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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
$6.75 - $6.75 28 In stock
5/8-11
Check Nut
Reid Select
$4.95 - $4.95 20 In stock
5/16-18
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
$4.81 - $4.81 218 In stock
1/2-13
Machine Coupling Nuts
Reid Select
$9.06 - $9.06 86 In stock
1-8
Machine Coupling Nuts
Reid Select
$6.86 - $6.86 28 In stock
5/8-11
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
$5.23 - $5.23 115 In stock
3/8-16
Fully Threaded
T-Slot Nuts
TE-CO
$12.52 - $12.52 6 In stock
3/4-10
Fully Threaded
T-Slot Nuts
TE-CO
$13.10 - $13.10 78 In stock
1/2-13
Safety-Stop Thread
T-Slot Nuts
Reid Select
$10.30 - $10.30 93 In stock
3/8-16
Safety-Stop Thread
T-Slot Nuts
Reid Select
$5.23 - $5.23 67 In stock
5/16-18
Fully Threaded
T-Slot Nuts
TE-CO
$25.49 - $25.49 Request the lead time here
3/4-10
Safety-Stop Thread
Rotary
Valtra
$4.06 - $4.06 314 In stock
M8
Safety-Stop Thread
Chamfered
AMF
$5.23 - $5.23 40 In stock
M12
Safety-Stop Thread
Chamfered
AMF
$8.32 - $8.32 77 In stock
M8
Safety-Stop Thread
Chamfered
AMF
$12.20 - $12.20 10 In stock
3/4-10
Safety-Stop Thread
T-Slot Nuts
TE-CO
$15.14 - $15.14 10 In stock
7/8-9
Fully Threaded
T-Slot Nuts
TE-CO
$36.19 - $36.19 10 In stock
1-8
Fully Threaded
T-Slot Nuts
TE-CO
  • of 5
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
28 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)=0.313 in, Thread Size=5/16-18, V-3

V-3

Price Range
$4.95 - $4.95

Stock Levels
20 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=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
  • Manufacturer Part Number
    VS-1
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
  • Manufacturer Part Number
    VS-5
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
218 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
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
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=5/8-11, 41481T

TN-6

Price Range
$6.86 - $6.86

Stock Levels
28 In stock
Attributes
  • Thread Size
    5/8-11
  • 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=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, 41472T

TN-2

Price Range
$5.23 - $5.23

Stock Levels
115 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=25.4 mm | 1.0000 in, Overall Length=38.1 mm | 1.5000 in, Overall Width=38.1 mm | 1.5000 in, Thread Size=3/4-10, 41485T

TN-9

Price Range
$12.52 - $12.52

Stock Levels
6 In stock
Attributes
  • Thread Size
    3/4-10
  • 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=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
  • Manufacturer Part Number
    TN-20SS
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=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=25.4 mm | 1.0000 in, Overall Length=41.3 mm | 1.6250 in, Overall Width=25.3 mm | 0.9950 in, Thread Size=3/4-10, 825777

RTN-175

Price Range
$25.49 - $25.49

Stock Levels
Request the lead time here
Attributes
  • Thread Size
    3/4-10
  • Type
    Rotary
  • Thread Type
    Safety-Stop Thread
  • Material
    Cold-Finished/Case-Hardened Steel
  • Finish
    Black Oxide
T-Slot Nut; Overall Height=12.0 mm | 0.472 in, Overall Length=15.0 mm | 0.591 in, Overall Width=15.0 mm | 0.591 in, Thread Size=M8, 80028

TN-27

Price Range
$4.06 - $4.06

Stock Levels
314 In stock
Attributes
  • Thread Size
    M8
  • Type
    Chamfered
  • Thread Type
    Safety-Stop Thread
  • Material
    Cold-Finished/Case-Hardened Steel
  • Pitch/TPI
    1.2 mm
T-Slot Nut; Overall Height=18.0 mm | 0.709 in, Overall Length=25.0 mm | 0.984 in, Overall Width=25.0 mm | 0.984 in, Thread Size=M12, 80168

TN-50

Price Range
$5.23 - $5.23

Stock Levels
40 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=12.0 mm | 0.472 in, Overall Length=30.0 mm | 1.181 in, Overall Width=15.0 mm | 0.591 in, Thread Size=M8, 84665

TN-56

Price Range
$8.32 - $8.32

Stock Levels
77 In stock
Attributes
  • Thread Size
    M8
  • Type
    Chamfered
  • Thread Type
    Safety-Stop Thread
  • Material
    Cold-Finished/Case-Hardened Steel
  • Pitch/TPI
    1.2 mm
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=3/4-10, 41484

TN-108

Price Range
$12.20 - $12.20

Stock Levels
10 In stock
Attributes
  • Thread Size
    3/4-10
  • Type
    T-Slot Nuts
  • Thread Type
    Safety-Stop Thread
  • Material
    Cold-Finished/Case-Hardened Steel
  • Finish
    Black Oxide
T-Slot Nut; Overall Height=38.1 mm | 1.5000 in, Overall Length=38.1 mm | 1.5000 in, Overall Width=44.5 mm | 1.7500 in, Thread Size=7/8-9, 41488T

TN-13

Price Range
$15.14 - $15.14

Stock Levels
10 In stock
Attributes
  • Thread Size
    7/8-9
  • Type
    T-Slot Nuts
  • Thread Type
    Fully Threaded
  • Material
    Cold-Finished/Case-Hardened Steel
  • Finish
    Black Oxide
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, 41491T

TN-17

Price Range
$36.19 - $36.19

Stock Levels
10 In stock
Attributes
  • Thread Size
    1-8
  • Type
    T-Slot Nuts
  • Thread Type
    Fully Threaded
  • Material
    Cold-Finished/Case-Hardened Steel
  • Finish
    Black Oxide