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Tooling Nuts

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These check nuts are made of 303 stainless steel or low carbon steel, soft, with a black oxide finish. They can be used in conjunction with many other components such as knurled head screws, torque thumb screws, hand knob assemblies, toggle show clamp assemblies and many other tooling applications.

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99 results
Product SKUs information
Item Code Price range Availability Thread Size Special Offer Thread Type Type Brand View
$3.35 - $3.35 Request the lead time here
M6x1.00
Machine Coupling Nuts
AMF
$5.18 - $5.18 66 In stock
3/8-16
Check Nut
Reid Select
$5.84 - $5.84 37 In stock
1/2-13
Check Nut
Reid Select
$3.84 - $3.84 172 In stock
5/16-18
Machine Coupling Nuts
Reid Select
$4.95 - $4.95 120 In stock
5/16-18
Check Nut
Reid Select
$12.48 - $12.48 Request the lead time here
1/4-20
Check Nut
Reid Select
$5.41 - $5.41 113 In stock
10-24
Check Nut
Reid Select
$4.81 - $4.81 24 In stock
1/2-13
Machine Coupling Nuts
Reid Select
$6.75 - $6.75 29 In stock
5/8-11
Check Nut
Reid Select
$12.50 - $12.50 156 In stock
10-32
Check Nut
Reid Select
$12.67 - $12.67 91 In stock
1/2-13
Check Nut
Reid Select
$9.06 - $9.06 86 In stock
1-8
Machine Coupling Nuts
Reid Select
$6.76 - $6.76 18 In stock
1/2-13
Fully Threaded
T-Slot Nuts
TE-CO
$9.60 - $9.60 408 In stock
3/8-16
Safety-Stop Thread
T-Slot Nuts
Reid Select
$5.88 - $5.88 80 In stock
M12
Safety-Stop Thread
Chamfered
AMF
$36.19 - $36.19 10 In stock
1-8
Safety-Stop Thread
T-Slot Nuts
TE-CO
$13.10 - $13.10 78 In stock
1/2-13
Safety-Stop Thread
T-Slot Nuts
Reid Select
$5.45 - $5.45 247 In stock
1/2-13
Fully Threaded
T-Slot Nuts
TE-CO
$4.63 - $4.63 112 In stock
M5
Safety-Stop Thread
Chamfered
AMF
$11.45 - $11.45 2 In stock
M16
Safety-Stop Thread
Chamfered
AMF
  • of 5
Machine Coupling Nut; Distance Across Flats (Seed)=11.5 mm, Overall Length=18.0 mm | 0.709 in, Thread Size=M6x1.00

CN-20

Price Range
$3.35 - $3.35

Stock Levels
Request the lead time here
Attributes
  • Thread Size
    M6x1.00
  • Type
    Machine Coupling Nuts
  • Overall Length
    0.709 in
  • Distance Across Flats
    0.453 in
  • Material
    Tempered/Case-Hardened Steel
Check Nut; Base Diameter (Seed)=1.00 in, Overall Height (Seed)=.44 in, Thread Size=3/8-16

KN-1

Price Range
$5.18 - $5.18

Stock Levels
66 In stock
Attributes
  • Thread Size
    3/8-16
  • Type
    Check Nut
  • Base Diameter
    1.00 in
  • Material
    Case-Hardened Steel
  • Outside Diameter
    1.125 in
Check Nut; Base Diameter (Seed)=0.750 in, Overall Height (Seed)=0.375 in, Thread Size=1/2-13, V-5

V-5

Price Range
$5.84 - $5.84

Stock Levels
37 In stock
Attributes
  • Thread Size
    1/2-13
  • Type
    Check Nut
  • Material
    Soft Low-Carbon Steel
  • Finish
    Black Oxide
Machine Coupling Nut; Distance Across Flats (Seed)=0.563 in, Overall Length=22.2 mm | .875 in, Thread Size=5/16-18

CN-1

Price Range
$3.84 - $3.84

Stock Levels
172 In stock
Attributes
  • Thread Size
    5/16-18
  • Type
    Machine Coupling Nuts
  • Overall Length
    .875 in
  • Distance Across Flats
    0.563 in
  • Material
    Cold-Finished/Case-Hardened Steel
Check Nut; Base Diameter (Seed)=0.500 in, Overall Height (Seed)=0.313 in, Thread Size=5/16-18, V-3

V-3

Price Range
$4.95 - $4.95

Stock Levels
120 In stock
Attributes
  • Thread Size
    5/16-18
  • Type
    Check Nut
  • Material
    Soft Low-Carbon Steel
  • Finish
    Black Oxide
Check Nut; Base Diameter (Seed)=0.500 in, Overall Height (Seed)=0.219 in, Thread Size=1/4-20, VS-2

VS-2

Price Range
$12.48 - $12.48

Stock Levels
Request the lead time here
Attributes
  • Thread Size
    1/4-20
  • Type
    Check Nut
  • Material
    303 Stainless Steel
Check Nut; Base Diameter (Seed)=0.500 in, Overall Height (Seed)=.219 in, Thread Size=10-24

V-0

Price Range
$5.41 - $5.41

Stock Levels
113 In stock
Attributes
  • Thread Size
    10-24
  • Type
    Check Nut
  • Base Diameter
    0.500 in
  • Head Height
    .156 in
  • Material
    Soft Low-Carbon Steel
Machine Coupling Nut; Distance Across Flats (Seed)=0.875 in, Overall Length=38.1 mm | 1.50 in, Thread Size=1/2-13

CN-3

Price Range
$4.81 - $4.81

Stock Levels
24 In stock
Attributes
  • Thread Size
    1/2-13
  • Type
    Machine Coupling Nuts
  • Overall Length
    1.50 in
  • Distance Across Flats
    0.875 in
  • Material
    Cold-Finished/Case-Hardened Steel
Check Nut; Base Diameter (Seed)=1.00 in, Overall Height (Seed)=.44 in, Thread Size=5/8-11

KN-3

Price Range
$6.75 - $6.75

Stock Levels
29 In stock
Attributes
  • Thread Size
    5/8-11
  • Type
    Check Nut
  • Base Diameter
    1.00 in
  • Material
    Case-Hardened Steel
  • Outside Diameter
    1.375 in
Check Nut; Base Diameter (Seed)=0.500 in, Overall Height (Seed)=0.219 in, Thread Size=10-32, VS-1

VS-1

Price Range
$12.50 - $12.50

Stock Levels
156 In stock
Attributes
  • Thread Size
    10-32
  • Type
    Check Nut
  • Material
    303 Stainless Steel
Check Nut; Base Diameter (Seed)=0.750 in, Overall Height (Seed)=0.375 in, Thread Size=1/2-13, VS-5

VS-5

Price Range
$12.67 - $12.67

Stock Levels
91 In stock
Attributes
  • Thread Size
    1/2-13
  • Type
    Check Nut
  • Material
    303 Stainless Steel
Machine Coupling Nut; Distance Across Flats (Seed)=1.500 in, Overall Length=63.5 mm | 2.500 in, Thread Size=1-8, CN-7

CN-7

Price Range
$9.06 - $9.06

Stock Levels
86 In stock
Attributes
  • Thread Size
    1-8
  • Type
    Machine Coupling Nuts
  • Material
    Cold-Finished/Case-Hardened Steel
  • Finish
    Black Oxide
T-Slot Nut; Overall Height=19.1 mm | 0.7500 in, Overall Length=28.6 mm | 1.1250 in, Overall Width=28.6 mm | 1.1250 in, Thread Size=1/2-13, 41480T

TN-16

Price Range
$6.76 - $6.76

Stock Levels
18 In stock
Attributes
  • Thread Size
    1/2-13
  • Type
    T-Slot Nuts
  • Thread Type
    Fully Threaded
  • Material
    Cold-Finished/Case-Hardened Steel
  • Finish
    Black Oxide
T-Slot Nut; Overall Height=12.7 mm | 0.5000 in, Overall Length=25.4 mm | 1.0000 in, Overall Width=19.1 mm | 0.7500 in, Thread Size=3/8-16, TN-210

TN-210

Price Range
$9.60 - $9.60

Stock Levels
408 In stock
Attributes
  • Thread Size
    3/8-16
  • Type
    T-Slot Nuts
  • Thread Type
    Safety-Stop Thread
  • Material
    304 Stainless Steel
T-Slot Nut; Overall Height=16.0 mm | 0.63 in, Overall Length=44.0 mm | 1.732 in, Overall Width=22.0 mm | 0.866 in, Thread Size=M12, 84681

TN-58

Price Range
$5.88 - $5.88

Stock Levels
80 In stock
Attributes
  • Thread Size
    M12
  • Type
    Chamfered
  • Thread Type
    Safety-Stop Thread
  • Material
    Cold-Finished/Case-Hardened Steel
  • Pitch/TPI
    1.8 mm
T-Slot Nut; Overall Height=38.1 mm | 1.5000 in, Overall Length=44.5 mm | 1.7500 in, Overall Width=44.5 mm | 1.7500 in, Thread Size=1-8, 41491

TN-117

Price Range
$36.19 - $36.19

Stock Levels
10 In stock
Attributes
  • Thread Size
    1-8
  • Type
    T-Slot Nuts
  • Thread Type
    Safety-Stop Thread
  • Material
    Cold-Finished/Case-Hardened Steel
  • Finish
    Black Oxide
T-Slot Nut; Overall Height=19.1 mm | 0.7500 in, Overall Length=31.8 mm | 1.2500 in, Overall Width=22.2 mm | 0.8750 in, Thread Size=1/2-13, TN-225

TN-225

Price Range
$13.10 - $13.10

Stock Levels
78 In stock
Attributes
  • Thread Size
    1/2-13
  • Type
    T-Slot Nuts
  • Thread Type
    Safety-Stop Thread
  • Material
    304 Stainless Steel
T-Slot Nut; Overall Height=15.9 mm | 0.6250 in, Overall Length=25.4 mm | 1.0000 in, Overall Width=22.2 mm | 0.8750 in, Thread Size=1/2-13, 41475T

TN-4

Price Range
$5.45 - $5.45

Stock Levels
247 In stock
Attributes
  • Thread Size
    1/2-13
  • Type
    T-Slot Nuts
  • Thread Type
    Fully Threaded
  • Material
    Cold-Finished/Case-Hardened Steel
  • Finish
    Black Oxide
T-Slot Nut; Overall Height=8.0 mm | 0.315 in, Overall Length=10.0 mm | 0.394 in, Overall Width=10.0 mm | 0.394 in, Thread Size=M5, 80002

TN-25

Price Range
$4.63 - $4.63

Stock Levels
112 In stock
Attributes
  • Thread Size
    M5
  • Type
    Chamfered
  • Thread Type
    Safety-Stop Thread
  • Material
    Cold-Finished/Case-Hardened Steel
  • Pitch/TPI
    0.8 mm
T-Slot Nut; Overall Height=28.0 mm | 1.102 in, Overall Length=35.0 mm | 1.378 in, Overall Width=35.0 mm | 1.378 in, Thread Size=M16, 155630

TN-53

Price Range
$11.45 - $11.45

Stock Levels
2 In stock
Attributes
  • Thread Size
    M16
  • Type
    Chamfered
  • Thread Type
    Safety-Stop Thread
  • Material
    Cold-Finished/Case-Hardened Steel
  • Pitch/TPI
    2.0 mm