Trivalent Chromate | Not Provided / Trivalent Chromate / Bright Chrome Plating / Chromate Plating | Trivalent Chromate / Chromate Plating | Trivalent Chromate / Bright Chrome Plating / Chromate Plating | Trivalent Chromate | Trivalent Chromate | Trivalent Chromate | Not Provided | Trivalent Chromate / Bright Chrome Plating / Chromate Plating | Trivalent Chromate | - | - |
| 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. | Low Quantity (Available beginning with 1 pc.) | 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. | 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. | 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. | Box, Pkg. | Box, Pkg. | Box, Pkg. | Box, Pkg. | Box, Pkg. | Box, Pkg. | Box, Pkg. | 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.) |
| Locking Details | U Nut | U Nut | Hard Lock Nut | U Nut | U Nut | U Nut | Hard Lock Nut | Nylon Nut | U Nut | U Nut | Nylon Nut | U Nut | U Nut | Nylon Nut | Nylon Nut | Friction Nut | Other Special Shapes | Other Special Shapes | Other Special Shapes | Friction Nut | Other Special Shapes | Other Special Shapes | U Nut | U Nut | U Nut | Nylon Nut | Nylon Nut | Friction Nut | U Nut | U Nut |
| Nominal of Thread (inch) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Surface Treatment (Details) | Not Provided / Trivalent Chromate / Bright Chrome Plating / Chromate Plating | Not Provided / Trivalent Chromate / Bright Chrome Plating / Chromate Plating | Other Special Treatment / Trivalent Chromate | Not Provided / Trivalent Chromate / Bright Chrome Plating / Chromate Plating | Trivalent Chromate | Trivalent Chromate / Bright Chrome Plating | Not Provided / Trivalent Chromate | 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 | Not Provided / Trivalent Chromate / Bright Chrome Plating / Chromate Plating | Trivalent Chromate / Bright Chrome Plating | Trivalent Chromate / Bright Chrome Plating / Chromate Plating | Not Provided | Trivalent Chromate | Trivalent Chromate | Trivalent Chromate | Trivalent Chromate | Not Provided / Trivalent Chromate / Bright Chrome Plating / Chromate Plating | Trivalent Chromate / Chromate Plating | Trivalent Chromate / Bright Chrome Plating / Chromate Plating | Trivalent Chromate | Trivalent Chromate | Trivalent Chromate | Not Provided | Trivalent Chromate / Bright Chrome Plating / Chromate Plating | Trivalent Chromate | Not Provided / Trivalent Chromate / Bright Chrome Plating / Chromate Plating | Chromate Plating |
| Hex Nut Type | Class 1 ～ Class 2 | Class 2 | - | - | Class 2 | Class 2 | - | Class 1 | - | - | Class 1 | - | - | Class 1 | Class 1 | Class 2 | - | - | - | - | - | - | - | - | - | Class 1 | Class 1 | - | - | - |
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