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of
Measurement
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M20
Material
Aluminum
Brass
Ceramic
Copper
Fiberglass
Hard
Fiber
Leather
Plastic
Rubber
Stainless
Steel
Steel
OD
1
.
1
8
1
"
1
.
2
1
"
1
.
5
4
0
"
2
3
.
9
0
0
m
m
2
5
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9
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0
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m
2
9
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6
7
m
m
3
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6
m
m
3
2
m
m
3
3
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m
3
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3
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m
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3
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6
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m
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3
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8
m
m
3
4
m
m
3
5
m
m
3
6
m
m
ID
0
.
8
2
7
"
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8
4
"
1
9
.
6
m
m
2
0
m
m
2
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2
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m
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0
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5
m
m
2
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9
5
0
m
m
2
1
m
m
2
1
.
1
m
m
2
1
.
2
m
m
2
1
.
9
0
0
m
m
2
2
m
m
2
2
.
2
m
m
2
3
.
2
m
m
2
6
m
m
Washer
Type
Clipped
Flat
Metal
Bonded
Spherical
Split
Lock
Spring
Lock
Square
Tab
Lock
Tapered
Tension
Indicating
Tooth
Lock
Wave
Wedge
Lock
Thickness
0
.
0
0
5
"
0
.
0
1
"
0
.
0
1
5
"
0
.
0
2
"
0
.
0
2
5
"
0
.
0
3
1
"
0
.
0
5
5
"
0
.
0
5
9
"
0
.
0
6
"
0
.
0
6
2
"
0
.
0
9
4
"
t
o
0
.
1
5
6
"
0
.
1
1
0
"
t
o
0
.
1
3
0
"
0
.
1
2
0
"
t
o
0
.
1
4
0
"
0
.
2
2
0
"
t
o
0
.
2
3
0
"
1
m
m
Specifications
Met
ASME
Standard
ASTM
F959
DIN
Standard
ISO
Standard
Finish
Black
Oxide
Corrosion
-
Resistant
Coated
Dyed
Galvanized
Hot
-
Dipped
Galvanized
Passivated
Phosphate
Coated
Zinc
Flake
Coated
Zinc
Plated
Zinc
Yellow
-
Chromate
Plated
Hardness
D
u
r
o
m
e
t
e
r
5
5
A
D
u
r
o
m
e
t
e
r
6
0
A
D
u
r
o
m
e
t
e
r
6
4
A
D
u
r
o
m
e
t
e
r
7
5
A
D
u
r
o
m
e
t
e
r
5
1
D
R
o
c
k
w
e
l
l
B
3
5
R
o
c
k
w
e
l
l
B
4
0
R
o
c
k
w
e
l
l
B
5
0
R
o
c
k
w
e
l
l
B
5
2
R
o
c
k
w
e
l
l
B
5
6
R
o
c
k
w
e
l
l
B
6
8
R
o
c
k
w
e
l
l
B
7
5
R
o
c
k
w
e
l
l
B
7
6
R
o
c
k
w
e
l
l
B
8
3
R
o
c
k
w
e
l
l
B
8
4
RoHS
Compliance
RoHS
3
(2015/863/EU)
Compliant
RoHS
3
(2015/863/EU)
Compliant
with
Exemptions
REACH
Compliance
REACH
(EC
1907/2006)
(06/27/2024,
241
SVHC)
Compliant
REACH
(EC
1907/2006)
(01/23/2024,
240
SVHC)
Compliant
REACH
(EC
1907/2006)
(06/14/2023,
235
SVHC)
Compliant
REACH
(EC
1907/2006)
(01/17/2023,
233
SVHC)
Compliant
REACH
(EC
1907/2006)
(06/10/2022,
224
SVHC)
Compliant
REACH
(EC
1907/2006)
(01/17/2022,
223
SVHC)
Compliant
Not
Compliant
DFARS
Compliance
Specialty
Metals
Compliant
(252.225
-
7009)
Specialty
Metals
COTS
-
Exempt
Fastener
Strength
Grade/Class
ISO
Class
8.8
ISO
Class
10.9
ISO
Class
12.9
SAE
Grade
5
SAE
Grade
8
Split
Lock
Washer
Type
Curved
Standard
Color
Beige
Black
Blue
Gray
Light
Green
Off
-
White
Red
White
Maximum
Temperature
Less
than
250°
F
250°
F
to
299°
F
300°
F
to
499°
F
500°
F
to
999°
F
1,000°
F
or
greater
Minimum
Temperature
-
99°
F
to
-
50°
F
-
49°
F
to
0°
F
Not
Rated
Overall
Height
0.098"
3.5
mm
4
mm
4.30
mm
4.5
mm
5.1
mm
6.4
mm
7.4
mm
ASME
Designation
Narrow
Regular
Wide
Tab
Width
4.000
mm
6
mm
6.5
mm
Serration
Location
Top
and
Bottom
Gender
Female
Male
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163 Products
Fastening and Joining
Washers
Reduce
stress
where
fasteners
attach
by
distributing
the
load
71 products
Lock
Washers
Resist
vibration
to
prevent
fasteners
from
loosening
42 products
Sealing
Washers
Prevent
fluids
from
leaking
around
fasteners
13 products
Leveling
Washers
Curved
or
tapered
to
compensate
for
uneven
mounting
surfaces
6 products
Cushioning
Washers
Cushion
joints
to
damp
vibration
and
protect
them
from
wear
1 product
Shims
Level,
align,
and
adjust
spacing
on
fasteners,
shafts,
and
machine
components
13 products
Power Transmission
Bearing
Lock
Washers
Lock
bearing
nuts
in
place
to
prevent
loosening
due
to
vibration
2 products
The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)