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About Hex Nuts
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Choose a hex nut with the right profile, material, and strength for your application.
Thin-Profile Hex Nuts
Mil. Spec. Thin-Profile Hex Nuts
These nuts are manufactured and tested to strict U.S. military standards for material and construction. About half the height of standard-profile nuts, they fit in spaces with low clearance. You can also use them as jam nuts by threading them against another hex nut to hold it in place.
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Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
Corrosion-Resistant Stainless Steel
 |
18-8 Stainless Steel—The choice for wet and outdoor environments, these nuts resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
Thread Size | Wd. | Ht. | Mil. Spec. | Certificate Type | Pkg. Qty. | Pkg. | |||
|---|---|---|---|---|---|---|---|---|---|
18-8 Stainless Steel | |||||||||
| 1/2"-20 | 3/4" | 5/16" | Fed. Spec. FF-N-836, MS35691-39 | Material Certificate | 1 | 92101A980 | 00000 | ||
Left-Hand-Thread Thin-Profile Hex Nuts
 |
Corrosion-Resistant Stainless Steel
Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |||
|---|---|---|---|---|---|---|---|
18-8 Stainless Steel | |||||||
| 1/2"-20 | 3/4" | 5/16" | 5 | 94450A280 | 000000 | ||
Mil. Spec. Thin-Profile Nylon-Insert Locknuts
 |
These locknuts are manufactured and tested to strict U.S. military standards for material and construction. They are about half the height of standard-profile locknuts to fit in spaces with low clearance. You can also use them as jam nuts by threading them against a hex nut to hold it in place. The nylon insert grips the screw to prevent loosening from moderate vibration without damaging threads. However, the insert may become brittle if exposed to high temperatures. These locknuts are reusable a handful of times, but the holding power decreases with each use.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
Corrosion-Resistant Stainless Steel
Thread Size | Wd. | Ht. | Mil. Spec. | Insert Max. Temp., ° F | Pkg. Qty. | Pkg. | |||
|---|---|---|---|---|---|---|---|---|---|
18-8 Stainless Steel | |||||||||
| 1/2"-20 | 3/4" | 5/16" | MS21083C8, NASM21083 | 250 | 1 | 97231A490 | 000000 | ||
Thin-Profile Nylon-Insert Locknuts
Inch-to-Inch Female Hex Thread Adapters
 |  |
Connect two differently sized male-threaded parts, such as threaded rods, and tighten with a standard wrench. The threads on these adapters have various sizes and spacing, so you can increase or decrease thread size or adapt from coarse to fine threading. You can also use them to change the gender of a connection from male to female. Small adapters can work as threaded standoffs, which position and separate circuit boards and other components in assemblies.
18-8 Stainless Steel—18-8 stainless steel adapters withstand wet environments but will corrode when exposed to salt water and other chloride solutions.
ASTM A582—Adapters that meet ASTM specifications are made from or plated with materials that adhere to specific standards for chemical and physical properties, such as hardness.
Thread Lg. | Thread Fit | Hex | Each | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Thread Size (A) | Thread Size (B) | (A) | (B) | (A) | (B) | Size | Length | Specs. Met | Tensile Strength, psi | Hardness | Certificate Form | Certificate Type | 1-9 | 10-Up | |||
18-8 Stainless Steel | |||||||||||||||||
| 5/16"-18 | 1/2"-20 | 5/16" | 1/2" | Unified Standard Class 2B | Unified Standard Class 2B | 5/8" | 1 1/4" | ASTM A582 | 85,000 | Rockwell B80 | — | — | 91072A150 | 00000 | 00000 | ||
| 5/16"-24 | 1/2"-20 | 5/16" | 1/2" | Unified Standard Class 2B | Unified Standard Class 2B | 5/8" | 1 1/4" | ASTM A582 | 85,000 | Rockwell B80 | — | — | 91072A157 | 0000 | 0000 | ||
| 5/16"-32 | 1/2"-20 | 5/16" | 1/2" | Unified Standard Class 2B | Unified Standard Class 2B | 5/8" | 1 1/4" | ASTM A582 | 85,000 | Rockwell B80 | Digital | Material Certificate with Traceable Lot Number | 91072A163 | 00000 | 00000 | ||
Inch-to-Inch Male Hex Thread Adapters
 |  |
Need to join two female-threaded parts, such as coupling nuts, with dissimilar inch thread sizes? Attach them to these adapters and tighten the exterior hex nut for a secure connection. You can also use these adapters to change the gender of a mating part from female to male, increase or decrease the thread size, or convert the threads from fine to coarse (and vice versa). The smaller adapters act as threaded standoffs, positioning and separating circuit boards and other components in assemblies.
18-8 Stainless Steel—18-8 stainless steel adapters resist corrosion caused by water. They're good for wet and damp environments but will corrode when exposed to salt water and other chloride solutions.
ASTM A582—Adapters that meet ASTM specifications are made from or plated with materials that adhere to specific standards for chemical and physical properties, such as hardness.
Thread Lg. | Thread Fit | Hex | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Thread Size (A) | Thread Size (B) | (A) | (B) | (A) | (B) | Size | Length | Specs. Met | Tensile Strength, psi | Hardness | Certificate Type | Each | |||
18-8 Stainless Steel | |||||||||||||||
| 5/16"-18 | 1/2"-20 | 5/8" | 3/4" | Unified Standard Class 2A | Unified Standard Class 2A | 3/4" | 3/8" | ASTM A582 | 85,000 | Rockwell B80 | — | 95316A709 | 000000 | ||
| 5/16"-24 | 1/2"-20 | 5/8" | 3/4" | Unified Standard Class 2A | Unified Standard Class 2A | 3/4" | 3/8" | ASTM A582 | 85,000 | Rockwell B80 | — | 95316A783 | 00000 | ||
| 5/16"-32 | 1/2"-20 | 5/8" | 3/4" | Unified Standard Class 2A | Unified Standard Class 2A | 3/4" | 3/8" | ASTM A582 | 85,000 | Rockwell B80 | Material Certificate with Traceable Lot Number | 95316A805 | 00000 | ||
Inch-to-Inch Male-Female Hex Thread Adapters
 |  |
Change thread sizes or types, such as fine to coarse threads, on parts without changing gender. These adapters can also be used as standoffs to position components in assemblies and to create space between parts. They have an external hex, so you can tighten them with a wrench.
18-8 Stainless Steel—18-8 stainless steel adapters resist corrosion in wet environments but will corrode when exposed to salt water and chemicals. They may be mildly magnetic.
ASTM A582—Adapters that meet ASTM specifications are made from or plated with materials that adhere to specific standards for chemical and physical properties, such as hardness.
Thread Lg. | Gender | Thread Fit | Hex | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Thread Size (A) | Thread Size (B) | (A) | (B) | (A) | (B) | (A) | (B) | Size | Length | Specs. Met | Tensile Strength, psi | Hardness | Each | |||
18-8 Stainless Steel | ||||||||||||||||
| 5/16"-18 | 1/2"-20 | 5/8" | 11/16" | Male | Female | Unified Standard Class 2A | Unified Standard Class 2B | 3/4" | 1 1/2" | ASTM A582 | 85,000 | Rockwell B80 | 92499A165 | 000000 | ||
| 5/16"-24 | 1/2"-20 | 5/8" | 11/16" | Male | Female | Unified Standard Class 2A | Unified Standard Class 2B | 3/4" | 1 1/2" | ASTM A582 | 85,000 | Rockwell B80 | 92499A178 | 00000 | ||
| 5/16"-32 | 1/2"-20 | 5/8" | 11/16" | Male | Female | Unified Standard Class 2A | Unified Standard Class 2B | 3/4" | 1 1/2" | ASTM A582 | 85,000 | Rockwell B80 | 92499A192 | 00000 | ||
| 1/2"-20 | 5/16"-18 | 7/8" | 15/32" | Male | Female | Unified Standard Class 2A | Unified Standard Class 2B | 3/4" | 1 1/2" | ASTM A582 | 85,000 | Rockwell B80 | 92499A237 | 00000 | ||
| 1/2"-20 | 5/16"-24 | 7/8" | 15/32" | Male | Female | Unified Standard Class 2A | Unified Standard Class 2B | 3/4" | 1 1/2" | ASTM A582 | 85,000 | Rockwell B80 | 92499A238 | 00000 | ||
| 1/2"-20 | 5/16"-32 | 7/8" | 15/32" | Male | Female | Unified Standard Class 2A | Unified Standard Class 2B | 3/4" | 1 1/2" | ASTM A582 | 85,000 | Rockwell B80 | 92499A239 | 00000 | ||
