Serrated safety washers are Disc Springs with a Trapezoidal Cross Section on both sides for gripping. Reason serrated safety washers are ready to fit washers for sustaining a preload and avoiding loosening. As the bolts are tightened the serrations bite into the mating faces and prevents the screw from loosening due to vibration also, the disc shape holds the necessary pre-load. (From Reason Technology Company)
Light Duty
|
Code
|
I.D.
|
O.D.
|
Thickness
|
Overall
Height
|
Screw Size
|
Package
Qty.
|
|
mm
|
inch
|
|
S1.6
|
1.7
|
3.2
|
0.35
|
0.6
|
1.6
|
|
1000
|
|
S2
|
2.2
|
4
|
0.35
|
0.6
|
2
|
|
1000
|
|
S2.5
|
2.7
|
4.8
|
0.45
|
0.9
|
2.5
|
|
1000
|
|
S3
|
3.2
|
5.5
|
0.45
|
0.9
|
3
|
1/8"
|
1000
|
|
S3.5
|
3.7
|
6
|
0.45
|
0.9
|
3.5
|
|
1000
|
|
S4
|
4.3
|
7
|
0.5
|
1
|
4
|
5/32"
|
1000
|
|
S5
|
5.3
|
9
|
0.6
|
1.1
|
5
|
3/16"
|
1000
|
|
S6
|
6.4
|
10
|
0.7
|
1.2
|
6
|
|
1000
|
|
S6.35
|
6.7
|
9.5
|
0.7
|
1.2
|
|
1/4"
|
1000
|
|
S7
|
7.4
|
12
|
0.7
|
1.3
|
7
|
|
1000
|
|
S8
|
8.4
|
13
|
0.8
|
1.4
|
8
|
5/16"
|
1000
|
|
S10
|
10.5
|
16
|
1
|
1.6
|
10
|
3/8"
|
1000
|
|
S11.1
|
11.6
|
15.9
|
1
|
1.6
|
|
7/16"
|
500
|
|
S12
|
13
|
18
|
1.1
|
1.7
|
12
|
|
500
|
|
S12.7
|
13.7
|
19
|
1.1
|
1.8
|
|
1/2"
|
500
|
|
S14
|
15
|
22
|
1.2
|
2
|
14
|
9/16"
|
500
|
|
S16
|
17
|
24
|
1.3
|
2.1
|
16
|
5/8"
|
500
|
|
S18
|
19
|
27
|
1.5
|
2.3
|
18
|
|
250
|
|
S19
|
20
|
30
|
1.5
|
2.5
|
|
3/4"
|
250
|
|
S20
|
21
|
30
|
1.5
|
2.5
|
20
|
|
250
|
|
S22
|
23
|
33
|
1.5
|
2.7
|
22
|
7/8"
|
|
|
S24
|
25.6
|
36
|
1.8
|
2.9
|
24
|
|
|
|
S25.4
|
27
|
38
|
2
|
3.1
|
|
1"
|
|
|
S27
|
28.6
|
39
|
2
|
3.1
|
27
|
|
|
|
S30
|
31.6
|
45
|
2
|
3.6
|
30
|
11/8"
|
|
|
S36
|
38
|
54
|
2.5
|
4.2
|
36
|
13/8"
|
|
Medium Duty
|
Code
|
I.D.
|
O.D.
|
Thickness
|
Overall
Height
|
Screw Size
|
Package
Qty.
|
|
mm
|
inch
|
|
VS5
|
5.3
|
9
|
1
|
1.3
|
5
|
3/16"
|
1000
|
|
VS6
|
6.4
|
10
|
1
|
1.4
|
6
|
|
1000
|
|
VS8
|
8.4
|
13
|
1.2
|
1.7
|
8
|
5/16"
|
1000
|
|
VS10
|
10.5
|
16
|
1.5
|
2
|
10
|
3/8"
|
1000
|
|
VS12
|
13
|
18
|
1.5
|
2.1
|
12
|
|
|
|
VS14
|
15
|
22
|
1.5
|
2.2
|
14
|
9/16"
|
|
|
VS16
|
17
|
24
|
2
|
2.6
|
16
|
5/8"
|
|
|
VS18
|
19
|
27
|
2
|
2.7
|
18
|
|
|
|
VS20
|
21
|
30
|
2
|
2.8
|
20
|
|
|
|
VS22
|
23
|
33
|
2
|
2.9
|
22
|
7/8"
|
|
|
VS24
|
25.6
|
36
|
2.5
|
3.3
|
24
|
|
|
|
VS27
|
28.6
|
39
|
2.5
|
3.4
|
27
|
|
|
|
VS30
|
31.6
|
45
|
2.5
|
3.6
|
30
|
11/8"
|
|
|
VS36
|
38
|
54
|
3.0
|
4.2
|
36
|
13/8"
|
|
*Standard Materials:50CrVA,Finish:Corrosion resistant, All products listed manufactured to Reason Technology Co. standard materials and finishes, please consult with Reason Technology Co. on any special materials or finishes | 
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