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System
of
Measurement
Inch
Metric
Thread
Size
See all
M12
Length
3
/
4
"
1
5
/
1
6
"
1
"
1
3
/
8
"
2
1
/
8
"
2
2
9
/
3
2
"
3
3
/
4
"
1
0
m
m
1
2
m
m
1
4
m
m
1
6
m
m
1
8
m
m
2
0
m
m
2
2
m
m
2
5
m
m
Thread
Pitch
1
mm
1.25
mm
1.5
mm
1.75
mm
2
mm
2.5
mm
3
mm
5
mm
Fastener
Head
Type
12
-
Point
Flat
Headless
Hex
Knob
Rounded
Socket
Square
Threaded
Thumb
T
-
Slot
Material
Aluminum
Brass
Bronze
Fiberglass
Grade
2
Titanium
Iron
Plastic
Stainless
Steel
Steel
Zinc
Threading
Fully
Threaded
Partially
Threaded
Threaded
on
Both
Ends
Threaded
on
One
End
Fastener
Strength
Grade/Class
ASTM
Grade
B7
ASTM
Grade
B8M
ASTM
Grade
2H
ISO
Class
8.8
ISO
Class
10.9
ISO
Class
12.9
ISO
Class
04
ISO
Class
5
ISO
Class
6
ISO
Class
8
ISO
Class
10
ISO
Class
12
SAE
Grade
2
Finish
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
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
N
i
c
k
e
l
P
l
a
t
e
d
N
y
l
o
n
C
o
a
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
o
w
d
e
r
C
o
a
t
e
d
Z
i
n
c
F
l
a
k
e
C
o
a
t
e
d
Z
i
n
c
P
l
a
t
e
d
Z
i
n
c
Y
e
l
l
o
w
-
C
h
r
o
m
a
t
e
P
l
a
t
e
d
Thread
Direction
Left
Hand
Right
Hand
Right
Hand
and
Left
Hand
Thread
Spacing
Coarse
Fine
Extra
Fine
Specifications
Met
ASME
Standard
ASTM
Standard
DIN
Standard
EN
Standard
ISO
Standard
Japanese
Industrial
Standard
(JIS)
NAS
SAE
Standard
Socket
Head
Profile
Low
Standard
Ultra
Low
Drive
Style
External
12
-
Point
External
Hex
External
Square
Hex
Hex
with
Pilot
Recess
Slotted
Tri
-
Groove
Wrench
Flats
Thread
Type
Metric
Metric
Ball
Metric
Rounded
Trapezoidal
Metric
Trapezoidal
UNC
Head
Height
4
mm
4.2
mm
6
mm
6.5
mm
6.6
mm
6.8
mm
6.95
mm
7
mm
7.2
mm
7.5
mm
7.7
mm
8
mm
8.5
mm
8.7
mm
9
mm
9.52
mm
10
mm
11
mm
11.5
mm
11.7
mm
11.8
mm
12
mm
14
mm
15
mm
16
mm
17
mm
19
mm
24
mm
25.8
mm
38
mm
Thread
Fit
M
e
t
r
i
c
C
l
a
s
s
4
g
6
g
M
e
t
r
i
c
C
l
a
s
s
4
h
M
e
t
r
i
c
C
l
a
s
s
4
H
5
H
M
e
t
r
i
c
C
l
a
s
s
5
g
6
g
M
e
t
r
i
c
C
l
a
s
s
5
H
M
e
t
r
i
c
C
l
a
s
s
6
g
M
e
t
r
i
c
C
l
a
s
s
6
G
M
e
t
r
i
c
C
l
a
s
s
6
h
M
e
t
r
i
c
C
l
a
s
s
6
H
M
e
t
r
i
c
C
l
a
s
s
7
H
M
e
t
r
i
c
C
l
a
s
s
8
g
M
e
t
r
i
c
I
n
t
e
r
f
e
r
e
n
c
e
S
k
6
M
e
t
r
i
c
T
r
a
p
e
z
o
i
d
a
l
C
l
a
s
s
7
e
M
e
t
r
i
c
T
r
a
p
e
z
o
i
d
a
l
C
l
a
s
s
7
H
M
e
t
r
i
c
T
r
a
p
e
z
o
i
d
a
l
C
l
a
s
s
8
e
RoHS
Compliance
RoHS
3
(2015/863/EU)
Compliant
RoHS
3
(2015/863/EU)
Compliant
with
Exemptions
Not
Compliant
Nut
Type
C
a
p
C
o
u
p
l
i
n
g
E
x
t
e
r
n
a
l
l
y
T
h
r
e
a
d
e
d
F
l
a
n
g
e
H
e
x
L
o
c
k
n
u
t
P
a
n
e
l
P
r
e
s
s
F
i
t
R
i
v
e
t
R
o
u
n
d
S
o
c
k
e
t
S
q
u
a
r
e
T
a
m
p
e
r
R
e
s
i
s
t
a
n
t
T
h
u
m
b
T
w
i
s
t
C
l
o
s
e
Tensile
Strength
10,000
psi
to
19,999
psi
20,000
psi
to
29,999
psi
30,000
psi
to
99,999
psi
100,000
psi
or
greater
Not
Rated
REACH
Compliance
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
REACH
(EC
1907/2006)
(07/08/2021,
219
SVHC)
Compliant
Not
Compliant
Hardness
B
r
i
n
e
l
l
7
0
B
r
i
n
e
l
l
1
2
6
B
r
i
n
e
l
l
1
5
0
B
r
i
n
e
l
l
1
6
0
B
r
i
n
e
l
l
1
6
7
D
u
r
o
m
e
t
e
r
7
4
D
R
o
c
k
w
e
l
l
B
4
9
R
o
c
k
w
e
l
l
B
5
5
R
o
c
k
w
e
l
l
B
5
6
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
7
5
R
o
c
k
w
e
l
l
B
7
9
R
o
c
k
w
e
l
l
B
8
0
R
o
c
k
w
e
l
l
B
8
2
Head
Width
13
mm
14
mm
16
mm
17
mm
18
mm
19
mm
21
mm
22
mm
25.38
mm
38.1
mm
50
mm
63.5
mm
Forward
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2,333 Products
Fastening and Joining
Hex
Head
Screws
Used
with
nuts
to
create
a
stronger
joint
than
flat
and
rounded
screws
372 products
Socket
Head
Screws
With
a
deeper
drive
than
flat
and
rounded
head
screws,
these
withstand
more
torque
for
a
tighter
hold
235 products
Set
Screws
Exert
pressure
at
the
tip
to
hold
parts
in
place,
unlike
screws
that
hold
material
together
with
threads
140 products
Flat
Head
Screws
Fit
in
countersunk
holes
for
a
flush
finish
76 products
Rounded
Head
Screws
Sit
just
above
the
surface
for
a
low
-
profile
finish
and
hold
tighter
than
flat
head
screws
59 products
Shoulder
Screws
Rotate
parts
around
the
cylinder
under
the
head
to
guide
and
align
them
during
installation
153 products
12
-
Point
Screws
12
contact
points
handle
more
torque
than
a
hex
head
while
a
flange
eliminates
the
need
for
a
washer
5 products
Thumb
Screws
Tighten
and
loosen
by
hand
without
the
need
for
tools
8 products
Studs
Insert
into
holes
to
add
a
threaded
fastening
point
for
attaching
nuts
4 products
Carriage
Bolts
A
smooth
head
provides
a
finished
look
while
a
square
neck
keeps
the
bolt
in
place
when
using
a
nut
17 products
Wood
Screws
Fasten
material
to
wood
or
pieces
of
wood
to
each
other
15 products
Hex
Nuts
Handle
most
general
fastening
needs
99 products
Flange
Nuts
The
flange
distributes
pressure,
so
you
don't
need
a
washer
55 products
Locknuts
Hold
fasteners
in
place
to
prevent
loosening
from
vibration
47 products
Lug
Nuts
Secure
pneumatic
wheels
to
axles
3 products
Coupling
Nuts
Connect
and
extend
threaded
rods
15 products
Panel
Nuts
Extremely
thin
for
tight
spots
such
as
electrical
panels;
also
known
as
dress
nuts
1 product
Cap
Nuts
Cover
and
protect
threads
while
adding
a
finished
look
9 products
Tamper
-
Resistant
Nuts
Hard
to
detach
without
special
tools
to
prevent
unwanted
removal
4 products
Thumb
Nuts
Easy
to
tighten
and
loosen
by
hand
for
making
frequent
adjustments
11 products
Socket
Nuts
Install
in
recessed
holes
and
tight
spots
where
a
wrench
won’t
fit;
also
known
as
Allen
nuts
2 products
Split
Nuts
Swivel
to
attach
at
any
point
on
a
threaded
rod
for
quick
installation
1 product
Square
Nuts
Flat
sides
won’t
spin
in
channels
and
square
holes
4 products
Threaded
Rods
Insert
into
threaded
holes
to
connect
components
139 products
Threaded
Inserts
Create
new
threads
or
repair
stripped
threads
59 products
Rivet
Nuts
Add
threads
to
thin
panels
with
access
from
only
one
side;
also
known
as
blind
inserts
3 products
Weld
Nuts
Weld
to
metal
surfaces
to
add
permanent
threads
3 products
Press
-
Fit
Nuts
Push
into
drilled
or
punched
holes
to
add
threads
to
thin
panels
3 products
Quick
-
Release
Pin
Receptacles
Secure
quick
-
release
pins
when
you
don’t
have
a
through
hole
1 product
Quick
-
Release
Pins
Fasten
or
remove
components
on
equipment
with
a
spring
-
loaded
retaining
ball
or
built
-
in
magnet
2 products
Taper
Pins
Fit
snugly
into
tapered
holes
to
secure,
position,
and
align
components
24 products
Thread
Adapters
Join
threads
of
a
different
type,
size,
and
gender
471 products
Standoffs
Threaded
to
separate
or
connect
parts
as
well
as
position
components
in
assemblies
2 products
Rivet
Nut
Tools
Install
rivet
nuts
2 products
Power Transmission
Bearing
Nuts
Hold
bearings,
bushings,
pulleys,
and
gears
in
place
on
threaded
shafts
and
spindles
7 products
Shock
Absorber
Mounting
Nuts
Secure
shock
absorbers
after
threading
them
into
mounting
blocks
1 product
Lead
Screws
and
Nuts
Components
travel
along
a
screw
with
broad,
square
threads
to
clamp
and
lift
heavy
loads
20 products
Connecting
Rods
Use
with
rod
ends
and
swivel
joints
to
link
components
in
push/pull
assemblies
32 products
Ball
Screws
and
Nuts
Internal
ball
bearings
roll
on
screws
for
low
friction
when
moving
components
at
high
speeds
4 products
Material Handling
Hoist
Rings
Pivot
to
resist
stress
that
would
bend
or
break
an
eyebolt
when
lifting
at
an
angle
19 products
Eyebolts
Route
rope
through
the
loop
or
attach
hooks
and
shackles
for
lifting
14 products
Eye
Nuts
Pair
with
bolts
or
threaded
rod
to
lift
and
hang
components
6 products
U
-
Bolts
Anchor
heavy
pipe,
tube,
and
conduit;
stronger
than
routing
clamps
and
hangers
4 products
Building and Machinery Hardware
Knobs
Position,
tighten,
and
secure
fixtures
and
equipment
15 products
Cam
Handles
For
fast
clamping,
push
down
on
the
handle
to
draw
two
parts
together
1 product
Handle
Nuts
Attach
to
threaded
shafts
to
quickly
turn
the
shafts
by
hand
2 products
Strut
Channel
Framing
and
Fittings
Secure
fittings
in
the
U
-
shaped
channel
to
route
conduit
and
pipe
or
build
other
structures
9 products
Leveling
Mount
Inserts
Slip
onto
equipment
and
furniture
to
add
threaded
-
stud
leveling
feet
4 products
Fabricating and Machining
Setup
Studs
Secure
setup
clamps
and
fixtures
to
your
machine
table
or
assemble
heavy
machines
48 products
T
-
Slot
Nuts
Combine
with
setup
studs
to
mount
fixtures
to
machine
tables
12 products
T
-
Slot
Nut
and
Setup
Stud
Kits
Mount
fixtures
of
different
sizes
to
your
machine
table
3 products
T
-
Slot
Bolts
Secure
clamps
and
workpieces
to
machine
tables
with
quicker
setup
than
a
T
-
slot
nut
and
stud
7 products
Clamps
Hold
workpieces
securely
in
place
6 products
Lathe
Chuck
Jaw
Nuts
Secure
jaws
to
a
CNC
lathe
chuck
2 products
Electrical
Conduit
and
Conduit
Fittings
Protect
wiring
from
impact
and
the
environment
in
runs
indoors,
outdoors,
and
underground
4 products
The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)