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System
of
Measurement
Inch
Metric
Thread
Size
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
6
-
3
2
6
-
4
0
6
-
4
8
6
-
8
0
Length
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
"
9
/
3
2
"
5
/
1
6
"
0
.
3
2
2
"
0
.
3
4
7
"
3
/
8
"
Material
Aluminum
Aluminum
Oxide
Ceramic
Brass
Bronze
Fiberglass
Nickel
Plastic
Stainless
Steel
Steel
Titanium
Fastener
Head
Type
Flat
Headless
Hex
Rounded
Socket
Thumb
Threading
Fully
Threaded
Partially
Threaded
Threaded
on
Both
Ends
Threaded
on
One
End
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
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
c
B
a
r
r
i
e
r
C
o
a
t
e
d
H
o
t
-
D
i
p
p
e
d
G
a
l
v
a
n
i
z
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
T
i
t
a
n
i
u
m
C
a
r
b
o
n
N
i
t
r
i
d
e
(
T
i
C
N
)
C
o
a
t
e
d
Drive
Style
External
Hex
Hex
Hex
with
Pilot
Recess
Phillips
Slotted
Tamper
-
Resistant
Hex
Torx
Fastener
Strength
Grade/Class
ASTM
Grade
B7
ASTM
Grade
B8
ASTM
Grade
B8M
ASTM
Grade
A325
ASTM
Grade
A490
ISO
Class
8.8
ISO
Class
10.9
ISO
Class
12.9
SAE
Grade
5
SAE
Grade
8
SAE
Grade
9
Head
Width
1
/
8
"
3
/
1
6
"
0
.
1
8
8
"
1
/
4
"
0
.
3
1
2
"
5
/
1
6
"
0
.
3
1
3
"
3
/
8
"
7
/
1
6
"
0
.
4
3
8
"
1
/
2
"
0
.
5
6
2
"
9
/
1
6
"
0
.
5
6
3
"
5
/
8
"
Head
Height
0
.
0
3
1
"
1
/
3
2
"
0
.
0
3
2
"
0
.
0
3
3
"
0
.
0
3
9
"
0
.
0
4
2
"
0
.
0
4
3
"
0
.
0
4
4
"
0
.
0
4
6
"
3
/
6
4
"
0
.
0
4
7
"
0
.
0
5
2
"
0
.
0
5
3
"
0
.
0
5
4
"
0
.
0
5
5
"
Thread
Direction
See all
Right
Hand
Thread
Type
Acme
Coil
Metric
UN
UNC
UNEF
UNF
UNRC
UNRF
UNS
Thread
Pitch
0
.
2
m
m
0
.
2
5
m
m
0
.
3
m
m
0
.
3
5
m
m
0
.
4
m
m
0
.
4
5
m
m
0
.
5
m
m
0
.
6
m
m
0
.
7
m
m
0
.
7
5
m
m
0
.
8
m
m
1
m
m
1
.
2
5
m
m
1
.
5
m
m
1
.
7
5
m
m
Thread
Spacing
Coarse
Fine
Extra
Fine
Ultra
Fine
Socket
Head
Profile
High
Low
Standard
Ultra
Low
Specifications
Met
ASME
Standard
ASTM
Standard
DIN
Standard
Federal
Specification
IFI
-
111
ISO
Standard
Japanese
Industrial
Standard
(JIS)
NAS
SAE
Standard
Screw
Size
N
o
.
4
N
o
.
6
N
o
.
7
N
o
.
8
N
o
.
9
N
o
.
1
0
N
o
.
1
2
N
o
.
1
4
N
o
.
1
7
3
/
1
6
"
1
/
4
"
5
/
1
6
"
3
/
8
"
1
/
2
"
5
/
8
"
Screw
Features
Cutting
Wings
Flanged
Nonmarring
Tip
Sealing
Tension
Indicating
Vented
With
Washer
Head
Diameter
0
.
0
9
6
"
0
.
1
1
4
"
0
.
1
1
6
"
0
.
1
1
8
"
0
.
1
2
9
"
0
.
1
3
8
"
0
.
1
3
9
"
0
.
1
4
"
9
/
6
4
"
0
.
1
4
1
"
0
.
1
4
5
"
5
/
3
2
"
0
.
1
6
1
"
0
.
1
6
4
"
0
.
1
6
8
"
Tip
Type
Ball
Blunt
Cone
Cup
Drilling
Extended
Flat
Oval
Pointed
Soft
Swivel
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
Drive
Size
0
.
0
2
8
"
0
.
0
3
5
"
3
/
6
4
"
0
.
0
5
0
"
1
/
1
6
"
5
/
6
4
"
3
/
3
2
"
7
/
6
4
"
1
/
8
"
9
/
6
4
"
0
.
1
5
6
"
5
/
3
2
"
3
/
1
6
"
7
/
3
2
"
1
/
4
"
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35,312 Products
Fastening and Joining
Hex
Head
Screws
Used
with
nuts
to
create
a
stronger
joint
than
flat
and
rounded
screws
8,774 products
Tapping
Screws
Fasten
a
range
of
materials
together
without
needing
to
tap
the
hole
first
1,203 products
Socket
Head
Screws
With
a
deeper
drive
than
flat
and
rounded
head
screws,
these
withstand
more
torque
for
a
tighter
hold
7,730 products
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Screws
Fasten
material
to
wood
or
pieces
of
wood
to
each
other
452 products
Rounded
Head
Screws
Sit
just
above
the
surface
for
a
low
-
profile
finish
and
hold
tighter
than
flat
head
screws
2,708 products
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Head
Screws
Fit
in
countersunk
holes
for
a
flush
finish
2,556 products
Set
Screws
Exert
pressure
at
the
tip
to
hold
parts
in
place,
unlike
screws
that
hold
material
together
with
threads
4,776 products
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Screws
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parts
around
the
cylinder
under
the
head
to
guide
and
align
them
during
installation
6,219 products
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Assortments
Stay
prepared
by
keeping
fasteners
in
common
sizes
and
materials
on
hand
4 products
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Screws
Tighten
and
loosen
by
hand
without
the
need
for
tools
78 products
Captive
Panel
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Secure
panels
and
enclosures
while
still
having
access
to
them
115 products
Joint
Clamps
for
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secure
joints
between
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butcher
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countertops
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structural
joints
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-
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fastener
185 products
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along
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broad,
square
threads
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27 products
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The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)