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Thumb Nut Profile Thumb Nut Profile |
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![]() | Standard |
Nut Type Nut Type |
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![]() | Thumb |
Thumb Nut Head Shape Thumb Nut Head Shape |
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![]() | Round |
Color Color |
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![]() | Black |
Threading Threading |
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![]() | Fully Threaded |
Maximum Temperature Maximum Temperature |
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Minimum Temperature Minimum Temperature |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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About Nuts, Materials, and Finishes
More
Reinforced Plastic Knurled-Head Thumb Nuts

An aluminum insert with strong threads withstands more torque during installation. They're chemical resistant, nonconductive, and lightweight. The head is knurled for slip-resistant controlled adjustment and the collar raises the head to make it easy to grip.
For technical drawings and 3-D models, click on a part number.
Collar | |||||||||
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Thread Size | Dia. | Ht. | Head Dia. | Ht. | Temp. Range, °F | Color | Pkg. Qty. | Pkg. | |
Acetal Plastic | |||||||||
4-40 | 9/32" | 3/64" | 5/16" | 3/16" | 32° to 180° | Black | 10 | 000000000 | 00000 |
6-32 | 23/64" | 3/64" | 3/8" | 7/32" | 32° to 180° | Black | 10 | 000000000 | 0000 |
8-32 | 25/64" | 3/32" | 1/2" | 17/64" | 32° to 180° | Black | 10 | 000000000 | 0000 |
10-24 | 31/64" | 1/8" | 5/8" | 19/64" | 32° to 180° | Black | 10 | 000000000 | 0000 |
10-32 | 31/64" | 1/8" | 5/8" | 19/64" | 32° to 180° | Black | 10 | 000000000 | 0000 |
1/4"-20 | 35/64" | 1/16" | 1" | 23/64" | 32° to 180° | Black | 10 | 000000000 | 00000 |
1/4"-20 | 35/64" | 3/16" | 3/4" | 23/64" | 32° to 180° | Black | 10 | 000000000 | 0000 |
1/4"-28 | 35/64" | 1/16" | 1" | 23/64" | 32° to 180° | Black | 10 | 000000000 | 00000 |
1/4"-28 | 35/64" | 3/16" | 3/4" | 23/64" | 32° to 180° | Black | 10 | 000000000 | 0000 |
5/16"-18 | 41/64" | 1/8" | 1" | 27/64" | 32° to 180° | Black | 10 | 000000000 | 00000 |
5/16"-24 | 41/64" | 1/8" | 1" | 27/64" | 32° to 180° | Black | 10 | 000000000 | 00000 |
Thread | Collar | |||||||||
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Size | Pitch, mm | Dia., mm | Ht., mm | Head Dia., mm | Ht., mm | Temp. Range, °F | Color | Pkg. Qty. | Pkg. | |
Acetal Plastic | ||||||||||
M3 | 0.5 | 9.1 | 1.2 | 9.6 | 5.6 | 32° to 180° | Black | 10 | 000000000 | 00000 |
M4 | 0.7 | 9.9 | 2.4 | 13 | 6.7 | 32° to 180° | Black | 10 | 000000000 | 0000 |
M5 | 0.8 | 11.5 | 3.2 | 16 | 7.5 | 32° to 180° | Black | 10 | 000000000 | 0000 |
M6 | 1 | 13.6 | 4.8 | 19 | 9.1 | 32° to 180° | Black | 10 | 000000000 | 0000 |
M6 | 1 | 14.3 | 1.6 | 26 | 9.1 | 32° to 180° | Black | 10 | 000000000 | 00000 |
M8 | 1.25 | 16.3 | 3.2 | 26 | 10.7 | 32° to 180° | Black | 10 | 000000000 | 00000 |