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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.
Mil. Spec. Narrow-Profile Hex Nuts
These nuts are manufactured and tested to strict U.S. military standards for material and construction. They are about 20% narrower to fit in tight spots where standard-profile nuts won't fit. Also known as small-pattern hex nuts.
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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 | |||||||||
| 2-56 | 5/32" | 1/16" | Fed. Spec. FF-N-836, NAS671C2 | Material Certificate | 10 | 91834A101 | 00000 | ||
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 | |||||||||
| 2-56 | 1/4" | 7/64" | MS21083C02, NASM21083 | 250 | 5 | 97231A480 | 000000 | ||
Thin-Profile Nylon-Insert Locknuts
 |
About half the height of standard-profile locknuts, these 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.
Low-Strength Steel
Thread Size | Wd. | Ht. | Insert Max. Temp., ° F | Pkg. Qty. | Pkg. | |||
|---|---|---|---|---|---|---|---|---|
Zinc-Plated Steel | ||||||||
| 2-56 | 1/4" | 7/64" | 220 | 100 | 90633A004 | 000000 | ||
Flanged Knurled-Head Thumb Nuts
 |
The slip-resistant head is easy to grip, while the flange distributes pressure evenly across the mounting surface without the need for a separate washer. These nuts are often used to secure screws in oversized or irregularly shaped holes since the flange covers a larger area than standard nuts.
Brass
Collar | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Dia. | Ht. | Head Dia. | Ht. | Threading | Pkg. Qty. | Pkg. | |||
Brass | ||||||||||
| 2-56 | 3/16" | 1/8" | 1/4" | 1/4" | Fully Threaded | 1 | 92741A102 | 00000 | ||
Knurled-Head Thumb Nuts
 |
Get a good grip on these nuts, even with oily fingers. They have a raised, slip-resistant head, so you can tighten them by hand and make controlled adjustments. Knurled-head nuts have a smaller profile than wing nuts, so they fit in tighter spots.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
