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Black
Oxide
System
of
Measurement
Inch
Metric
Screw
Size
N
o
.
0
0
0
N
o
.
0
0
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
.
1
0
N
o
.
1
2
N
o
.
1
4
1
/
4
"
5
/
1
6
"
Material
Brass
Iron
Stainless
Steel
Steel
OD
0
.
0
7
8
"
0
.
1
0
9
"
1
/
8
"
0
.
1
5
6
"
0
.
1
7
0
"
0
.
1
7
1
"
0
.
1
7
2
"
0
.
1
7
3
"
0
.
1
8
8
"
0
.
2
0
9
"
0
.
2
1
3
"
0
.
2
1
6
"
0
.
2
1
8
"
0
.
2
4
0
"
0
.
2
4
5
"
Thickness
0
.
0
0
4
"
0
.
0
0
5
"
0
.
0
0
5
"
t
o
0
.
0
2
4
"
0
.
0
0
6
"
0
.
0
0
8
"
0
.
0
1
"
0
.
0
1
0
"
t
o
0
.
0
2
0
"
0
.
0
1
0
"
t
o
0
.
0
3
0
"
0
.
0
1
0
"
t
o
0
.
0
4
0
"
0
.
0
1
2
"
t
o
0
.
0
1
8
"
0
.
0
1
3
"
t
o
0
.
0
2
0
"
0
.
0
1
4
"
t
o
0
.
0
3
3
"
0
.
0
1
5
"
t
o
0
.
0
1
9
"
0
.
0
1
6
"
t
o
0
.
0
2
2
"
0
.
0
1
6
"
t
o
0
.
0
2
5
"
Washer
Type
Clipped
Conical
Countersunk
Curved
Flat
Sleeve
Slotted
Spherical
Split
Square
Tapered
Tooth
Wave
Wedge
ID
0
.
0
4
0
"
0
.
0
5
3
"
0
.
0
6
2
"
0
.
0
7
2
"
0
.
0
7
8
"
0
.
0
8
0
"
0
.
0
8
8
"
0
.
0
9
4
"
0
.
1
0
0
"
0
.
1
0
9
"
0
.
1
1
3
"
0
.
1
1
4
"
0
.
1
1
5
"
0
.
1
1
6
"
0
.
1
1
7
"
Length
20
mm
25
mm
65
mm
Washer
Designation
ASME
General
Purpose
Oversized
SAE
Undersized
USS
Overall
Height
0
.
0
2
5
"
0
.
0
4
0
"
0
.
0
4
1
"
0
.
0
5
0
"
0
.
0
5
3
"
0
.
0
5
5
"
0
.
0
5
6
"
0
.
0
6
1
"
0
.
0
7
0
"
0
.
3
1
3
"
0
.
3
1
5
"
0
.
3
2
8
"
0
.
3
3
5
"
0
.
4
1
0
"
0
.
4
6
0
"
Hardness
R
o
c
k
w
e
l
l
B
4
0
R
o
c
k
w
e
l
l
B
5
5
R
o
c
k
w
e
l
l
B
6
0
R
o
c
k
w
e
l
l
B
6
2
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
5
R
o
c
k
w
e
l
l
B
8
0
R
o
c
k
w
e
l
l
B
8
8
R
o
c
k
w
e
l
l
C
2
5
R
o
c
k
w
e
l
l
C
3
5
R
o
c
k
w
e
l
l
C
3
8
R
o
c
k
w
e
l
l
C
4
0
R
o
c
k
w
e
l
l
C
4
2
R
o
c
k
w
e
l
l
C
4
4
Specifications
Met
ASME
B18.21.1
DIN
Standard
ISO
7089
NASM15795
ASME
Designation
Narrow
Regular
Wide
Fastener
Head
Type
Flat
Headless
Hex
Rounded
Socket
Shape
Slot
USMCA
Qualifying
No
Performance
Corrosion
Resistant
Easy
Install
Reusable
Vibration
Resistant
DFARS
Compliance
Specialty
Metals
Compliant
(252.225
-
7008)
Specialty
Metals
Compliant
(252.225
-
7009)
Specialty
Metals
COTS
-
Exempt
Not
Specialty
Metals
Compliant
Width
0
.
6
8
8
"
1
"
1
1
/
4
"
1
1
/
2
"
2
"
2
1
/
4
"
3
"
4
"
2
5
m
m
3
4
m
m
4
6
m
m
4
8
m
m
5
0
m
m
6
1
m
m
6
3
m
m
Military
Specification
M
S
1
5
7
9
5
-
8
0
1
B
M
S
1
5
7
9
5
-
8
0
2
B
M
S
1
5
7
9
5
-
8
0
3
B
M
S
1
5
7
9
5
-
8
0
4
B
M
S
1
5
7
9
5
-
8
0
5
B
M
S
1
5
7
9
5
-
8
0
6
B
M
S
1
5
7
9
5
-
8
0
7
B
M
S
1
5
7
9
5
-
8
0
8
B
M
S
1
5
7
9
5
-
8
0
9
B
M
S
1
5
7
9
5
-
8
1
0
B
M
S
1
5
7
9
5
-
8
1
1
B
M
S
1
5
7
9
5
-
8
1
2
B
M
S
1
5
7
9
5
-
8
1
3
B
M
S
1
5
7
9
5
-
8
1
4
B
M
S
1
5
7
9
5
-
8
1
5
B
Nut
Type
Hex
Drive
Style
External
Hex
Hex
Phillips
Slotted
Forward
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