System of Measurement System of Measurement |
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Thread Size Thread Size | Show |
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Thread Size Thread Size | Hide |
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Hex Nut Profile Hex Nut Profile |
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 | Thin |
Material Material |
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Locking Type Locking Type |
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 | Nylon Insert |
Thread Direction Thread Direction |
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 | Right Hand |
Thread Spacing Thread Spacing |
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Finish Finish |
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Specifications Met Specifications Met |
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Thread Type Thread Type |
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Drive Style Drive Style |
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 | External Hex |
Threading Threading |
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 | Fully Threaded |
 | Partially Threaded |
Color Color |
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 | Black |
About Nuts, Materials, and Finishes
More
Low-Strength Steel Thin Nylon-Insert Locknuts
These locknuts are about half the height of standard nylon-insert locknuts. Use them in light duty low-clearance applications or jam one against a hex nut to hold it in place. The nylon insert grips the bolt to resist loosening without damaging threads. They're reusable, but their holding power lessens with each use.
Zinc-plated steel locknuts resist corrosion in wet environments.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Wd. | Ht. | Insert Max. Temp., °F | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | ||||||
|---|---|---|---|---|---|---|
| 4-40 | 1/4" | 7/64" | 220° | 100 | 000000000 | 00000 |
Mil. Spec. Low-Strength Steel Thin Nylon-Insert Locknuts
Choose these locknuts for their adherence to strict military standards for material and construction. About half the height of standard nylon-insert locknuts, use them in light duty low-clearance applications or jam one against a hex nut to hold it in place. The nylon insert grips the bolt to resist loosening without damaging threads. They're reusable, but their holding power lessens with each use. A cadmium plating provides corrosion resistance in wet environments and adds lubricity so they thread on smoothly.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Wd. | Ht. | Insert Max. Temp., °F | Specifications Met | Pkg. Qty. | Pkg. | |
Cadmium-Plated Steel | |||||||
|---|---|---|---|---|---|---|---|
| 4-40 | 1/4" | 1/8" | 250° | MS21083-N04 | 10 | 000000000 | 000000 |
18-8 Stainless Steel Thin Nylon-Insert Locknuts
These locknuts have good chemical resistance and may be mildly magnetic. They're about half the height of standard nylon-insert locknuts. Use them in low-clearance applications or jam one against a hex nut to hold it in place. The nylon insert grips the bolt to resist loosening without damaging threads. They're reusable, but their holding power lessens with each use.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Wd. | Ht. | Insert Max. Temp., °F | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||
|---|---|---|---|---|---|---|
| 4-40 | 1/4" | 7/64" | 220° | 50 | 000000000 | 00000 |
Mil. Spec. 18-8 Stainless Steel Thin Nylon-Insert Locknuts
Choose these locknuts for their adherence to strict military standards for material and construction. They have good chemical resistance and may be mildly magnetic. About half the height of standard nylon-insert locknuts, use them in low-clearance applications or jam one against a hex nut to hold it in place. The nylon insert grips the bolt to resist loosening without damaging threads. They're reusable, but their holding power lessens with each use.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Wd. | Ht. | Insert Max. Temp., °F | Specifications Met | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||
|---|---|---|---|---|---|---|---|
| 4-40 | 1/4" | 1/8" | 250° | MS21083-C04 | 10 | 000000000 | 00000 |
18-8 Stainless Steel Knurled-Head Thumb Nuts
These thumb nuts have good chemical resistance and may be mildly magnetic. 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 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Dia. | Ht. | Head Dia. | Ht. | Threading | Thread Dp. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||||
| 4-40 | 1/4" | 1/4" | 1/2" | 3/8" | Partially Threaded | 1/4" | 1 | 000000000 | 00000 |
Super-Corrosion-Resistant 316 Stainless
Steel Knurled-Head Thumb Nuts
These thumb nuts have excellent chemical resistance and can be used in saltwater environments. The head is knurled for slip-resistant controlled adjustment and the collar raises the head to make it easy to grip. They may be mildly magnetic.
For technical drawings and 3-D models, click on a part number.
Collar | |||||||
|---|---|---|---|---|---|---|---|
| Thread Size | Dia. | Ht. | Head Dia. | Ht. | Pkg. Qty. | Pkg. | |
316 Stainless Steel | |||||||
| 4-40 | 1/4" | 1/4" | 1/2" | 3/8" | 1 | 000000000 | 00000 |
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 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 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 |
18-8 Stainless Steel Flanged Knurled-Head Thumb Nuts
These thumb nuts have good chemical resistance and may be mildly magnetic. The flange distributes the load over a large area and reduces stress where the nut meets the material surface. A knurled head provides a slip-resistant grip for controlled adjustment.
Passivated stainless steel nuts provide added protection against oxidation and corrosion.
For technical drawings and 3-D models, click on a part number.
Collar | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Dia. | Ht. | Head Dia. | Ht. | Threading | Thread Dp. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||||
| 4-40 | 1/4" | 1/8" | 5/16" | 1/4" | Fully Threaded | __ | 1 | 000000000 | 00000 |
| 4-40 | 1/4" | 1/8" | 5/16" | 5/16" | Partially Threaded | 7/32" | 1 | 000000000 | 0000 |
Black-Oxide 18-8 Stainless Steel | |||||||||
| 4-40 | 1/4" | 1/8" | 5/16" | 1/4" | Fully Threaded | __ | 1 | 000000000 | 0000 |
Passivated 18-8 Stainless Steel | |||||||||
| 4-40 | 1/4" | 1/8" | 5/16" | 1/4" | Fully Threaded | __ | 1 | 000000000 | 0000 |
Super-Corrosion-Resistant 316 Stainless
Steel Flanged Knurled-Head Thumb Nuts
These thumb nuts have excellent chemical resistance and can be used in saltwater environments. The flange distributes the load over a large area and reduces stress where the nut meets the material surface. A knurled head provides a slip-resistant grip for controlled adjustment. They may be mildly magnetic.
For technical drawings and 3-D models, click on a part number.
Collar | |||||||
|---|---|---|---|---|---|---|---|
| Thread Size | Dia. | Ht. | Head Dia. | Ht. | Pkg. Qty. | Pkg. | |
316 Stainless Steel | |||||||
| 4-40 | 1/4" | 1/8" | 5/16" | 1/4" | 1 | 000000000 | 00000 |
Brass Flanged Knurled-Head Thumb Nuts
These thumb nuts are corrosion resistant in wet environments, electrically conductive, and nonmagnetic. The flange distributes the load over a large area and reduces stress where the nut meets the material surface. A knurled head provides a slip-resistant grip for controlled adjustment.
Zinc-plated brass nuts are more corrosion resistant than plain brass nuts.
For technical drawings and 3-D models, click on a part number.
Hex-Head Thumb Nuts
Tighten these thumb nuts with a wrench for more torque while fastening. They have a flange that distributes the load over a large area and reduces stress where the nut meets the material surface. Made from 18-8 stainless steel, they have good chemical resistance and may be mildly magnetic.
For technical drawings and 3-D models, click on a part number.
Collar | |||||||
|---|---|---|---|---|---|---|---|
| Thread Size | Dia. | Ht. | Wd. | Ht. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||
| 4-40 | 1/4" | 1/8" | 5/16" | 1/4" | 1 | 000000000 | 00000 |