About Threaded Studs and Rods
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About Nuts, Materials, and Finishes
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Selecting Compatible Lead Screws and Nuts
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Metric Precision Lead Screws and Nuts
Pair with a motor in automated motion and positioning applications. A tight thread fit allows these lead screws and nuts to make accurate, repeatable starts and stops. Also known as single-start and self-locking lead screws and nuts, they have a single thread that runs the length of the screw. The nut travels only when the screw turns, so your system won’t unexpectedly move when the lead screw is at rest. To ensure compatibility, select components that have the same thread size.
Lead screws are 1018 carbon steel for good machinability.
932 bearing bronze nuts have good machinability and wear resistance. Manganese bronze nuts have good strength and wear resistance.
Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.
For technical drawings and 3-D models, click on a part number.
| Thread Size  | Thread Pitch, mm | Lg., mm | No. of Thread Starts | Speed Ratio | Travel Distance per Turn, mm | Accuracy for Travel Distance per Turn | Thread Fit | Hardness | Tensile Strength, psi | Specifications Met | Each | |
1018 Carbon Steel | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| M24 | 5 | 500 | 1 | 1:1 | 5 | ±0.15 mm per 300 mm | 8e | Brinell 150 | 85,000 | DIN 103 | 0000000 | 000000 |
| M24 | 5 | 1,000 | 1 | 1:1 | 5 | ±0.15 mm per 300 mm | 8e | Brinell 150 | 85,000 | DIN 103 | 0000000 | 00000 |
| M24 | 5 | 1,750 | 1 | 1:1 | 5 | ±0.15 mm per 300 mm | 8e | Brinell 150 | 70,000 | DIN 103 | 000000 | 000000 |
| Thread Size | Thread Pitch, mm | Lg. | Dia. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn, mm | Thread Fit | Hardness | Tensile Strength, psi | Dynamic Thrust Load Cap., lbs. | Specifications Met | Each | |
932 Bearing Bronze | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| M24 | 5 | 2" | 1.75" | 1 | 1:1 | 5 | 7H | Brinell 70 | Not Rated | 4,500 | DIN 103 | 0000000 | 000000 |
External Thread | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Thread Pitch, mm | Lg. | Dia. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn, mm | Size | Lg. | Thread Fit | Hardness | Tensile Strength, psi | Dynamic Thrust Load Cap., lbs. | Specifications Met | Each | |
Manganese Bronze | |||||||||||||||
| M24 | 5 | 1 1/2" | 1.5" | 1 | 1:1 | 5 | 1 3/8"-16 | 1/2" | 7H | Brinell 126 | 75,000 | 4,500 | DIN 103 | 0000000 | 0000000 |
Flange | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Thread Pitch, mm | Lg. | Dia. | Dia. | Thick. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn, mm | Bolt Circle Dia. | Thread Fit | Hardness | Tensile Strength, psi | Dynamic Thrust Load Cap., lbs. | Specifications Met | Each | |
Manganese Bronze | ||||||||||||||||
| M24 | 5 | 1 1/2" | 1.5" | 2 3/4" | 33/64" | 1 | 1:1 | 5 | 2 17/64" | 7H | Brinell 126 | Not Rated | 4,500 | DIN 103 | 0000000 | 000000 |
Metric Clamping Lead Screw Collars
Thread these one-piece collars onto a metric lead screw to separate and position components, or use them as an end stop to limit travel. Made of black-oxide steel, they have mild corrosion resistance. Tighten the clamping screws to secure.
To ensure compatibility, please select a collar that has the same thread type, direction, size, and pitch as your lead screw.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Thread Pitch, mm | OD, mm | Wd., mm | No. of Thread Starts | Material | Hardness | Each | |
Right-Hand Threaded | ||||||||
|---|---|---|---|---|---|---|---|---|
| M24 | 5 | 45 | 15 | 1 | Black-Oxide 1215 Carbon Steel | Brinell 167 | 00000000 | 000000 |
Metric High-Strength Steel Threaded Rods—Class 10.9
These Class 10.9 steel threaded rods are about 25% stronger than medium-strength steel rods.
For technical drawings and 3-D models, click on a part number.
| Lg. | Thread Pitch, mm | Tensile Strength, psi | Hardness | Specifications Met | Each | |
Steel | ||||||
|---|---|---|---|---|---|---|
M24 | ||||||
| 100 mm | 3 | 150,000 | Rockwell C32 | DIN 976 | 0000000 | 000000 |
| 150 mm | 3 | 150,000 | Rockwell C32 | DIN 976 | 0000000 | 00000 |
| 200 mm | 3 | 150,000 | Rockwell C32 | DIN 976 | 0000000 | 00000 |
| 300 mm | 3 | 150,000 | Rockwell C32 | DIN 976 | 0000000 | 00000 |
| 500 mm | 3 | 150,000 | Rockwell C32 | DIN 976 | 0000000 | 00000 |
| 1 m | 3 | 150,000 | Rockwell C32 | DIN 976 | 0000000 | 00000 |
| 2 m | 3 | 150,000 | Rockwell C32 | DIN 976 | 0000000 | 000000 |
Metric Very-High-Strength Steel Threaded Rods—Class 12.9
Class 12.9 rods are about 20% stronger than Class 10.9 threaded rods and are for use in heavy machinery.
For technical drawings and 3-D models, click on a part number.
| Lg. | Thread Pitch, mm | Tensile Strength, psi | Hardness | Specifications Met | Each | |
Steel | ||||||
|---|---|---|---|---|---|---|
M24 | ||||||
| 100 mm | 3 | 170,000 | Rockwell C39 | DIN 976 | 00000000 | 000000 |
| 150 mm | 3 | 170,000 | Rockwell C39 | DIN 976 | 00000000 | 00000 |
| 200 mm | 3 | 170,000 | Rockwell C39 | DIN 976 | 00000000 | 00000 |
| 300 mm | 3 | 170,000 | Rockwell C39 | DIN 976 | 0000000 | 00000 |
| 500 mm | 3 | 170,000 | Rockwell C39 | DIN 976 | 00000000 | 00000 |
| 1 m | 3 | 170,000 | Rockwell C39 | DIN 976 | 0000000 | 000000 |
| 2 m | 3 | 170,000 | Rockwell C39 | DIN 976 | 0000000 | 000000 |
Metric Medium-Strength Steel Threaded Rods—Grade B7
Made of Grade B7 steel, the tensile strength of these threaded rods is one and a half times higher than low-strength steel threaded rods. They also meet the pressure and temperature requirements of ASTM A193 and are often used to secure pressure tanks, valves, and flanges.
Zinc yellow-chromate plated steel threaded rods resist corrosion in wet environments.
For technical drawings and 3-D models, click on a part number.
| Lg. | Thread Pitch, mm | Tensile Strength, psi | Hardness | Specifications Met | Each | |
Steel | ||||||
|---|---|---|---|---|---|---|
M24 | ||||||
| 200 mm | 3 | 125,000 | Rockwell C35 | ASTM A193, DIN 976 | 000000000 | 000000 |
| 300 mm | 3 | 125,000 | Rockwell C35 | ASTM A193, DIN 976 | 000000000 | 00000 |
| 500 mm | 3 | 125,000 | Rockwell C35 | ASTM A193, DIN 976 | 000000000 | 00000 |
| 1 m | 3 | 125,000 | Rockwell C35 | ASTM A193, DIN 976 | 000000000 | 00000 |
| 2 m | 3 | 125,000 | Rockwell C35 | ASTM A193, DIN 976 | 000000000 | 000000 |
Zinc Yellow-Chromate Plated Steel | ||||||
M24 | ||||||
| 1 m | 3 | 125,000 | Rockwell C35 | ASTM A193, DIN 976 | 000000000 | 00000 |
| 2 m | 3 | 125,000 | Rockwell C35 | ASTM A193, DIN 976 | 000000000 | 000000 |
Black-Oxide Steel | ||||||
M24 | ||||||
| 1 m | 3 | 125,000 | Rockwell C35 | ASTM A193, DIN 976 | 000000000 | 00000 |
Metric Fine-Thread Medium-Strength Steel Threaded Rods—Grade B7
The tensile strength of these metric Grade B7 rods is about one and a half times higher than low-strength steel rods. Often used to secure pressure tanks, valves, and flanges, these rods meet the pressure and temperature requirements of ASTM A193.
For technical drawings and 3-D models, click on a part number.
| Lg. | Thread Pitch, mm | Tensile Strength, psi | Hardness | Specifications Met | Each | |
Steel | ||||||
|---|---|---|---|---|---|---|
M24 | ||||||
| 150 mm | 1.5 | 125,000 | Rockwell C35 | ASTM A193, DIN 976 | 000000000 | 000000 |
| 300 mm | 1.5 | 125,000 | Rockwell C35 | ASTM A193, DIN 975 | 000000000 | 000000 |
| 300 mm | 2 | 125,000 | Rockwell C35 | ASTM A193, DIN 975 | 000000000 | 00000 |
| 1 m | 1.5 | 125,000 | Rockwell C35 | ASTM A193, DIN 976 | 000000000 | 000000 |
| 1 m | 2 | 125,000 | Rockwell C35 | ASTM A193, DIN 976 | 000000000 | 000000 |
Medium-Strength Steel Threaded Rods—Class 8.8
An economical alternative to Grade B7 and Grade B16 threaded rods, these metric Class 8.8 rods are suitable for fastening most machinery and equipment.
Zinc-plated steel threaded rods resist corrosion in wet environments.
For technical drawings and 3-D models, click on a part number.
| Lg. | Thread Pitch, mm | Tensile Strength, psi | Hardness | Specifications Met | Each | |
Steel | ||||||
|---|---|---|---|---|---|---|
M24 | ||||||
| 200 mm | 3 | 110,000 | Rockwell C20 | DIN 976 | 000000000 | 000000 |
| 300 mm | 3 | 110,000 | Rockwell C20 | DIN 976 | 000000000 | 00000 |
| 500 mm | 3 | 110,000 | Rockwell C20 | DIN 976 | 000000000 | 00000 |
| 1 m | 3 | 110,000 | Rockwell C20 | DIN 975 | 000000000 | 000000 |
| 2 m | 3 | 110,000 | Rockwell C20 | DIN 976 | 000000000 | 000000 |
Zinc-Plated Steel | ||||||
M24 | ||||||
| 300 mm | 3 | 110,000 | Rockwell C20 | DIN 976 | 000000000 | 00000 |
| 500 mm | 3 | 110,000 | Rockwell C20 | DIN 976 | 000000000 | 00000 |
| 1 m | 3 | 110,000 | Rockwell C20 | DIN 975 | 000000000 | 00000 |
| 2 m | 3 | 110,000 | Rockwell C20 | DIN 976 | 000000000 | 000000 |
Metric Low-Strength Steel Threaded Rods
These threaded rods are about half the strength of medium-strength steel threaded rods for light duty hanging, mounting, and fastening.
Zinc-plated steel threaded rods are corrosion resistant in wet environments.
For technical drawings and 3-D models, click on a part number.
Metric Fine-Thread Low-Strength Steel Threaded Rods
About half the strength of medium-strength steel threaded rods, use these for light duty hanging, mounting, and fastening.
For technical drawings and 3-D models, click on a part number.
| Lg. | Thread Pitch, mm | Tensile Strength, psi | Hardness | Specifications Met | Each | |
Steel | ||||||
|---|---|---|---|---|---|---|
M24 | ||||||
| 150 mm | 1.5 | 50,000 | Rockwell B49 | DIN 976 | 000000000 | 000000 |
| 300 mm | 1.5 | 50,000 | Rockwell B49 | DIN 976 | 000000000 | 00000 |
| 300 mm | 2 | 50,000 | Rockwell B49 | DIN 976 | 000000000 | 00000 |
| 1 m | 1.5 | 50,000 | Rockwell B49 | DIN 976 | 000000000 | 00000 |
| 1 m | 2 | 50,000 | Rockwell B49 | DIN 976 | 000000000 | 000000 |
Metric Left-Hand Threaded Low-Strength Steel Threaded Rods
These threaded rods tighten when turned to the left; once fastened, they resist loosening from counterclockwise motion. About half the strength of medium-strength steel threaded rods, use them for light duty hanging, mounting, and fastening.
For technical drawings and 3-D models, click on a part number.
| Lg. | Thread Pitch, mm | Tensile Strength, psi | Hardness | Specifications Met | Each | |
Steel | ||||||
|---|---|---|---|---|---|---|
M24 | ||||||
| 1 m | 3 | 50,000 | Rockwell B49 | DIN 976 | 000000000 | 0000000 |
Metric 18-8 Stainless Steel Threaded Rods
These 18-8 stainless steel threaded rods have good chemical resistance and may be mildly magnetic.
For technical drawings and 3-D models, click on a part number.
| Lg. | Thread Pitch, mm | Tensile Strength, psi | Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||
|---|---|---|---|---|---|---|---|
M24 | |||||||
| 100 mm | 3 | 70,000 | Not Rated | DIN 976 | 1 | 000000000 | 000000 |
| 200 mm | 3 | 70,000 | Not Rated | DIN 976 | 1 | 000000000 | 00000 |
| 500 mm | 3 | 70,000 | Not Rated | DIN 976 | 1 | 000000000 | 00000 |
| 1 m | 3 | 70,000 | Not Rated | DIN 976 | 1 | 000000000 | 000000 |
| 2 m | 3 | 70,000 | Not Rated | DIN 976 | 1 | 000000000 | 000000 |
Metric Super-Corrosion-Resistant 316 Stainless Steel Threaded Rods
These 316 stainless steel threaded rods are more corrosion resistant than 18-8 and 410 stainless steel threaded rods and have excellent resistance to chemicals and salt water. They may be mildly magnetic. All meet DIN 976 specifications for dimensional standards.
Screws that meet ASTM A193 comply with pressure and temperature requirements and are often used to secure pressure tanks, valves and flanges.
For technical drawings and 3-D models, click on a part number.
Metric Threaded on Both Ends Studs
Also known as setup studs, these studs withstand sideways forces better than fully threaded studs because they have an unthreaded middle that is stronger than the treaded ends. The unthreaded middle also makes more contact with unthreaded holes, which creates better alignment than a fully threaded stud.
Black-oxide steel studs resist rusting in dry environments.
Studs that meet DIN standards meet dimensional and material requirements.
For technical drawings and 3-D models, click on a part number.
Metric Low-Strength Steel Coupling Nuts
Often referred to 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.
Zinc-plated steel coupling nuts resist corrosion in wet environments.
Black-oxide steel coupling 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.
Metric High-Strength Steel Coupling Nuts—Class 10
Often referred to as extension nuts, use these to connect and extend threaded rods. Made from Class 10 steel, they're about 25% stronger than medium-strength steel coupling nuts and comparable in strength to Class 10.9 bolts.
Steel nuts are best for dry environments, since moisture will cause them to rust. They are ready for painting or welding.
Zinc-plated steel nuts are corrosion resistant in wet environments.
For technical drawings and 3-D models, click on a part number.
Metric Medium-Strength Steel Coupling Nuts—Class 8
Often referred to as extension nuts, use these to connect and extend threaded rods. They're comparable in strength to Class 8.8 bolts.
Zinc-plated steel coupling nuts resist corrosion in wet environments.
Black-oxide steel coupling 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.
Metric 18-8 Stainless Steel Coupling Nuts
Made from 18-8 stainless steel, these metric coupling nuts have good chemical resistance and may be mildly magnetic. Also known as extension nuts, use them to connect and extend threaded rods.
For technical drawings and 3-D models, click on a part number.
Thread | Each | ||||||
|---|---|---|---|---|---|---|---|
| Size | Pitch, mm | Lg., mm | Wd., mm | Specifications Met | 1-9 | 10-Up | |
18-8 Stainless Steel | |||||||
| M24 | 3 | 72 | 36 | DIN 6334, ASME B18.2.2 | 000000000 | 000000 | 000000 |
Metric Super-Corrosion-Resistant 316 Stainless Steel Coupling Nuts
Made from 316 stainless steel, these coupling nuts have excellent resistance to chemicals and salt water. Also known as extension nuts, use them to connect and extend threaded rods. They may be mildly magnetic.
For technical drawings and 3-D models, click on a part number.
Thread | Each | ||||||
|---|---|---|---|---|---|---|---|
| Size | Pitch, mm | Lg., mm | Wd., mm | Specifications Met | 1-9 | 10-Up | |
316 Stainless Steel | |||||||
| M24 | 3 | 72 | 36 | DIN 6334 | 000000000 | 000000 | 000000 |
Brass Coupling Nuts
These coupling nuts are corrosion resistant in wet environments, electrically conductive, and nonmagnetic. Also known as extension nuts, use them to connect and extend threaded rods.
For technical drawings and 3-D models, click on a part number.
Each | |||||
|---|---|---|---|---|---|
| Thread Size | Lg., mm | Wd., mm | 1-9 | 10-Up | |
Brass | |||||
| M24 | 72 | 36 | 000000000 | 000000 | 000000 |
Stainless Steel Extra-Long Coupling Nuts
These coupling nuts have good chemical resistance. Also known as sleeve nuts, they're at least twice the length of standard coupling nuts to provide more room to connect and extend long lengths of threaded rods.
For technical drawings and 3-D models, click on a part number.
Thread | Each | |||||||
|---|---|---|---|---|---|---|---|---|
| Size | Pitch, mm | Lg., mm | Wd., mm | Threading | Min. Thread Lg., mm | 1-9 | 10-Up | |
18-8 Stainless Steel | ||||||||
| M24 | 3 | 144 | 41 | Partially Threaded | 24 | 000000000 | 0000000 | 0000000 |