Flat Spring Washer, JIS B, 1251, Type 1, for Screw, for Heavy Load

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This part has spring counter-force comparable to tightening axial force of bolts and prevents thread loosening caused by vibration and shock. It is possible to obtain a stable tightening axial force without causing fatigue to the tightening material due to the low pressure applied to the bearing surface.

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Product specification
Part Numbers

Data to be displayed: 30; 45; 60

Part Number
WDSJIS1-ST3W-M12
WDSJIS1-ST-M6
WDSJIS1-ST-M8
WDSJIS1-ST-M10
WDSJIS1-ST-M12
WDSJIS1-ST-M14
WDSJIS1-ST-M16
WDSJIS1-ST-M18
WDSJIS1-ST-M20
WDSJIS1-ST-M22
WDSJIS1-STC-M16
WDSJIS1-STN-M6
WDSJIS1-STN-M8
WDSJIS1-STN-M10
WDSJIS1-STN-M12
WDSJIS1-STN-M14
WDSJIS1-STN-M16

Standard Unit Price	Minimum order quantity	Volume Discount	Standard Shipping Days ?	RoHS	Surface Treatment	I.D. d (mm)	Screw Nominal (M)	Thickness T (mm)	Surface Treatment (Detailed)	O.D. D (mm)
0.93 €	1	Available	7 Days	10	[Trivalent Chromate] Trivalent Chromate	13	12	2.5	[Trivalent Chromate] Trivalent White	24
1.68 €	1	Available	7 Days	10	[Not Provided] Fabric	6.4	6	1.2	[Not Provided] Fabric	12.5
1.75 €	1	Available	6 Days	10	[Not Provided] Fabric	8.4	8	1.8	[Not Provided] Fabric	17
1.84 €	1	Available	6 Days	10	[Not Provided] Fabric	10.5	10	2.2	[Not Provided] Fabric	21
2.02 €	1	Available	7 Days	10	[Not Provided] Fabric	13	12	2.5	[Not Provided] Fabric	24
2.26 €	1	Available	6 Days	10	[Not Provided] Fabric	15	14	3	[Not Provided] Fabric	28
1.26 €	1	Available	7 Days	10	[Not Provided] Fabric	17	16	3.5	[Not Provided] Fabric	30
1.99 €	1	Available	7 Days	10	[Not Provided] Fabric	19	18	4	[Not Provided] Fabric	34
1.69 € 0.90 €	1	Available	Same day Stock	10	[Not Provided] Fabric	21	20	4.5	[Not Provided] Fabric	37
3.00 €	1	Available	7 Days	10	[Not Provided] Fabric	23	22	5	[Not Provided] Fabric	39
1.82 €	1	Available	6 Days	-	[Chromate Plating] Chromate Plating	17	16	3.5	[Chromate Plating] Chromate Plating	30
1.74 €	1	Available	7 Days	10	Nickel Plating	6.4	6	1.2	[Nickel Plating] Nickel Plating	12.5
0.30 € 0.15 €	1	Available	Same day Stock	10	Nickel Plating	8.4	8	1.8	[Nickel Plating] Nickel Plating	17
2.06 €	1	Available	7 Days	10	Nickel Plating	10.5	10	2.2	[Nickel Plating] Nickel Plating	21
2.30 €	1	Available	7 Days	10	Nickel Plating	13	12	2.5	[Nickel Plating] Nickel Plating	24
1.62 €	1	Available	7 Days	10	Nickel Plating	15	14	3	[Nickel Plating] Nickel Plating	28
2.13 €	1	Available	7 Days	10	Nickel Plating	17	16	3.5	[Nickel Plating] Nickel Plating	30

Basic information

Type (Application)	Spring Washer	Type	Spring Washer	Material	Steel
Sales Unit	Low Quantity (can be purchased from one)	Material: Steel	EN 1.1213 Equiv. to EN 1.0601 Equiv.	Type, Spring Washers	Disc Spring Washers

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Basic Attributes

Surface Treatment
- Not Provided
  - Fabric
- Trivalent Chromate
  - Trivalent Chromate
- Chromate Plating
  - Chromate Plating
- Nickel Plating
Clear
I.D. d(mm)
6.4

8.4

10.5

13

15

17

19

21

23
Clear
Screw Nominal (M)
6

8

10

12

14

16

18

20

22
Clear
Thickness T(mm)
1.2

1.8

2.2

2.5

3

3.5

4

4.5

5
Clear
Surface Treatment (Detailed)
- Not Provided
  - Fabric
- Trivalent Chromate
  - Trivalent White
- Chromate Plating
  - Chromate Plating
- Nickel Plating
  - Nickel Plating
Clear
O.D. D(mm)
12.5

17

21

24

28

30

34

37

39
Clear
Type
- WDSJIS1-ST-M
- WDSJIS1-ST3W-M
- WDSJIS1-STC-M
- WDSJIS1-STN-M
Clear