FUJI SEIMITSU Bearing Lock Nuts / Shaft Nuts / Locknuts

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Fine U Nut SC Series (Material: S45C Conditioning Quality Equivalent)

FUJI SEIMITSU

Bearing lock nut developed by Fuji Seimitsu Co., Ltd., a pioneer of lock nuts with over 40 years of solid performance and trust.

Volume Discount

Starting from^∗ ：	6.18 €
	Special price
Min. Shipping Days ：	Same day

*Unit price with basic configuration

Promotional pricing

Fine U-Nut SS Series (Material: SS400 Equivalent)

FUJI SEIMITSU

A locking nut for bearings manufactured by Fuji Seimitsu, a company that has been producing quality U-nuts for around 50 years.
[Features]
· You no longer need to worry about how to mount toothed lock washers or about machining keyways into shafts, things that were previously essential.
· An innovative locking nut for bearings with easy torque management. Allows for positioning to be performed anywhere it is required.
· Can be reused.
· No special skills required for assembly.
· Can be finely adjusted at any position and the torque is easy to manage.
· Dedicated tools available up to M100.
· No need to add keyways to shafts.
· No toothed lock washers required. Can also help prevent you from forgetting to perform bending.
· Improves the shaft and bearing rotational balance.
· Allows the use of thinner hollow shafts than before.
· Special machining processes, parts and techniques that were required previously are no longer necessary, helping you reduce costs.
[Applications]
· Improves rational balance of bearings that generate "Power" in all sorts of industrial machines.
· Also, rotational loss of devices and power consumption has been reduced.

Volume Discount

Starting from^∗ ：	2.72 €
	Special price
Min. Shipping Days ：	Same day

*Unit price with basic configuration

Fine U Nut SUS Series (Material: SUS304)

FUJI SEIMITSU

Bearing lock nut developed by Fuji Seimitsu Co., Ltd., a pioneer of lock nuts with over 40 years of solid performance and trust.

Volume Discount

Starting from^∗ ：	19.06 €
Min. Shipping Days ：	5 Days

*Unit price with basic configuration

Socket for Fine U Nut

FUJI SEIMITSU

Fine U-nut tightening tool featuring easy torque management while supporting flexible and appropriate positioning.

Volume Discount

Starting from^∗ ：	46.76 €
Min. Shipping Days ：	6 Days

*Unit price with basic configuration

Promotional pricing

TWIN FU-NUT

FUJI SEIMITSU

Simultaneous machining of the thread and the bearing surface, as well as a combination of high surface deflection accuracy and lock functions, ensures that accurate bearing rotation is maintained constantly.

Volume Discount

Starting from^∗ ：	25.40 €
	Special price
Min. Shipping Days ：	Same day

*Unit price with basic configuration

Promotional pricing

Extension Bar for Fine U Nut

FUJI SEIMITSU

Fine U-nut tightening tool featuring easy torque management while supporting flexible and appropriate positioning.

Volume Discount

Starting from^∗ ：	18.29 €
	Special price
Min. Shipping Days ：	Same day

*Unit price with basic configuration

Promotional pricing

Ratchet Handle for Fine U Nut

FUJI SEIMITSU

Fine U-nut tightening tool featuring easy torque management while supporting flexible and appropriate positioning.

Volume Discount

Starting from^∗ ：	96.78 €
	Special price
Min. Shipping Days ：	Same day

*Unit price with basic configuration


Brand
Product Series
Starting from^∗
Min. Shipping Days ：
Type
Thread Nominal M
Shape
Material
Surface Treatment
Screw Type

	Promotional pricing	Promotional pricing			Promotional pricing	Promotional pricing	Promotional pricing
Brand	FUJI SEIMITSU	FUJI SEIMITSU	FUJI SEIMITSU	FUJI SEIMITSU	FUJI SEIMITSU	FUJI SEIMITSU	FUJI SEIMITSU
Product Series	Fine U Nut SC Series (Material: S45C Conditioning Quality Equivalent)	Fine U-Nut SS Series (Material: SS400 Equivalent)	Fine U Nut SUS Series (Material: SUS304)	Socket for Fine U Nut	TWIN FU-NUT	Extension Bar for Fine U Nut	Ratchet Handle for Fine U Nut
Starting from^∗	6.18 € Special price *Unit price with basic configuration Promotional pricing Volume Discount	2.72 € Special price *Unit price with basic configuration Promotional pricing Volume Discount	19.06 € *Unit price with basic configuration Volume Discount	46.76 € *Unit price with basic configuration Volume Discount	25.40 € Special price *Unit price with basic configuration Promotional pricing Volume Discount	18.29 € Special price *Unit price with basic configuration Promotional pricing Volume Discount	96.78 € Special price *Unit price with basic configuration Promotional pricing Volume Discount
Min. Shipping Days ：	Same day	Same day	5 Days	6 Days	Same day	Same day	Same day
Type	Lock Nuts	Lock Nuts	Lock Nuts	Tool	Lock Nuts	Tool	Tool
Thread Nominal M	M10 ～ M95	M10 ～ M90	M10 ～ M95	M17 ～ M50	M15 ～ M50	1/2 ～ 3/8	1/2 ～ 3/8
Shape	Round Shape	Round Shape	Round Shape	Round Shape	Round Shape	Round Shape	Round Shape
Material	Steel	Steel	Stainless Steel	-	Steel	-	-
Surface Treatment	No Surface Treatment	No Surface Treatment	No Surface Treatment	Surface Treatment Provided	Surface Treatment Provided	-	-
Screw Type	Metric (Fine) Thread	Metric (Fine) Thread	Metric (Fine) Thread	-	Metric (Fine) Thread	-	-

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Narrow search by specifying spec./dim.

Thread Nominal M
0.391"x32F

0.469"x32F

0.586"x32F

0.664"x32F

0.781"x32F

0.969"x32F

1/2

1.173"x18F

1.376"x18F

1.563"x18F

1.767"x18F

1.967"x18F

1.967x18F"

2.157"x18F

2.157x18F"

2.360"x18F

2.360x18F"

2.548"x18F

2.548x18F"

2.751"x18F

2.751x18F"

2.933"x12F

2.933x12F"

M3x0.35

M3x0.5

3/8

3.137"x12F

3.137x12F"

3.340"x12F

3.340x12F"

3.527"x12F

3.527x12F"

3.730"x12F

3.730x12F"

3.918"x12F

3.918x12F"

M4x0.5

M4x0.7

4.122"x12F

4.122x12F"

4.325"x12F

4.325x12F"

4.716"x12F

4.716x12F"

M5x0.5

M5x0.8

5.106"x12F

5.106x12F"

5.497"x12F

5.497x12F"

5.888"x12F

5.888x12F"

6

M6

M6X0,5

M6x0.75

M6x1

6.284"x8F

6.284x8F"

6.659"x8F

6.659x8F"

7.066"x8F

7.066x8F"

7.472"x8F

7.472x8F"

7.847"x8F

7.847x8F"

M8

M8X0,75

M8x0.75

M8x1.0

M 8 x 1

M8x1.25

8.628"x8F

8.628x8F"

9.442"x6F

9.442x6F"

M10

M10x0,75

M 10 x 0,75

10 x 0.75

M10 x 0.75

M10X0.75

M10x0.75

M 10x0.75

M10X1

M10x1

M 10 x 1

M10x1.5

10.192"x6F

10.192x6F"

11.004"x6F

11.004x6F"

11.785"x6F

11.785x6F"

M12

12 x 1

M12X1.0

M12X1

M12x1

M 12 x 1

M 12x1

M 12 x 1,5

M12x1.75

12.562"x6F

12.562x6F"

13.339x5F"

M 14 x 1,5

14.170x5F"

14.957x5F"

M15

15 x 1

M15 x 1

M15X1.0

M15X1

M15x1

M15×1.00

M 15 x 1

M 15x1

15.745x5F"

M16

M 16 x 1,5

M16x2

16.532x5F"

M17

17 x 1

M17X1.0

M17X1

M17x1

M 17 x 1

M 17x1

17.319x5F"

18

M 18 x 1,5

18.107x5F"

18.894x5F"

19.682x5F"

M20

20 x 1

M20X1.0

M20X1

M20x1

M20×1.00

M 20 x 1

M 20x1

M 20 x 1,5

M20x2.5

20.867x4F"

M 22 x 1,5

22.048x4F"

23.623x4F"

M24

M 24 x 1,5

M24x3

24.804x4F"

M25

M25X1,5

M25x1,5

M 25 x 1,5

25 x 1.5

M25X1.5

M25x1.5

M25×1.50

M 25x1.5

M 26 x 1,5

26.379x4F"

27.961x3F"

M 28 x 1,5

29.536x3F"

M30

M30X1,5

M30x1,5

M 30 x 1,5

30 x 1.5

M30X1.5

M30x1.5

M 30x1.5

M30x3.5

31.504x3F"

M 32 x 1,5

33.473x3F"

M35

M35X1,5

M35x1,5

M 35 x 1,5

35 x 1.5

M35 x 1.5

M35X1.5

M35x1.5

M 35x1.5

35.441x3F"

37.410x3F"

M 38 x 1,5

M40

M40X1,5

M40x1,5

M 40 x 1,5

40 x 1.5

M40X1.5

M40x1.5

M 40x1.5

M 42 x 1,5

M45

M45X1,5

M45x1,5

M 45 x 1,5

45 x 1.5

M45X1.5

M45x1.5

M 45x1.5

M 48 x 1,5

M50

M50X1,5

M50x1,5

M 50 x 1,5

50 x 1.5

M50X1.5

M50x1.5

M 50x1.5

M 52 x 1,5

M55

M 55 x 1,5

M55x1.5

M 55x1.5

55 x 2

M55X2

M55X2.0

M55x2

M55x2.0

M 55 x 2

M 55x2

M 58 x 1,5

M60

M 60 x 1,5

M60x1.5

M 60x1.5

60 x 2

M60X2

M60X2.0

M60x2

M60x2.0

M 60 x 2

M 60x2

M65

M65x1.5

M 65x1.5

65 x 2

M65X2

M65X2.0

M65x2

M 65x2

M70

M70x1.5

M 70x1.5

70 x 2

M70X2

M70X2.0

M70x2

M 70x2

M75

M75x1,5

M 75x1.5

75 x 2

M75X2

M75X2.0

M75x2

M 75x2

M80

80 x 2

M80X2

M80X2.0

M80x2

M 80x2

M85

85 x 2

M85X2

M85x2

M 85x2

M90

90 x 2

M90X2

M90X2.0

M90x2

M 90x2

94.742 mm

M95

95 x 2

M95X2.0

M95x2

M 95x2

99.517 mm

M100

100 x 2

M100X2

M100X2.0

M100x2

M 100x2

M105

M105X2

M105X2.0

M105x2

M110

110 x 2

M110X2

M110X2.0

M110x2

M 110x2

M115

115 x 2

M115X2

M115X2.0

M115x2

119.786 mm

M120

120 x 2

M120X2

M120X2.0

M120x2

M 120x2

M125

125 x 2

M125X2

M125X2.0

M125x2

130 x 2

M130X2

M130X2.0

M130x2

M 130x2

M130x3

M 130x3

M135

135 x 2

M135X2.0

M135x2

139.642 mm

M140

140 x 2

M140X2

M140X2.0

M140x2

M 140x2

M140x3

M 140x3

M145

145 x 2

M145X2.0

M145x2

M150

150 x 2

M150X2

M150X2.0

M150x2

M 150x2

M150x3

M 150x3

155 x 3

M155x3

M160

160 x 3

M160x3

M 160x3

M165x3

169.139 mm

170 x 3

M170x3

M 170x3

179.476 mm

M180x3

M 180x3

189.789 mm

M190

M190x3

M 190x3

199.314 mm

M200

M200x3

M 200x3

TM205x4

Tr205x4

Tr 205x4

Tr210x4

Tr 210x4

Tr215x4

Tr 215x4

TM220x4

Tr220x4

Tr 220x4

Tr225x4

Tr 225x4

Tr230x4

Tr 230x4

TM235x4

Tr235x4

Tr 235x4

239.827 mm

TM240x4

Tr240x4

Tr 240x4

Tr250x4

Tr 250x4

TM260x4

Tr260x4

Tr 260x4

Tr270x4

Tr 270x4

Tr275x4

TM280x4

Tr280x4

Tr 280x4

Tr290x4

Tr 290x4

Tr295x4

TM300x4

Tr300x4

Tr 300x4

Tr310x5

Tr 310x5

Tr315x5

319.075 mm

TM320x5

Tr320x5

Tr 320x5

TM330x5

Tr330x5

Tr 330x5

Tr335x5

TM340x5

Tr340x5

Tr 340x5

Tr345x5

Tr 345x5

Tr350x5

Tr 350x5

Tr355x5

TM360x5

Tr360x5

Tr 360x5

TM365x5

Tr365x5

Tr 365x5

Tr370x5

Tr 370x5

Tr375x5

TM380x5

Tr380x5

Tr 380x5

Tr385x5

Tr 385x5

Tr395x5

Tr400x5

Tr 400x5

Tr410x5

Tr 410x5

Tr415x5

TM420x5

Tr420x5

Tr 420x5

Tr430x5

Tr 430x5

Tr435x5

Tr440x5

Tr 440x5

Tr450x5

Tr 450x5

Tr460x5

Tr 460x5

Tr470x5

Tr 470x5

Tr480x5

Tr 480x5

Tr490x5

Tr 490x5

Tr500x5

Tr510x6

Tr520x6

Tr530x6

Tr540x6

Tr550x6

Tr560x6

560.019 mm

Tr570x6

Tr580x6

Tr590x6

Tr600x6

600.024 mm

Tr610x6

Tr625x6

Tr630x6

630.022 mm

Tr650x6

Tr655x6

Tr670x6

670.027 mm

Tr680x6

Tr690x6

Tr695x6

Tr710x7

710.209 mm

Tr720x7

Tr740x7

Tr750x7

750.214 mm

Tr760x7

Tr775x7

Tr780x7

Tr800x7

800.202 mm

Tr830x7

Tr850x7

850.214 mm

Tr880x7

Tr900x7

900.201 mm

Tr930x8

Tr950x8

950.214 mm

Tr980x8

Tr1000x8

Tr1035x8

Tr1060x8

Tr1095x8

Tr1120x8

Tr1155x8

Tr1180x8

Tr1215x8
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- None
- Phosphate Coating
- Black Oxide
- Zinc Plating
- Surface Treatment Provided
- No Surface Treatment
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- Metric (Coarse) Thread
- Metric (Fine) Thread
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