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System
of
Measurement
Inch
Metric
Thread
Size
0
-
8
0
2
-
5
6
3
-
4
8
3
-
5
6
4
-
4
0
4
-
4
8
5
-
4
0
6
-
3
2
6
-
4
0
8
-
3
2
8
-
3
6
1
0
-
2
4
1
0
-
3
2
1
2
-
2
4
1
2
-
2
8
Nut
Type
Hex
Locknut
Material
6061
Aluminum
Brass
Grade
5
Titanium
Stainless
Steel
Steel
Locking
Type
Distorted
Thread
Flex
-
Top
Lock
Washer
Nylon
Insert
Spring
-
Stop
Steel
Insert
Hex
Nut
Profile
Heavy
High
Narrow
Standard
Thin
Thin
Heavy
Height
1
/
1
6
"
3
/
3
2
"
7
/
6
4
"
1
/
8
"
9
/
6
4
"
5
/
3
2
"
1
1
/
6
4
"
3
/
1
6
"
1
3
/
6
4
"
7
/
3
2
"
1
5
/
6
4
"
1
/
4
"
1
7
/
6
4
"
9
/
3
2
"
1
9
/
6
4
"
Finish
Black
Oxide
Black
Zinc
Plated
Cadmium
Plated
Cadmium
Yellow
-
Chromate
Plated
Corrosion
-
Resistant
Coated
Phosphate
Coated
Silver
Plated
Zinc
Flake
Coated
Zinc
Plated
Zinc
Yellow
-
Chromate
Plated
Width
7
/
6
4
"
1
/
4
"
5
/
1
6
"
1
1
/
3
2
"
3
/
8
"
7
/
1
6
"
1
/
2
"
9
/
1
6
"
5
/
8
"
1
1
/
1
6
"
3
/
4
"
1
3
/
1
6
"
7
/
8
"
1
5
/
1
6
"
1
"
Thread
Type
Metric
UN
UNC
UNF
UNJC
UNJF
UNS
Thread
Spacing
Coarse
Fine
Extra
Fine
Thread
Fit
Metric
Class
6H
Unified
Standard
Class
2B
Unified
Standard
Class
3B
Fastener
Strength
Grade/Class
ASTM
Grade
C
ISO
Class
6
ISO
Class
8
ISO
Class
10
SAE
Grade
2
SAE
Grade
5
SAE
Grade
8
SAE
Grade
9
RoHS
Compliance
RoHS
3
(2015/863/EU)
Compliant
RoHS
3
(2015/863/EU)
Compliant
with
Exemptions
Not
Compliant
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
Not
Compliant
Thread
Pitch
0
.
4
m
m
0
.
4
5
m
m
0
.
5
m
m
0
.
7
m
m
0
.
8
m
m
1
m
m
1
.
2
5
m
m
1
.
5
m
m
1
.
7
5
m
m
2
m
m
2
.
5
m
m
3
m
m
3
.
5
m
m
4
m
m
4
.
5
m
m
Insert
Maximum
Temperature
220°
F
240°
F
245°
F
250°
F
Not
Rated
DFARS
Compliance
Specialty
Metals
Compliant
(252.225
-
7009)
Specialty
Metals
COTS
-
Exempt
Not
Specialty
Metals
Compliant
Specifications
Met
DIN
Standard
ISO
Standard
NAS
Military
Specifications
Met
M
S
1
7
8
3
0
-
0
1
0
C
M
S
1
7
8
3
0
-
0
2
C
M
S
1
7
8
3
0
-
4
C
M
S
1
7
8
3
0
-
5
C
M
S
1
7
8
3
0
-
6
C
M
S
1
7
8
3
0
-
6
F
M
S
1
7
8
3
0
-
7
F
M
S
2
1
0
4
4
-
N
0
4
M
S
2
1
0
4
4
-
N
0
6
M
S
2
1
0
4
4
-
N
0
8
M
S
2
1
0
4
4
-
N
1
0
M
S
2
1
0
4
4
-
N
3
M
S
2
1
0
4
4
-
N
4
M
S
2
1
0
4
4
-
N
5
M
S
2
1
0
4
4
-
N
6
Washer
Material
Stainless
Steel
Steel
Washer
OD
0
.
2
8
1
"
0
.
3
2
8
"
0
.
3
4
4
"
0
.
3
7
5
"
0
.
4
0
6
"
0
.
5
"
0
.
5
7
8
"
0
.
5
9
2
"
0
.
6
5
6
"
0
.
8
7
1
"
0
.
8
9
1
"
6
.
5
m
m
7
.
1
m
m
8
m
m
8
.
2
m
m
Washer
Type
External
-
Tooth
Lock
Spring
Lock
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1,390 Products
Locknuts
Nylon-Insert Locking
Nylon-Insert Locknuts
Versatile and economical—the most commonly used locknuts
468 products
Thin-Profile Nylon-Insert Locknuts
About half the height of standard nuts to fit in spaces with low clearance
164 products
Heavy-Profile Nylon-Insert Locknuts
About 10% wider and taller than standard nuts to handle heavier loads
31 products
High-Profile Nylon-Insert Locknuts
Larger gripping area keeps wrenches from slipping off as you tighten
49 products
Thin-Heavy-Profile Nylon-Insert Locknuts
Fit in low-clearance spaces and handle heavier loads than standard nuts
33 products
Mil. Spec. Nylon-Insert Locknuts
Meet strict U.S. military standards for material and construction
21 products
Mil. Spec. Thin-Profile Nylon-Insert Locknuts
Meet U.S. military standards and are half the height of standard nuts to fit in low-clearance spaces
17 products
Nylon-Insert Locknut Assortments
A range of sizes to fasten a variety of parts
2 products
Distorted-Thread Locking
Top-Lock Distorted-Thread Locknuts
Irregularly shaped threads at the top grip screws tighter than a nylon insert
286 products
Lock Washer
Locknuts with External-Tooth Lock Washer
Twist into place by hand to save on assembly time
56 products
Narrow-Profile Locknuts with External-Tooth Lock Washer
20% narrower than other nuts to fit in cramped spaces
3 products
Locknuts with Spring-Lock Washer
Grip more tightly than external-tooth washers to better resist vibration
21 products
Assortments of Locknuts with External-Tooth Lock Washer
A range of sizes to fasten a variety of parts
2 products
Flex-Top Locking
Flex-Top Locknuts for Heavy Vibration
Stronger hold than nylon-insert and distorted-thread locknuts
85 products
Thin-Profile Flex-Top Locknuts for Heavy Vibration
About two-thirds the height of standard nuts to fit in spaces with low clearance
58 products
Heavy-Profile Flex-Top Locknuts for Heavy Vibration
About 10% wider and taller than standard nuts to handle heavier loads
13 products
Thin-Heavy-Profile Flex-Top Locknuts for Heavy Vibration
Fit in low-clearance spaces and handle heavier loads than standard nuts
9 products
Mil. Spec. Flex-Top Locknuts for Heavy Vibration
Meet strict U.S. military standards for material and construction
18 products
Steel-Insert Locking
Steel-Insert Locknuts for Extreme Vibration
The most vibration-resistant hold we offer
16 products
Thin-Profile Steel-Insert Locknuts for Extreme Vibration
About two-thirds the height of standard nuts to fit in spaces with low clearance
9 products
Heavy-Profile Steel-Insert Locknuts for Extreme Vibration
About 10% wider and taller than standard nuts to handle heavier loads
19 products
Spring-Stop Locking
Spring-Stop Locknuts
Withstand heavy vibration similar to distorted-thread nuts and are reusable
10 products
The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)