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of
Measurement
Inch
Metric
Thread
Size
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1/4"
-
20
Length
1
/
8
"
3
/
1
6
"
0
.
2
"
7
/
3
2
"
0
.
2
2
"
0
.
2
3
"
1
/
4
"
0
.
2
7
"
9
/
3
2
"
5
/
1
6
"
1
1
/
3
2
"
0
.
3
6
3
"
3
/
8
"
0
.
4
2
6
"
7
/
1
6
"
Material
Aluminum
Brass
Bronze
Carbon
Fiber
Ceramic
Fiberglass
Fiberglass
-
Reinforced
Plastic
Iron
Nickel
Plastic
Stainless
Steel
Steel
Titanium
Zinc
Fastener
Head
Type
12
-
Point
Eye
Flat
Headless
Hex
Hook
Oval
Rounded
Socket
Square
Tapped
Tee
Threaded
Thumb
Drive
Style
Asymmetrical
Drilled
Spanner
External
12
-
Point
External
Hex
External
Square
Hex
One
Way
Phillips
Serrated
Edge
Slotted
Square
Tamper
-
Resistant
Hex
Tamper
-
Resistant
Torx
Tamper
-
Resistant
Torx
Plus
Torx
Torx
Plus
Tri
-
Groove
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
a
d
m
i
u
m
Y
e
l
l
o
w
-
C
h
r
o
m
a
t
e
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
r
y
F
i
l
m
L
u
b
r
i
c
a
t
e
d
G
a
l
v
a
n
i
c
B
a
r
r
i
e
r
C
o
a
t
e
d
G
a
l
v
a
n
i
z
e
d
G
l
a
z
e
d
N
e
o
p
r
e
n
e
C
o
a
t
e
d
N
i
c
k
e
l
C
h
r
o
m
e
P
l
a
t
e
d
N
i
c
k
e
l
P
l
a
t
e
d
Thread
Direction
Left
Hand
Right
Hand
Socket
Head
Profile
High
Low
Standard
Ultra
Low
Head
Height
0
.
0
5
"
0
.
0
7
3
"
0
.
0
7
8
"
5
/
6
4
"
3
/
3
2
"
0
.
1
"
0
.
1
0
5
"
0
.
1
0
7
"
0
.
1
1
"
0
.
1
2
"
1
/
8
"
0
.
1
2
7
"
0
.
1
3
2
"
9
/
6
4
"
0
.
1
4
4
"
Head
Diameter
0
.
3
"
5
/
1
6
"
3
/
8
"
0
.
3
8
"
0
.
4
1
4
"
0
.
4
3
7
"
7
/
1
6
"
0
.
4
6
"
0
.
4
6
2
"
0
.
4
7
2
"
0
.
4
7
3
"
0
.
4
7
7
"
0
.
4
7
9
"
0
.
4
8
"
3
1
/
6
4
"
Thread
Spacing
Coarse
Fine
Thread
Type
Acme
NPT
Rounded
Acme
UNC
UNF
UNJC
UNRC
Specifications
Met
ASME
Standard
ASTM
Standard
DIN
Standard
Federal
Specification
IFI
Standard
ISO
4762
MSS
Standard
NAS
SAE
Standard
UL
50
Thread
Fit
Acme
Class
2C
Metric
Class
6g
Metric
Class
6H
Unified
Standard
Class
1A
Unified
Standard
Class
1B
Unified
Standard
Class
2A
Unified
Standard
Class
2B
Unified
Standard
Class
3A
Unified
Standard
Class
3B
Size
0.156"
1/4"
1/8"
3/16"
3/32"
4
mm
5
mm
5/16"
5/32"
6
mm
8
mm
IP27
IP30
IPR27
IPR30
No.
10
No.
14
No.
2
No.
3
T27
T30
U25
Tensile
Strength
Less
than
10,000
psi
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
Hardness
B
r
i
n
e
l
l
7
0
B
r
i
n
e
l
l
1
5
0
B
r
i
n
e
l
l
1
6
0
D
u
r
o
m
e
t
e
r
7
5
D
M
o
h
s
7
.
5
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
5
6
R
o
c
k
w
e
l
l
B
6
0
R
o
c
k
w
e
l
l
B
6
1
R
o
c
k
w
e
l
l
B
6
5
R
o
c
k
w
e
l
l
B
6
7
R
o
c
k
w
e
l
l
B
6
8
R
o
c
k
w
e
l
l
B
6
9
RoHS
Compliance
RoHS
3
(2015/863/EU)
Compliant
RoHS
3
(2015/863/EU)
Compliant
with
Exemptions
Rounded
Head
Style
Binding
Button
Carriage
Fillister
Pan
Round
Truss
Fastener
Strength
Grade/Class
A
S
M
E
G
r
a
d
e
F
A
S
M
E
G
r
a
d
e
G
A
S
T
M
G
r
a
d
e
B
6
A
S
T
M
G
r
a
d
e
B
7
A
S
T
M
G
r
a
d
e
B
8
A
S
T
M
G
r
a
d
e
B
8
M
A
S
T
M
G
r
a
d
e
B
1
6
A
S
T
M
G
r
a
d
e
2
H
A
S
T
M
G
r
a
d
e
7
A
S
T
M
G
r
a
d
e
8
A
S
T
M
G
r
a
d
e
8
M
A
S
T
M
G
r
a
d
e
A
A
S
T
M
G
r
a
d
e
C
A
S
T
M
G
r
a
d
e
B
D
S
A
E
G
r
a
d
e
2
REACH
Compliance
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
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7,274 Products
Fastening and Joining
Socket
Head
Screws
With
a
deeper
drive
than
flat
and
rounded
head
screws,
these
withstand
more
torque
for
a
tighter
hold
637 products
Rounded
Head
Screws
Sit
just
above
the
surface
for
a
low
-
profile
finish
and
hold
tighter
than
flat
head
screws
944 products
Hex
Head
Screws
Used
with
nuts
to
create
a
stronger
joint
than
flat
and
rounded
screws
671 products
Flat
Head
Screws
Fit
in
countersunk
holes
for
a
flush
finish
593 products
Thumb
Screws
Tighten
and
loosen
by
hand
without
the
need
for
tools
270 products
Set
Screws
Exert
pressure
at
the
tip
to
hold
parts
in
place,
unlike
screws
that
hold
material
together
with
threads
345 products
Shoulder
Screws
Rotate
parts
around
the
cylinder
under
the
head
to
guide
and
align
them
during
installation
527 products
Carriage
Bolts
A
smooth
head
provides
a
finished
look
while
a
square
neck
keeps
the
bolt
in
place
when
using
a
nut
138 products
Studs
Insert
into
holes
to
add
a
threaded
fastening
point
for
attaching
nuts
121 products
Tapping
Screws
Fasten
a
range
of
materials
together
without
needing
to
tap
the
hole
first
152 products
Elevator
Bolts
Create
a
flush
joint
to
allow
movement
in
tight
spaces
such
as
grain
elevators
and
belting
systems
59 products
12
-
Point
Screws
12
contact
points
handle
more
torque
than
a
hex
head
while
a
flange
eliminates
the
need
for
a
washer
25 products
Hanger
Bolts
Suspend
pipe
and
other
fixtures
with
wire
or
cable
ties
12 products
T
-
Bolts
Turn
by
hand
for
easy
fastening,
use
as
a
handle,
or
attach
as
a
point
for
straps
and
clamps
2 products
Captive
Panel
Screws
Secure
panels
and
enclosures
while
still
having
access
to
them
16 products
Joint
Clamps
for
Wood
Make
secure
joints
between
boards,
butcher
blocks,
and
countertops
3 products
Wood
Screws
Fasten
material
to
wood
or
pieces
of
wood
to
each
other
19 products
Square
Head
Screws
Turn
the
large
flat
sides
with
a
wrench
into
square
holes
that
stop
further
rotation
15 products
Hold
-
Down
Bolts
Hold
material
under
the
bent
head
while
the
other
end
is
tightened
down
with
a
nut
7 products
Fastener
Kits
Stay
prepared
by
keeping
fasteners
in
common
sizes
and
materials
on
hand
2 products
Hex
Nuts
Handle
most
general
fastening
needs
117 products
Locknuts
Hold
fasteners
in
place
to
prevent
loosening
from
vibration
70 products
Flange
Nuts
The
flange
distributes
pressure,
so
you
don't
need
a
washer
39 products
Thumb
Nuts
Easy
to
tighten
and
loosen
by
hand
for
making
frequent
adjustments
54 products
Cap
Nuts
Cover
and
protect
threads
while
adding
a
finished
look
34 products
Coupling
Nuts
Connect
and
extend
threaded
rods
25 products
Tamper
-
Resistant
Nuts
Hard
to
detach
without
special
tools
to
prevent
unwanted
removal
8 products
Push
-
Button
Nuts
Disengage
the
threads
to
quickly
slide
along
threaded
rods
3 products
Square
Nuts
Flat
sides
won’t
spin
in
channels
and
square
holes
10 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
2 products
Sealing
Nuts
Prevent
leaks
and
block
out
contaminants
with
a
molded
-
in
seal
2 products
Threaded
Inserts
Create
new
threads
or
repair
stripped
threads
207 products
Rivet
Nuts
Add
threads
to
thin
panels
with
access
from
only
one
side;
also
known
as
blind
inserts
39 products
Adhesive
-
Mount
Nuts
Attach
threads
to
material
that’s
too
thin
for
a
threaded
insert
4 products
Press
-
Fit
Nuts
Push
into
drilled
or
punched
holes
to
add
threads
to
thin
panels
14 products
Weld
Nuts
Weld
to
metal
surfaces
to
add
permanent
threads
33 products
Clip
-
On
Nuts
Slide
onto
the
edge
of
thin
panels
to
create
a
fastening
point
12 products
Screw
-
Mount
Nuts
Mount
with
screws,
rivets,
and
nails
to
add
threads
to
a
surface
8 products
Dowel
Nuts
Form
joints
in
blind
holes
in
wood
5 products
Snap
-
In
Nuts
Push
into
square
holes
in
thin
materials
to
add
bolts
for
aligning
off
-
center
parts
11 products
Tube
-
Connecting
Nuts
Push
inside
tubes
to
join
them
with
a
threaded
stud
instead
of
welding
12 products
Push
Nuts
Press
onto
threads
for
a
light
duty
hold
that’s
faster
to
install
than
typical
nuts
4 products
Binding
Barrels
and
Screws
Thread
together
for
a
low
-
profile
fastener
167 products
Threaded
Rods
Insert
into
threaded
holes
to
connect
components
380 products
Thread
Adapters
Join
threads
of
a
different
type,
size,
and
gender
415 products
Standoffs
Threaded
to
separate
or
connect
parts
as
well
as
position
components
in
assemblies
326 products
Anchors
Secure
structural
joints
in
concrete,
brick,
and
other
building
materials
68 products
Quick
-
Release
Pins
Fasten
or
remove
components
on
equipment
with
a
spring
-
loaded
retaining
ball
or
built
-
in
magnet
5 products
Dowel
Pins
Use
as
pivots,
hinges,
shafts,
jigs,
and
fixtures
to
position
and
hold
parts
in
place
98 products
Taper
Pins
Fit
snugly
into
tapered
holes
to
secure,
position,
and
align
components
2 products
Rivet
Nut
Tools
Install
rivet
nuts
4 products
Anchor
Installation
Tools
Drive
with
a
hammer
to
expand
and
secure
anchors
in
place
5 products
Building and Machinery Hardware
Knobs
Position,
tighten,
and
secure
fixtures
and
equipment
129 products
Cam
Handles
For
fast
clamping,
push
down
on
the
handle
to
draw
two
parts
together
12 products
Machine
Handles
Arms
give
you
extra
leverage
to
secure
and
position
jigs,
fixtures,
and
other
equipment
1 product
Indicating
Knobs
Control
devices
and
view
settings
at
a
glance
4 products
Handle
Nuts
Attach
to
threaded
shafts
to
quickly
turn
the
shafts
by
hand
2 products
T
-
Slotted
Framing
and
Fittings
The
most
versatile
system,
attach
fittings
along
the
continuous
slots
to
build
virtually
anything
9 products
Strut
Channel
Framing
and
Fittings
Secure
fittings
in
the
U
-
shaped
channel
to
route
conduit
and
pipe
or
build
other
structures
22 products
Leveling
Mount
Inserts
Slip
onto
equipment
and
furniture
to
add
threaded
-
stud
leveling
feet
7 products
Material Handling
Eyebolts
Route
rope
through
the
loop
or
attach
hooks
and
shackles
for
lifting
93 products
Hoist
Rings
Pivot
to
resist
stress
that
would
bend
or
break
an
eyebolt
when
lifting
at
an
angle
7 products
Eye
Nuts
Pair
with
bolts
or
threaded
rod
to
lift
and
hang
components
6 products
Turnbuckle
Bodies
Join
turnbuckle
end
fittings
for
adjusting
the
length
and
tension
of
rope
and
chain
4 products
U
-
Bolts
Anchor
heavy
pipe,
tube,
and
conduit;
stronger
than
routing
clamps
and
hangers
138 products
U
-
Bolt
Plates
Reinforce
mounted
U
-
bolts
for
a
more
secure
hold
52 products
Routing
Ring
Bases
Temporarily
attach
routing
rings
to
steel
and
iron
surfaces
with
a
magnet
1 product
Routing
Rings
Suspend
wire
and
cable
by
feeding
it
through
the
eyehole
9 products
Rope
Cleats
Temporarily
secure
rope
1 product
Fabricating and Machining
Setup
Studs
Secure
setup
clamps
and
fixtures
to
your
machine
table
or
assemble
heavy
machines
31 products
T
-
Slot
Nuts
Combine
with
setup
studs
to
mount
fixtures
to
machine
tables
8 products
Clamps
Hold
workpieces
securely
in
place
20 products
Power Transmission
Connecting
Rods
Use
with
rod
ends
and
swivel
joints
to
link
components
in
push/pull
assemblies
24 products
Lead
Screws
and
Nuts
Components
travel
along
a
screw
with
broad,
square
threads
to
clamp
and
lift
heavy
loads
16 products
Fluid Handling
Float
Rods
Connect
valve
bodies
and
floats
to
build
or
repair
a
float
valve
6 products
The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)