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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
$10.30 - $10.30 93 In stock
3/8-16
Safety-Stop Thread
T-Slot Nuts
Reid Select
$5.77 - $5.77 512 In stock
1/4-20
Fully Threaded
T-Slot Nuts
TE-CO
$10.89 - $10.89 10 In stock
5/8-11
Safety-Stop Thread
T-Slot Nuts
TE-CO
$5.23 - $5.23 67 In stock
5/16-18
Fully Threaded
T-Slot Nuts
TE-CO
$6.76 - $6.76 11 In stock
1/2-13
Safety-Stop Thread
T-Slot Nuts
TE-CO
$5.55 - $5.55 30 In stock
3/8-16
Fully Threaded
T-Slot Nuts
TE-CO
$3.92 - $3.92 16 In stock
5/16-18
Safety-Stop Thread
T-Slot Nuts
TE-CO
$5.45 - $5.45 247 In stock
1/2-13
Fully Threaded
T-Slot Nuts
TE-CO
$3.66 - $3.66 10 In stock
5/8-11
Check Nut
Reid Select
$4.57 - $4.57 81 In stock
3/8-16
Machine Coupling Nuts
Reid Select
$9.06 - $9.06 86 In stock
1-8
Machine Coupling Nuts
Reid Select
$8.86 - $8.86 95 In stock
7/8-9
Machine Coupling Nuts
Reid Select
$9.67 - $9.67 Request the lead time here
5/16-18
Check Nut
Reid Select
$5.18 - $5.18 55 In stock
3/8-16
Check Nut
Reid Select
$3.84 - $3.84 172 In stock
5/16-18
Machine Coupling Nuts
Reid Select
$5.41 - $5.41 113 In stock
10-24
Check Nut
Reid Select
$12.48 - $12.48 Request the lead time here
1/4-20
Check Nut
Reid Select
$4.46 - $4.46 27 In stock
5/8-11
Machine Coupling Nuts
Reid Select
$4.95 - $4.95 120 In stock
5/16-18
Check Nut
Reid Select
$4.02 - $4.02 186 In stock
1/4-20
Check Nut
Reid Select
  • of 5
T-Slot Nut; Overall Height=15.9 mm | 0.6250 in, Overall Length=31.8 mm | 1.2500 in, Overall Width=22.2 mm | 0.8750 in, Thread Size=3/8-16, TN-220

TN-220

Price Range
$10.30 - $10.30

Stock Levels
93 In stock
Attributes
  • Thread Size
    3/8-16
  • Type
    T-Slot Nuts
  • Thread Type
    Safety-Stop Thread
  • Material
    304 Stainless Steel
  • Manufacturer Part Number
    TN-15SS
T-Slot Nut; Overall Height=9.5 mm | 0.3750 in, Overall Length=22.2 mm | 0.8750 in, Overall Width=15.9 mm | 0.6250 in, Thread Size=1/4-20, 41470T

TN-0

Price Range
$5.77 - $5.77

Stock Levels
512 In stock
Attributes
  • Thread Size
    1/4-20
  • Type
    T-Slot Nuts
  • Thread Type
    Fully Threaded
  • Material
    Cold-Finished/Case-Hardened Steel
  • Finish
    Black Oxide
T-Slot Nut; Overall Height=25.4 mm | 1.0000 in, Overall Length=38.1 mm | 1.5000 in, Overall Width=34.9 mm | 1.3750 in, Thread Size=5/8-11, 41483

TN-114

Price Range
$10.89 - $10.89

Stock Levels
10 In stock
Attributes
  • Thread Size
    5/8-11
  • Type
    T-Slot Nuts
  • Thread Type
    Safety-Stop Thread
  • 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=5/16-18, 41471T

TN-18

Price Range
$5.23 - $5.23

Stock Levels
67 In stock
Attributes
  • Thread Size
    5/16-18
  • Type
    T-Slot Nuts
  • Thread Type
    Fully Threaded
  • 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, 41480

TN-116

Price Range
$6.76 - $6.76

Stock Levels
11 In stock
Attributes
  • Thread Size
    1/2-13
  • Type
    T-Slot Nuts
  • Thread Type
    Safety-Stop Thread
  • Material
    Cold-Finished/Case-Hardened Steel
  • Finish
    Black Oxide
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=3/8-16, 41474T

TN-19

Price Range
$5.55 - $5.55

Stock Levels
30 In stock
Attributes
  • Thread Size
    3/8-16
  • Type
    T-Slot Nuts
  • Thread Type
    Fully Threaded
  • Material
    Cold-Finished/Case-Hardened Steel
  • Finish
    Black Oxide
T-Slot Nut; Overall Height=9.5 mm | 0.3750 in, Overall Length=22.2 mm | 0.8750 in, Overall Width=15.9 mm | 0.6250 in, Thread Size=5/16-18, 41403

TN-101

Price Range
$3.92 - $3.92

Stock Levels
16 In stock
Attributes
  • Thread Size
    5/16-18
  • Type
    T-Slot Nuts
  • Thread Type
    Safety-Stop Thread
  • Material
    Cold-Finished/Case-Hardened Steel
  • Finish
    Black Oxide
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
Check Nut; Base Diameter (Seed)=0.750 in, Overall Height (Seed)=0.375 in, Thread Size=5/8-11, V-6

V-6

Price Range
$3.66 - $3.66

Stock Levels
10 In stock
Attributes
  • Thread Size
    5/8-11
  • Type
    Check Nut
  • Material
    Soft Low-Carbon Steel
  • Finish
    Black Oxide
  • Manufacturer Part Number
    T108CN
Machine Coupling Nut; Distance Across Flats (Seed)=1.063 in, Overall Length=17.5 mm | .688 in, Thread Size=3/8-16

CN-2

Price Range
$4.57 - $4.57

Stock Levels
81 In stock
Attributes
  • Thread Size
    3/8-16
  • Type
    Machine Coupling Nuts
  • Overall Length
    .688 in
  • Distance Across Flats
    1.063 in
  • Material
    Cold-Finished/Case-Hardened 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
  • Manufacturer Part Number
    HN-7
Machine Coupling Nut; Distance Across Flats (Seed)=1.375 in, Overall Length=34.9 mm | 1.375 in, Thread Size=7/8-9

CN-6

Price Range
$8.86 - $8.86

Stock Levels
95 In stock
Attributes
  • Thread Size
    7/8-9
  • Type
    Machine Coupling Nuts
  • Overall Length
    1.375 in
  • Distance Across Flats
    1.375 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, VS-3

VS-3

Price Range
$9.67 - $9.67

Stock Levels
Request the lead time here
Attributes
  • Thread Size
    5/16-18
  • Type
    Check Nut
  • Material
    303 Stainless Steel
  • Manufacturer Part Number
    VS-3
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
55 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
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)=.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
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
  • Manufacturer Part Number
    VS-2
Machine Coupling Nut; Distance Across Flats (Seed)=1.063 in, Overall Length=27 mm | 1.062 in, Thread Size=5/8-11

CN-4

Price Range
$4.46 - $4.46

Stock Levels
27 In stock
Attributes
  • Thread Size
    5/8-11
  • Type
    Machine Coupling Nuts
  • Overall Length
    1.062 in
  • Distance Across Flats
    1.063 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
  • Manufacturer Part Number
    T103ACN BULK
Check Nut; Base Diameter (Seed)=0.500 in, Overall Height (Seed)=0.219 in, Thread Size=1/4-20, V-2

V-2

Price Range
$4.02 - $4.02

Stock Levels
186 In stock
Attributes
  • Thread Size
    1/4-20
  • Type
    Check Nut
  • Material
    Soft Low-Carbon Steel
  • Finish
    Black Oxide
  • Manufacturer Part Number
    V-2