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About Nuts, Materials, and Finishes
More
Low-Strength Steel Hex Nuts
About half the strength of medium-strength steel nuts, these nuts are for light duty fastening applications, such as securing access panels.
Hot-dipped galvanized steel nuts have a thick coating for better corrosion resistance than zinc-plated steel nuts. They must be used with other hot-dipped galvanized fasteners.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Wd. | Ht. | Specifications Met | Pkg. Qty. | Pkg. | |
Hot-Dipped Galvanized Steel—Grade 2 | ||||||
|---|---|---|---|---|---|---|
| 1/4"-20 | 7/16" | 7/32" | ASME B18.2.2 | 100 | 000000000 | 00000 |
| 5/16"-18 | 1/2" | 17/64" | ASME B18.2.2 | 100 | 000000000 | 0000 |
| 3/8"-16 | 9/16" | 21/64" | ASME B18.2.2 | 100 | 000000000 | 00000 |
| 7/16"-14 | 11/16" | 3/8" | ASME B18.2.2 | 50 | 000000000 | 00000 |
| 1/2"-13 | 3/4" | 7/16" | ASME B18.2.2 | 50 | 000000000 | 00000 |
| 9/16"-12 | 7/8" | 31/64" | ASME B18.2.2 | 25 | 000000000 | 00000 |
| 5/8"-11 | 15/16" | 35/64" | ASME B18.2.2 | 25 | 000000000 | 00000 |
| 3/4"-10 | 1 1/8" | 41/64" | ASME B18.2.2 | 10 | 000000000 | 0000 |
| 7/8"-9 | 1 5/16" | 3/4" | ASME B18.2.2 | 10 | 000000000 | 00000 |
| 1"-8 | 1 1/2" | 55/64" | ASME B18.2.2 | 5 | 000000000 | 00000 |
| 1 1/8"-7 | 1 11/16" | 31/32" | ASME B18.2.2 | 1 | 000000000 | 0000 |
| 1 1/4"-7 | 1 7/8" | 1 1/16" | ASME B18.2.2 | 1 | 000000000 | 0000 |
| 1 1/2"-6 | 2 1/4" | 1 9/32" | ASME B18.2.2 | 1 | 000000000 | 0000 |
Extreme-Strength Steel Extra-Wide Hex Nuts—Grade 2H
Also known as heavy hex nuts, these nuts are about 10% wider and taller than standard hex nuts and distribute the load over a large area. Grade 2H nuts are comparable in strength to Grade 9 bolts. They're about 20% stronger than high-strength steel nuts and are used in heavy machinery, such as earth-moving equipment.
Hot-dipped galvanized steel nuts have a thick coating for better corrosion resistance than zinc-plated steel nuts. They must be used with other hot-dipped galvanized fasteners.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Wd. | Ht. | Specifications Met | Pkg. Qty. | Pkg. | |
Hot-Dipped Galvanized Steel—ASTM Grade 2H | ||||||
|---|---|---|---|---|---|---|
| 1/4"-20 | 1/2" | 15/64" | ASTM A194 | 50 | 000000000 | 000000 |
| 3/8"-16 | 11/16" | 23/64" | ASTM A194 | 50 | 000000000 | 00000 |
| 1/2"-13 | 7/8" | 31/64" | ASTM A194 | 25 | 000000000 | 00000 |
| 5/8"-11 | 1 1/16" | 39/64" | ASTM A194 | 10 | 000000000 | 00000 |
| 3/4"-10 | 1 1/4" | 47/64" | ASTM A194 | 10 | 000000000 | 00000 |
| 7/8"-9 | 1 7/16" | 55/64" | ASTM A194 | 5 | 000000000 | 00000 |
| 1"-8 | 1 5/8" | 63/64" | ASTM A194 | 5 | 000000000 | 00000 |
| 1 1/8"-7 | 1 13/16" | 1 7/64" | ASTM A194 | 1 | 000000000 | 0000 |
| 1 1/8"-8 | 1 13/16" | 1 7/64" | ASTM A194 | 1 | 000000000 | 0000 |
| 1 1/4"-7 | 2" | 1 7/32" | ASTM A194 | 1 | 000000000 | 0000 |
| 1 1/4"-8 | 2" | 1 7/32" | ASTM A194 | 1 | 000000000 | 0000 |
| 1 3/8"-6 | 2 3/16" | 1 11/32" | ASTM A194 | 1 | 000000000 | 0000 |
| 1 1/2"-6 | 2 3/8" | 1 15/32" | ASTM A194 | 1 | 000000000 | 00000 |
| 1 3/4"-5 | 2 3/4" | 1 23/32" | ASTM A194 | 1 | 000000000 | 00000 |
| 2"-4 1/2 | 3 1/8" | 1 31/32" | ASTM A194 | 1 | 000000000 | 00000 |
High-Strength Steel Extra-Wide Hex Nuts
Also known as heavy hex nuts, these nuts are about 10% wider and taller than standard hex nuts and distribute the load over a large area. They're about 25% stronger than medium-strength steel extra-wide hex nuts and comparable in strength to Class 10.9 bolts.
Hot-dipped galvanized steel nuts have a thick coating for better corrosion resistance than zinc-plated steel nuts. They must be used with other hot-dipped galvanized fasteners.
For technical drawings and 3-D models, click on a part number.
Thread | |||||||
|---|---|---|---|---|---|---|---|
| Size | Pitch, mm | Wd., mm | Ht., mm | Specifications Met | Pkg. Qty. | Pkg. | |
Hot-Dipped Galvanized Steel—Class 10 | |||||||
| M12 | 1.75 | 22 | 10 | DIN 6915, ISO 7414 | 5 | 000000000 | 00000 |
| M16 | 2 | 27 | 13 | DIN 6915, ISO 7414 | 5 | 000000000 | 00000 |
| M20 | 2.5 | 32 | 16 | DIN 6915, ISO 7414 | 1 | 000000000 | 0000 |
| M22 | 2.5 | 36 | 18 | DIN 6915, ISO 7414 | 1 | 000000000 | 0000 |
| M24 | 3 | 41 | 19 | DIN 6915, ISO 7414 | 1 | 000000000 | 0000 |
| M27 | 3 | 46 | 22 | DIN 6915, ISO 7414 | 1 | 000000000 | 0000 |
| M30 | 3.5 | 50 | 24 | DIN 6915, ISO 7414 | 1 | 000000000 | 00000 |
| M36 | 4 | 60 | 29 | DIN 6915, ISO 7414 | 1 | 000000000 | 00000 |
Extreme-Strength Steel Extra-Wide Hex
Nuts for Structural Applications—Grade DH
These nuts are designed to secure ASTM A325 bolts in structural joints. Also known as heavy hex nuts, they are about 10% wider and taller than standard hex nuts.
Hot-dipped galvanized steel nuts have a thick coating for good corrosion resistance. They must be used with other hot-dipped galvanized fasteners.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Wd. | Ht. | Specifications Met | Pkg. Qty. | Pkg. | |
Hot-Dipped Galvanized Steel—ASTM Grade DH | ||||||
|---|---|---|---|---|---|---|
| 1/2"-13 | 7/8" | 31/64" | ASTM A563 | 25 | 000000000 | 000000 |
| 5/8"-11 | 1 1/16" | 39/64" | ASTM A563 | 10 | 000000000 | 00000 |
| 3/4"-10 | 1 1/4" | 47/64" | ASTM A563 | 10 | 000000000 | 00000 |
| 7/8"-9 | 1 7/16" | 55/64" | ASTM A563 | 10 | 000000000 | 00000 |
| 1"-8 | 1 5/8" | 63/64" | ASTM A563 | 5 | 000000000 | 00000 |
| 1 1/4"-7 | 2" | 1 7/32" | ASTM A563 | 1 | 000000000 | 0000 |
| 1 1/2"-6 | 2 3/8" | 1 15/32" | ASTM A563 | 1 | 000000000 | 00000 |
High-Strength Steel Extra-Wide Hex Nuts for Structural Applications—Grade C
These nuts are designed to secure ASTM A325 bolts in structural joints. Also known as heavy hex nuts, they are about 10% wider and taller than standard hex nuts and distribute the load over a large area.
Hot-dipped galvanized steel nuts have a thick coating for good corrosion resistance. They must be used with other hot-dipped galvanized fasteners.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Wd. | Ht. | Specifications Met | Pkg. Qty. | Pkg. | |
Hot-Dipped Galvanized Steel—ASTM Grade C | ||||||
|---|---|---|---|---|---|---|
| 1/2"-13 | 7/8" | 31/64" | ASTM A563 | 5 | 000000000 | 00000 |
| 5/8"-11 | 1 1/16" | 39/64" | ASTM A563 | 1 | 000000000 | 0000 |
| 3/4"-10 | 1 1/4" | 47/64" | ASTM A563 | 1 | 000000000 | 0000 |
| 7/8"-9 | 1 7/16" | 55/64" | ASTM A563 | 1 | 000000000 | 00000 |
| 1"-8 | 1 5/8" | 63/64" | ASTM A563 | 1 | 000000000 | 00000 |
| 1 1/8"-7 | 1 3/4" | 1 7/64" | ASTM A563 | 1 | 000000000 | 00000 |
| 1 1/4"-7 | 2" | 1 7/32" | ASTM A563 | 1 | 000000000 | 00000 |
Low-Strength Steel Coupling Nuts
Also known as extension nuts, use these to connect and extend threaded rods. They're about half the strength of medium-strength steel coupling nuts for use in light duty fastening applications.
Hot-dipped galvanized steel coupling nuts have a thick coating for better corrosion resistance than zinc-plated steel nuts. They must be used with other hot-dipped galvanized fasteners.
For technical drawings and 3-D models, click on a part number.
Each | |||||
|---|---|---|---|---|---|
| Thread Size | Lg. | Wd. | 1-9 | 10-Up | |
Hot-Dipped Galvanized Steel | |||||
| 3/8"-16 | 1 3/4" | 5/8" | 000000000 | 00000 | 00000 |
| 7/16"-14 | 1 3/4" | 5/8" | 000000000 | 0000 | 0000 |
| 1/2"-13 | 1 3/4" | 11/16" | 000000000 | 0000 | 0000 |
| 5/8"-11 | 2 1/8" | 13/16" | 000000000 | 0000 | 0000 |
| 3/4"-10 | 2 1/4" | 1" | 000000000 | 0000 | 0000 |
| 3/4"-10 | 3" | 1" | 000000000 | 0000 | 0000 |
| 7/8"-9 | 2 1/2" | 1 1/4" | 000000000 | 00000 | 00000 |
| 1"-8 | 2 3/4" | 1 3/8" | 000000000 | 00000 | 00000 |
| 1"-8 | 3" | 1 3/8" | 000000000 | 00000 | 00000 |
| 1 1/8"-7 | 3" | 1 1/2" | 000000000 | 00000 | 00000 |
| 1 1/4"-7 | 3" | 1 5/8" | 000000000 | 00000 | 00000 |
Medium-Strength Steel Coupling Nuts—Grade 5
Also known as extension nuts, use these to connect and extend threaded rods.
Hot-dipped galvanized steel coupling nuts have a thick coating for better corrosion resistance than zinc-plated steel nuts. They must be used with other hot-dipped galvanized fasteners.
For technical drawings and 3-D models, click on a part number.
Low-Strength Steel Square Nuts
Large flat sides make these nuts easy to grip with a wrench and keep them from rotating in channels and square holes. About half the strength of medium-strength steel square nuts, use them in light duty fastening applications, such as securing access panels.
Hot-dipped galvanized steel square nuts have a thick coating for better corrosion resistance than zinc-plated steel nuts. They must be used with other hot-dipped galvanized fasteners.
For technical drawings and 3-D models, click on a part number.
Concave Square Nuts
Also known as utility-pole nuts, these square nuts have a cupped shape that ensures a flush fit against curved surfaces and corners that bite into soft materials to resist loosening. Made from hot-dipped galvanized steel, they have a thick coating to resist corrosion in wet environments. They must be used with other hot-dipped galvanized fasteners.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
Hot-Dipped Galvanized Steel | |||||
|---|---|---|---|---|---|
| 3/8"-16 | 5/8" | 7/32" | 25 | 000000000 | 000000 |