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System
of
Measurement
Inch
Metric
Thread
Size
See all
M12
Thread
Pitch
1
mm
1.25
mm
1.5
mm
1.75
mm
2
mm
2.5
mm
3
mm
5
mm
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
3
m
m
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
Fastener
Head
Type
12
-
Point
Flat
Headless
Hex
Knob
Rounded
Socket
Square
Threaded
Thumb
T
-
Slot
Finish
B
l
a
c
k
O
x
i
d
e
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
H
o
t
-
D
i
p
p
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
Spacing
Coarse
Fine
Extra
Fine
Thread
Direction
Left
Hand
Right
Hand
Right
Hand
and
Left
Hand
Drive
Style
External
12
-
Point
External
Hex
External
Square
Hex
Hex
with
Pilot
Recess
Slotted
Tri
-
Groove
Wrench
Flats
Specifications
Met
ASME
Standard
ASTM
Standard
DIN
Standard
EN
Standard
ISO
Standard
NAS
SAE
Standard
Thread
Type
Metric
Metric
Ball
Metric
Rounded
Trapezoidal
Metric
Trapezoidal
UNC
Socket
Head
Profile
Low
Standard
Ultra
Low
Head
Height
4
m
m
4
.
2
m
m
6
m
m
6
.
5
m
m
6
.
6
m
m
6
.
8
m
m
6
.
9
5
m
m
7
m
m
7
.
2
m
m
7
.
5
m
m
7
.
7
m
m
8
m
m
8
.
5
m
m
8
.
7
m
m
9
m
m
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
Screw
Size
M12
Head
Diameter
1
8
m
m
1
9
m
m
2
1
m
m
2
2
m
m
2
3
m
m
2
4
m
m
2
5
.
4
m
m
2
6
.
6
m
m
2
7
m
m
3
0
m
m
3
0
.
6
5
m
m
3
1
.
8
m
m
3
6
m
m
5
0
m
m
5
1
m
m
Nut
Type
Cap
Coupling
Externally
Threaded
Flange
Hex
Locknut
Panel
Press
Fit
Rivet
Round
Sealing
Socket
Square
Tamper
Resistant
Thumb
Twist
Close
Weld
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
Drive
Size
5
mm
6
mm
8
mm
10
mm
14
mm
19
mm
Screw
Features
Flanged
Sealing
Vented
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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
Flat Head Screws
Fit in countersunk holes for a flush finish
76 products
Set Screws
Exert pressure at the tip to hold parts in place, unlike screws that hold material together with threads
140 products
Rounded Head Screws
Sit just above the surface for a low-profile finish and hold tighter than flat head screws
58 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
Shoulder Screws
Rotate parts around the cylinder under the head to guide and align them during installation
153 products
Thumb Screws
Tighten and loosen by hand without the need for tools
8 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
Tamper-Resistant Nuts
Hard to detach without special tools to prevent unwanted removal
6 products
Cap Nuts
Cover and protect threads while adding a finished look; also known as acorn nuts
9 products
Thumb Nuts
Easy to tighten and loosen by hand for making frequent adjustments
11 products
Split Nuts
Swivel to attach at any point on a threaded rod for quick installation
1 product
Socket Nuts
Install in recessed holes and tight spots where a wrench won’t fit; also known as Allen nuts
2 products
Square Nuts
Flat sides won’t spin in channels and square holes
3 products
Threaded Rods
Anchor, connect, or hang components in a wide variety of applications
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
6 products
Weld Nuts
Weld to metal surfaces to add permanent threads
8 products
Press-Fit Nuts
Push into drilled or punched holes to add threads to thin panels
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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
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Taper Pins
Fit snugly into tapered holes to secure, position, and align components
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Standoffs
Threaded to separate or connect parts as well as position components in assemblies
2 products
Thread Adapters
Join threads of a different type, size, and gender
471 products
Single-End Studs
Use the unthreaded end as a pivot point, hinge, shaft, or locator pin
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Rivet Nut Tools
Install rivet nuts
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Power Transmission
Shock Absorber Mounting Nuts
Secure shock absorbers after threading them into mounting blocks
1 product
Connecting Rods
Use with rod ends and swivel joints to link components in push/pull assemblies
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Bearing Nuts
Hold bearings, bushings, pulleys, and gears in place on threaded shafts and spindles
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Lead Screws and Nuts
Components travel along a screw with broad, square threads to clamp and lift heavy loads
18 products
Ball Screws and Nuts
Internal ball bearings roll on screws for low friction when moving components at high speeds
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Material Handling
Hoist Rings
Pivot to resist stress that would bend or break an eyebolt when lifting at an angle
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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
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Building and Machinery Hardware
Knobs
Position, tighten, and secure fixtures and equipment
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Handle Nuts
Attach to threaded shafts to quickly turn the shafts by hand
2 products
Cam Handles
For fast clamping, push down on the handle to draw two parts together
1 product
Strut Channel Framing and Fittings
Secure fittings in the U-shaped channel to route conduit and pipe or build other structures
10 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
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T-Slot Bolts
Secure clamps and workpieces to machine tables with quicker setup than a T-slot nut and stud
7 products
T-Slot Nuts
Combine with setup studs or bolts to mount fixtures to machine tables
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T-Slot Nut and Setup Stud Kits
Mount fixtures of different sizes to your machine table
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Clamps
Hold workpieces securely in place
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Lathe Chuck Jaw Nuts
Secure jaws to a CNC lathe chuck
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Electrical
Conduit and Conduit Fittings
Protect wiring from impact and the environment in runs indoors, outdoors, and underground
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The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)