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System
of
Measurement
Inch
Thread
Size
See all
7/8"
-
9
Material
400
Nickel
6061
Aluminum
Brass
Fiberglass
Nylon
6/6
Silicon
Bronze
Stainless
Steel
Steel
Nut
Type
Cap
Coupling
Flange
Hex
Locknut
Socket
Square
Twist
Close
Fastener
Strength
Grade/Class
ASME
Grade
G
ASTM
Grade
2H
ASTM
Grade
7
ASTM
Grade
8
ASTM
Grade
8M
ASTM
Grade
C
ASTM
Grade
DH
SAE
Grade
2
SAE
Grade
5
SAE
Grade
8
SAE
Grade
9
Hex
Nut
Profile
Heavy
Standard
Thin
Thin
Heavy
Finish
Black
Oxide
Cadmium
Plated
Cadmium
Yellow
-
Chromate
Plated
Galvanized
Phosphate
Coated
PTFE
Coated
Zinc
Flake
Coated
Zinc
Plated
Zinc
Yellow
-
Chromate
Plated
Thread
Direction
Left
Hand
Right
Hand
Width
1
3/16"
1
1/4"
1
19/64"
1
5/16"
1
3/8"
1.416"
1
7/16"
1
1/2"
1
15/16"
2"
Thread
Spacing
Coarse
Height
15/32"
31/64"
21/32"
3/4"
49/64"
25/32"
51/64"
13/16"
0.859"
55/64"
7/8"
57/64"
29/32"
63/64"
1"
1
1/64"
1
1/32"
1
1/8"
1
9/64"
1.34"
1
23/64"
1
5/8"
Thread
Type
UNC
Thread
Fit
ASME
Interference
Class
5
Unified
Standard
Class
2A
Unified
Standard
Class
2B
Unified
Standard
Class
3A
Specifications
Met
ASME
B18.2.2
ASTM
Standard
Drive
Style
External
Hex
External
Square
Hex
RoHS
Compliance
RoHS
3
(2015/863/EU)
Compliant
RoHS
3
(2015/863/EU)
Compliant
with
Exemptions
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
Not
Compliant
DFARS
Compliance
Specialty
Metals
Compliant
(252.225
-
7009)
Specialty
Metals
COTS
-
Exempt
Locking
Type
Cotter
Pin
Distorted
Thread
Flex
-
Top
Nylon
Insert
Serrations
Steel
Insert
Color
Black
Blue
Gray
Off
-
White
Length
2
1/4"
2
1/2"
3"
3
1/2"
4"
5"
6"
7"
8"
10"
12"
14"
16"
18"
20"
22"
24"
Threading
Fully
Threaded
Partially
Threaded
Threaded
on
Both
Ends
Flange
Diameter
1
11/16"
1
3/4"
Forward
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190 Products
Fastening and Joining
Hex
Nuts
Handle
most
general
fastening
needs
68 products
Locknuts
Hold
fasteners
in
place
to
prevent
loosening
from
vibration
32 products
Flange
Nuts
The
flange
distributes
pressure,
so
you
don't
need
a
washer
8 products
Coupling
Nuts
Connect
and
extend
threaded
rods
13 products
Cap
Nuts
Cover
and
protect
threads
while
adding
a
finished
look
7 products
Square
Nuts
Flat
sides
won’t
spin
in
channels
and
square
holes
4 products
Socket
Nuts
Install
in
recessed
holes
and
tight
spots
where
a
wrench
won’t
fit;
also
known
as
Allen
nuts
1 product
Split
Nuts
Swivel
to
attach
at
any
point
on
a
threaded
rod
for
quick
installation
1 product
Thread
Adapters
Join
threads
of
a
different
type,
size,
and
gender
13 products
Fabricating and Machining
T
-
Slot
Nuts
Combine
with
setup
studs
to
mount
fixtures
to
machine
tables
8 products
T
-
Slot
Bolts
Secure
clamps
and
workpieces
to
machine
tables
with
quicker
setup
than
a
T
-
slot
nut
and
stud
5 products
T
-
Slot
Nut
and
Setup
Stud
Kits
Mount
fixtures
of
different
sizes
to
your
machine
table
3 products
Setup
Studs
Secure
setup
clamps
and
fixtures
to
your
machine
table
or
assemble
heavy
machines
16 products
Material Handling
Eye
Nuts
Pair
with
bolts
or
threaded
rod
to
lift
and
hang
components
3 products
Turnbuckle
Bodies
Join
turnbuckle
end
fittings
for
adjusting
the
length
and
tension
of
rope
and
chain
5 products
Building and Machinery Hardware
Strut
Channel
Framing
and
Fittings
Secure
fittings
in
the
U
-
shaped
channel
to
route
conduit
and
pipe
or
build
other
structures
1 product
The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)