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Clear all
System
of
Measurement
Inch
Metric
Screw
Size
N
o
.
0
N
o
.
1
N
o
.
2
N
o
.
3
N
o
.
4
N
o
.
5
N
o
.
6
N
o
.
8
N
o
.
9
N
o
.
1
0
N
o
.
1
2
1
/
4
"
5
/
1
6
"
3
/
8
"
7
/
1
6
"
Material
Aluminum
Brass
Bronze
Ceramic
Copper
Hard
Fiber
K500
Nickel
Plastic
Stainless
Steel
Steel
Titanium
Finish
Black
Oxide
Cadmium
Plated
Chrome
Plated
Corrosion
-
Resistant
Coated
Dyed
Galvanized
Nickel
Plated
Passivated
Phosphate
Coated
Zinc
Flake
Coated
Zinc
Plated
Zinc
Yellow
-
Chromate
Plated
OD
3
/
3
2
"
1
/
8
"
0
.
1
5
6
"
5
/
3
2
"
0
.
1
7
2
"
0
.
1
7
3
"
3
/
1
6
"
0
.
1
8
8
"
0
.
1
8
9
"
0
.
1
9
5
"
0
.
2
0
0
"
0
.
2
0
2
"
0
.
2
0
9
"
0
.
2
1
3
"
0
.
2
1
6
"
Washer
Type
Coil
Countersunk
Flat
Split
Tooth
ID
0
.
0
6
8
"
0
.
0
7
8
"
0
.
0
8
4
"
0
.
0
8
6
"
0
.
0
8
8
"
0
.
0
8
9
"
0
.
0
9
4
"
0
.
0
9
5
"
0
.
1
0
2
"
0
.
1
0
7
"
0
.
1
0
9
"
0
.
1
1
3
"
0
.
1
1
4
"
0
.
1
1
5
"
0
.
1
1
6
"
Thickness
0
.
0
1
0
"
t
o
0
.
0
1
3
"
0
.
0
1
0
"
t
o
0
.
0
1
5
"
0
.
0
1
0
"
t
o
0
.
0
1
6
"
0
.
0
1
2
"
t
o
0
.
0
1
8
"
0
.
0
1
4
"
t
o
0
.
0
1
8
"
0
.
0
1
4
"
t
o
0
.
0
2
0
"
0
.
0
1
5
"
t
o
0
.
0
1
9
"
0
.
0
1
6
"
t
o
0
.
0
1
8
"
0
.
0
1
6
"
t
o
0
.
0
2
1
"
0
.
0
1
6
"
t
o
0
.
0
2
2
"
0
.
0
1
6
"
t
o
0
.
0
2
5
"
0
.
0
1
7
"
t
o
0
.
0
2
1
"
0
.
0
1
8
"
t
o
0
.
0
2
3
"
0
.
0
1
8
"
t
o
0
.
0
2
4
"
0
.
0
2
"
Fastener
Strength
Grade/Class
ASTM
Grade
A325
ASTM
Grade
A490
ISO
Class
8.8
ISO
Class
10.9
SAE
Grade
5
SAE
Grade
8
SAE
Grade
9
Washer
Designation
ASME
General
Purpose
Oversized
SAE
USS
Specifications
Met
See all
ASME
Standard
ASME
B1.1
ASME
B16.5
ASME
B18.2.6
ASME
B18.2.6M
ASME
B18.21.1
ASME
B18.21.2M
ASME
B18.22.1
ASME
B18.22M
ASME
B18.27.1
ASME
B18.27.2
ASME
B18.27.3
ASME
B18.27.4
ASME
B18.27.5
ASME
Designation
Narrow
Regular
Wide
Length
1/8"
3/16"
1/4"
3/8"
1/2"
4
9/16"
5
5/16"
6
5/16"
8
1/4"
Color
Beige
Black
Blue
Brown
Clear
Gray
Off
-
White
White
Performance
Chemical
Resistant
Clear
Conductive
Corrosion
Resistant
Electrically
Insulating
High
Strength
High
Temperature
Impact
Resistant
Lightweight
Moisture
Resistant
Reusable
Tension
Indicating
Wear
Resistant
Military
Specification
Army
-
Navy
Specification
Military
Specification
Hardness
B
r
i
n
e
l
l
3
2
R
o
c
k
w
e
l
l
B
4
0
R
o
c
k
w
e
l
l
B
6
0
R
o
c
k
w
e
l
l
B
6
8
R
o
c
k
w
e
l
l
B
7
0
R
o
c
k
w
e
l
l
B
7
2
R
o
c
k
w
e
l
l
B
8
0
R
o
c
k
w
e
l
l
B
8
7
R
o
c
k
w
e
l
l
B
8
8
R
o
c
k
w
e
l
l
B
9
0
R
o
c
k
w
e
l
l
C
2
2
R
o
c
k
w
e
l
l
C
3
4
R
o
c
k
w
e
l
l
C
3
5
R
o
c
k
w
e
l
l
C
3
7
R
o
c
k
w
e
l
l
C
3
8
Shape
Round
Tooth
Location
External
Internal
Internal
and
External
USMCA
Qualifying
Yes
No
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
DFARS
Compliance
Specialty
Metals
Compliant
(252.225
-
7008)
Specialty
Metals
Compliant
(252.225
-
7009)
Specialty
Metals
COTS
-
Exempt
Not
Specialty
Metals
Compliant
Fastener
Strength
Rating
Medium
High
Extreme
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2,500 Products
Fastening and Joining
Washers
Nearly every size and shape imaginable, from flat washers to clipped to curved
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Resist vibration to prevent fasteners from loosening
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Hold components on a shaft
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Unthreaded to create space between two surfaces or objects, often to align them
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Install next to valves and pumps to catch debris in your line
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