About Nuts, Materials, and Finishes
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18-8 Stainless Steel Hex Nuts

These nuts have good chemical resistance and may be mildly magnetic.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||
---|---|---|---|---|---|
1/4"-32 | 7/16" | 7/32" | 1 | 000000000 | 00000 |
5/16"-32 | 1/2" | 17/64" | 1 | 000000000 | 0000 |
3/8"-32 | 9/16" | 21/64" | 1 | 000000000 | 0000 |
7/16"-28 | 11/16" | 3/8" | 1 | 000000000 | 0000 |
1/2"-28 | 3/4" | 7/16" | 1 | 000000000 | 00000 |
5/8"-24 | 15/16" | 35/64" | 1 | 000000000 | 00000 |
11/16"-24 | 1" | 27/64" | 1 | 000000000 | 00000 |
3/4"-20 | 1 1/8" | 41/64" | 1 | 000000000 | 00000 |
7/8"-20 | 1 5/16" | 3/4" | 1 | 000000000 | 00000 |
Nylon Hex Nuts
Aluminum Hex Nuts

One-third the weight of steel, these aluminum nuts are corrosion resistant in wet environments and nonmagnetic. All meet ASME B18 dimensional standards.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Specifications Met | Pkg. Qty. | Pkg. | |
6061 Aluminum | ||||||
---|---|---|---|---|---|---|
1/4"-32 | 7/16" | 7/32" | ASME B18.2.2 | 5 | 000000000 | 000000 |
5/16"-32 | 1/2" | 17/64" | ASME B18.2.2 | 5 | 000000000 | 00000 |
3/8"-32 | 9/16" | 21/64" | ASME B18.2.2 | 5 | 000000000 | 00000 |
7/16"-28 | 11/16" | 3/8" | ASME B18.2.2 | 1 | 000000000 | 0000 |
1/2"-28 | 3/4" | 7/16" | ASME B18.2.2 | 1 | 000000000 | 0000 |
5/8"-24 | 15/16" | 35/64" | ASME B18.2.2 | 1 | 000000000 | 0000 |
3/4"-20 | 1 1/8" | 41/64" | ASME B18.2.2 | 1 | 000000000 | 0000 |
Left-Hand Threaded Low-Strength Steel Thin Hex Nuts


These nuts tighten when turned to the left; once fastened, they resist loosening from counterclockwise motion. Also known as jam nuts, they are about half the height of standard hex nuts. Use them in low-clearance applications or jam one against another nut to hold it in place. About half the strength of medium-strength steel thin nuts, use them for light duty fastening applications, such as securing access panels.
Black-oxide steel nuts have a dark surface color and are mildly corrosion resistant in dry environments.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Specifications Met | Pkg. Qty. | Pkg. | |
Black-Oxide Steel—Grade 2 | ||||||
---|---|---|---|---|---|---|
7/8"-20 | 1 5/16" | 31/64" | ASTM A108 | 1 | 000000000 | 000000 |
18-8 Stainless Steel Thin Hex Nuts

These nuts have good chemical resistance and may be mildly magnetic. Also known as jam nuts, they are about half the height of standard hex nuts. Use them in low-clearance applications or jam one against another nut to hold it in place.
For technical drawings and 3-D models, click on a part number.
Left-Hand Threaded 18-8 Stainless Steel Thin Hex Nuts

These nuts tighten when turned to the left; once fastened, they resist loosening from counterclockwise motion. They have good chemical resistance and may be mildly magnetic. Also known as jam nuts, they are about half the height of standard hex nuts. Use them in low-clearance applications or jam one against another nut to hold it in place.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Specifications Met | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||
---|---|---|---|---|---|---|
7/8"-20 | 1 5/16" | 31/64" | ANSI/ASME 18.2.2 | 1 | 000000000 | 000000 |
Round Coupling Nuts

With a smooth rounded body for a finished look, use these nuts to connect and extend threaded rods.
Black-oxide steel coupling nuts have mild corrosion resistance.
18-8 stainless steel coupling nuts have good chemical resistance.
For technical drawings and 3-D models, click on a part number.
Steel Hex Panel Nuts

Fasten these panel nuts with a wrench for more torque while tightening than knurled panel nuts. Also known as dress nuts, they're extremely thin for use in tight spaces such as electrical panels.
Zinc-plated steel nuts resist corrosion in wet environments.
Black-oxide steel nuts have a dark surface color.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | |||||
---|---|---|---|---|---|
1/4"-32 | 5/16" | 5/64" | 10 | 000000000 | 000000 |
1/4"-32 | 3/8" | 3/32" | 10 | 000000000 | 0000 |
5/16"-32 | 7/16" | 7/64" | 10 | 000000000 | 00000 |
3/8"-32 | 5/8" | 3/32" | 1 | 000000000 | 0000 |
7/16"-28 | 5/8" | 3/32" | 1 | 000000000 | 0000 |
15/32"-32 | 9/16" | 5/64" | 1 | 000000000 | 0000 |
15/32"-32 | 5/8" | 3/32" | 1 | 000000000 | 0000 |
15/32"-32 | 5/8" | 9/16" | 1 | 000000000 | 0000 |
1/2"-28 | 5/8" | 3/32" | 1 | 000000000 | 0000 |
Black-Oxide Steel | |||||
3/8"-32 | 1/2" | 3/32" | 1 | 000000000 | 0000 |
7/16"-28 | 5/8" | 3/32" | 1 | 000000000 | 0000 |
1/2"-28 | 5/8" | 3/32" | 1 | 000000000 | 0000 |
1/2"-28 | 5/8" | 1/8" | 1 | 000000000 | 0000 |
1/2"-28 | 3/4" | 3/8" | 1 | 000000000 | 00000 |
5/8"-24 | 15/16" | 3/8" | 1 | 000000000 | 00000 |
11/16"-24 | 1" | 27/64" | 1 | 000000000 | 00000 |
3/4"-20 | 1" | 27/64" | 1 | 000000000 | 00000 |
7/8"-20 | 1 5/16" | 31/64" | 1 | 000000000 | 00000 |
Stainless Steel Hex Panel Nuts

All of these stainless steel panel nuts have some chemical resistance. They can be fastened with a wrench for more torque while tightening than knurled panel nuts. Also known as dress nuts, they are extremely thin for use in tight spaces such as electrical panels.
18-8 stainless steel nuts have good chemical resistance. They may be mildly magnetic. Those with a black-oxide finish have a dark surface color.
316 stainless steel nuts have excellent chemical resistance and can be used in saltwater environments.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||
---|---|---|---|---|---|
1/4"-32 | 5/16" | 5/64" | 10 | 000000000 | 000000 |
1/4"-32 | 3/8" | 3/32" | 10 | 000000000 | 0000 |
5/16"-32 | 3/8" | 3/32" | 1 | 000000000 | 0000 |
5/16"-32 | 7/16" | 7/64" | 10 | 000000000 | 00000 |
5/16"-32 | 1/2" | 17/64" | 1 | 000000000 | 0000 |
3/8"-32 | 1/2" | 3/32" | 1 | 000000000 | 0000 |
3/8"-32 | 9/16" | 21/64" | 1 | 000000000 | 0000 |
3/8"-32 | 5/8" | 3/32" | 1 | 000000000 | 0000 |
7/16"-28 | 5/8" | 3/32" | 1 | 000000000 | 0000 |
7/16"-28 | 11/16" | 3/8" | 1 | 000000000 | 0000 |
15/32"-32 | 9/16" | 5/64" | 1 | 000000000 | 0000 |
15/32"-32 | 9/16" | 3/32" | 1 | 000000000 | 0000 |
15/32"-32 | 5/8" | 3/32" | 1 | 000000000 | 0000 |
15/32"-32 | 5/8" | 9/16" | 1 | 000000000 | 0000 |
1/2"-28 | 5/8" | 3/32" | 1 | 000000000 | 0000 |
1/2"-28 | 5/8" | 1/8" | 1 | 000000000 | 0000 |
11/16"-24 | 1" | 27/64" | 1 | 000000000 | 00000 |
3/4"-20 | 1" | 27/64" | 1 | 000000000 | 00000 |
Black-Oxide 18-8 Stainless Steel | |||||
5/16"-32 | 7/16" | 7/64" | 5 | 000000000 | 00000 |
3/8"-32 | 1/2" | 3/32" | 1 | 000000000 | 0000 |
7/16"-28 | 5/8" | 3/32" | 1 | 000000000 | 0000 |
15/32"-32 | 5/8" | 9/16" | 1 | 000000000 | 0000 |
1/2"-28 | 5/8" | 3/32" | 1 | 000000000 | 0000 |
5/8"-24 | 15/16" | 3/8" | 1 | 000000000 | 0000 |
11/16"-24 | 1" | 27/64" | 1 | 000000000 | 00000 |
3/4"-20 | 1" | 27/64" | 1 | 000000000 | 0000 |
316 Stainless Steel | |||||
1/4"-32 | 5/16" | 5/64" | 1 | 000000000 | 0000 |
5/16"-32 | 3/8" | 3/32" | 1 | 000000000 | 00000 |
3/8"-32 | 1/2" | 3/32" | 1 | 000000000 | 00000 |
7/16"-28 | 5/8" | 3/32" | 1 | 000000000 | 00000 |
15/32"-32 | 5/8" | 9/16" | 1 | 000000000 | 00000 |
1/2"-28 | 5/8" | 1/8" | 1 | 000000000 | 00000 |
5/8"-24 | 15/16" | 3/8" | 1 | 000000000 | 00000 |
11/16"-24 | 1" | 27/64" | 1 | 000000000 | 00000 |
3/4"-20 | 1" | 27/64" | 1 | 000000000 | 00000 |
7/8"-20 | 1 5/16" | 31/64" | 1 | 000000000 | 00000 |
Brass Hex Panel Nuts

These panel nuts are corrosion resistant in wet environments, electrically conductive, and nonmagnetic. They can be fastened with a wrench for more torque while tightening than knurled panel nuts. Also known as dress nuts, they're extremely thin for use in tight spaces such as electrical panels.
Nickel-plated brass panel nuts have excellent resistance to chemicals and salt water.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
Brass | |||||
---|---|---|---|---|---|
1/4"-32 | 5/16" | 5/64" | 10 | 000000000 | 00000 |
1/4"-32 | 3/8" | 3/32" | 10 | 000000000 | 0000 |
5/16"-32 | 7/16" | 7/64" | 10 | 000000000 | 0000 |
3/8"-32 | 5/8" | 3/32" | 1 | 000000000 | 0000 |
7/16"-28 | 5/8" | 3/32" | 1 | 000000000 | 0000 |
15/32"-32 | 5/8" | 3/32" | 1 | 000000000 | 0000 |
Nickel-Plated Brass | |||||
1/4"-32 | 5/16" | 5/64" | 10 | 000000000 | 0000 |
1/4"-32 | 3/8" | 3/32" | 10 | 000000000 | 0000 |
5/16"-32 | 7/16" | 7/64" | 10 | 000000000 | 0000 |
3/8"-32 | 1/2" | 3/32" | 10 | 000000000 | 0000 |
7/16"-28 | 5/8" | 3/32" | 1 | 000000000 | 0000 |
15/32"-32 | 9/16" | 5/64" | 10 | 000000000 | 0000 |
15/32"-32 | 9/16" | 3/32" | 10 | 000000000 | 0000 |
1/2"-28 | 5/8" | 1/8" | 10 | 000000000 | 0000 |
Knurled Panel Nuts

These panel nuts are knurled to provide a secure grip for tightening and loosening by hand. Also known as dress nuts, they're extremely thin for use in tight spaces such as electrical panels. They're zinc plated to resist corrosion in wet environments.
For technical drawings and 3-D models, click on a part number.