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System
of
Measurement
Inch
Metric
Thread
Size
0
0
0
0
-
1
6
0
0
0
0
-
1
2
0
0
0
-
9
0
0
0
-
9
6
0
-
8
0
1
-
6
4
1
-
7
2
2
-
5
6
2
-
6
4
3
-
4
8
3
-
5
6
4
-
4
0
4
-
4
8
5
-
4
0
5
-
4
4
Length
1
/
1
6
"
3
/
3
2
"
1
/
8
"
5
/
3
2
"
3
/
1
6
"
7
/
3
2
"
1
/
4
"
9
/
3
2
"
5
/
1
6
"
1
1
/
3
2
"
3
/
8
"
7
/
1
6
"
1
/
2
"
1
7
/
3
2
"
9
/
1
6
"
Fastener
Head
Type
12
-
Point
Flat
Headless
Hex
Oval
Pentagon
Rounded
Socket
Square
Material
400
Nickel
Aluminum
Aluminum
Oxide
Ceramic
Brass
Bronze
Fiberglass
Plastic
Stainless
Steel
Steel
Titanium
Drive
Style
A
s
y
m
m
e
t
r
i
c
a
l
D
r
i
l
l
e
d
S
p
a
n
n
e
r
E
x
t
e
r
n
a
l
1
2
-
P
o
i
n
t
E
x
t
e
r
n
a
l
H
e
x
E
x
t
e
r
n
a
l
P
e
n
t
a
g
o
n
E
x
t
e
r
n
a
l
S
q
u
a
r
e
H
e
x
H
e
x
w
i
t
h
P
i
l
o
t
R
e
c
e
s
s
J
I
S
O
n
e
W
a
y
P
h
i
l
l
i
p
s
S
l
o
t
t
e
d
S
q
u
a
r
e
T
a
m
p
e
r
-
R
e
s
i
s
t
a
n
t
H
e
x
T
a
m
p
e
r
-
R
e
s
i
s
t
a
n
t
T
o
r
x
Finish
A
n
o
d
i
z
e
d
B
l
a
c
k
O
x
i
d
e
B
l
a
c
k
Z
i
n
c
P
l
a
t
e
d
B
r
a
s
s
P
l
a
t
e
d
B
r
o
n
z
e
P
l
a
t
e
d
C
a
d
m
i
u
m
P
l
a
t
e
d
C
h
r
o
m
e
P
l
a
t
e
d
C
o
r
r
o
s
i
o
n
-
R
e
s
i
s
t
a
n
t
C
o
a
t
e
d
D
y
e
d
G
a
l
v
a
n
i
z
e
d
P
a
i
n
t
e
d
P
a
s
s
i
v
a
t
e
d
P
h
o
s
p
h
a
t
e
C
o
a
t
e
d
P
T
F
E
C
o
a
t
e
d
S
i
l
v
e
r
P
l
a
t
e
d
Specifications
Met
ASME
Standard
ASTM
Standard
DIN
Standard
Federal
Specification
IFI
Standard
ISO
Standard
Japanese
Industrial
Standard
(JIS)
JCIS
10
-
70
NAS
SAE
Standard
Threading
Fully
Threaded
Partially
Threaded
Rounded
Head
Style
Binding
Button
Cheese
Fillister
Pan
Round
Truss
Head
Diameter
0
.
0
3
8
"
0
.
0
4
0
"
0
.
0
5
6
"
0
.
0
6
0
"
0
.
0
6
1
"
0
.
0
6
2
"
0
.
0
6
5
"
0
.
0
8
2
"
0
.
0
8
6
"
0
.
0
8
9
"
0
.
0
9
"
0
.
0
9
6
"
0
.
1
0
7
"
0
.
1
1
2
"
0
.
1
1
3
"
Countersink
Angle
60°
82°
90°
100°
Military
Specifications
Met
Army
-
Navy
Specification
Military
Specification
Head
Height
0
.
0
1
1
"
0
.
0
1
6
"
0
.
0
1
8
"
0
.
0
2
5
"
0
.
0
2
6
"
0
.
0
2
8
"
0
.
0
3
0
"
0
.
0
3
1
"
0
.
0
3
2
"
0
.
0
3
3
"
0
.
0
3
5
"
0
.
0
3
6
"
0
.
0
3
7
"
0
.
0
3
8
"
0
.
0
3
9
"
Thread
Direction
Left
Hand
Right
Hand
Thread
Type
Metric
UN
UNC
UNEF
UNF
UNRC
UNRF
UNS
Thread
Spacing
Coarse
Fine
Extra
Fine
Tensile
Strength
Less
than
20,000
psi
20,000
psi
to
39,999
psi
40,000
psi
to
59,999
psi
60,000
psi
to
99,999
psi
100,000
psi
or
greater
Not
Rated
Thread
Fit
Metric
Class
4g6g
Metric
Class
4h
Metric
Class
5g6g
Metric
Class
6g
Metric
Class
6h
Unified
Standard
Class
2A
Unified
Standard
Class
2B
Unified
Standard
Class
3A
Not
Rated
Flat
Head
Profile
Standard
Undercut
Drive
Size
0
.
0
3
5
"
0
.
0
5
0
"
1
/
1
6
"
5
/
6
4
"
3
/
3
2
"
7
/
6
4
"
1
/
8
"
9
/
6
4
"
5
/
3
2
"
3
/
1
6
"
7
/
3
2
"
1
/
4
"
5
/
1
6
"
3
/
8
"
7
/
1
6
"
RoHS
Compliance
RoHS
3
(2015/863/EU)
Compliant
RoHS
3
(2015/863/EU)
Compliant
with
Exemptions
Not
Compliant
Hardness
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
5
R
o
c
k
w
e
l
l
B
6
0
R
o
c
k
w
e
l
l
B
6
9
R
o
c
k
w
e
l
l
B
7
0
R
o
c
k
w
e
l
l
B
7
1
R
o
c
k
w
e
l
l
B
7
3
R
o
c
k
w
e
l
l
B
7
4
R
o
c
k
w
e
l
l
B
7
8
R
o
c
k
w
e
l
l
B
8
0
R
o
c
k
w
e
l
l
B
8
1
R
o
c
k
w
e
l
l
B
8
3
R
o
c
k
w
e
l
l
B
8
4
R
o
c
k
w
e
l
l
B
8
5
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36,810 Products
Fastening and Joining
Rounded
Head
Screws
Sit
just
above
the
surface
for
a
low
-
profile
finish
and
hold
tighter
than
flat
head
screws
10,467 products
Flat
Head
Screws
Fit
in
countersunk
holes
for
a
flush
finish
6,558 products
Socket
Head
Screws
With
a
deeper
drive
than
flat
and
rounded
head
screws,
these
withstand
more
torque
for
a
tighter
hold
7,880 products
Hex
Head
Screws
Used
with
nuts
to
create
a
stronger
joint
than
flat
and
rounded
screws
8,893 products
Tapping
Screws
Fasten
a
range
of
materials
together
without
needing
to
tap
the
hole
first
2,387 products
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Assortments
Stay
prepared
by
keeping
fasteners
in
common
sizes
and
materials
on
hand
13 products
12
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Point
Screws
12
contact
points
handle
more
torque
than
a
hex
head
while
a
flange
eliminates
the
need
for
a
washer
208 products
Square
Head
Screws
Turn
the
large
flat
sides
with
a
wrench
into
square
holes
that
stop
further
rotation
131 products
Pentagon
Head
Screws
Create
a
tamper
-
resistant
joint
with
a
head
than
can
only
be
removed
with
a
5
-
point
socket
15 products
Fabricating and Machining
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Tracks
Add
fixturing
to
flat
surfaces
on
machines
such
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The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)