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Hardness Hardness |
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Specifications Met Specifications Met |
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Tolerance Rating Tolerance Rating |
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Fabrication Fabrication |
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Yield Strength Yield Strength |
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Appearance Appearance |
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Minimum Temperature Minimum Temperature |
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Maximum Temperature Maximum Temperature |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Heat Treatment Heat Treatment |
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Maximum Hardness After Heat Treatment Maximum HardnessAfter Heat Treatment |
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Nut Type Nut Type |
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Thread Size Thread Size |
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About Copper, Brass, and Bronze
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About Stainless Steel
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About Plastic
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About Aluminum
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Selecting Compatible Lead Screws and Nuts
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About Carbon Steel, Alloy Steel, Spring Steel, and Cast Iron
More
Low-Carbon Steel Rods and Discs
- Yield Strength: See table
- Hardness: See table
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment: See table
- Specifications Met: See table
Also known as mild steel, low-carbon steel is easy to machine, form, and weld. It's widely fabricated into parts that don’t require high strength, such as fixture clamps, mounting plates, and spacers. This material can be surface hardened with heat treating.
If you don't see the size you're looking for, please specify a length under additional rod lengths.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ACTIVITY after your order ships.
To Order: Please specify length in increments of 0.25" within the range listed.
| Dia. | Dia. Tolerance | Yield Strength, psi | Hardness | Max. Hardness After Heat Treatment | Specifications Met | Choose a Length | Per Inch | |
| 2 5/8" | -0.004" to 0" | 54,000 | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 13"-90" | 0000000 | 00000 |
Tight-Tolerance Ultra-Machinable 12L14 Carbon Steel Rods
- Yield Strength: 65,000 psi
- Hardness: Rockwell B80 (Medium)
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment: Rockwell C65
- Specifications Met: ASTM A108
Ready for turning in a lathe, these rods are precision ground and held to a strict straightness tolerance. The lead additive acts as a lubricant, which allows 12L14 carbon steel to withstand very fast machining. It's used to fabricate a wide variety of machine parts.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ACTIVITY after your order ships.
Ultra-Machinable 12L14 Carbon Steel Rods
- Yield Strength: 60,000 psi
- Hardness: Rockwell B85 (Medium)
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment: Not Rated
- Specifications Met: ASTM A108, ASTM A29
The lead additive acts as a lubricant, which allows 12L14 carbon steel to withstand very fast machining. It's used to fabricate a wide variety of machine parts.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ACTIVITY after your order ships.
High-Strength Easy-to-Machine 1144 Carbon Steel Rods
- Yield Strength: 100,000 psi
- Hardness:
Inch sizes: Rockwell C25 (Hard)
Metric sizes: Rockwell C15 (Medium) - Heat Treatable: Yes
- Max. Hardness After Heat Treatment: Not Rated
- Specifications Met:
Inch sizes: ASTM A108, ASTM A28, ASTM A311
Metric sizes: ASTM A108, ASTM A311
Often called Stressproof, these rods are stress-relieved to minimize warping during machining. Containing more carbon and manganese than other easy-to-machine carbon steels, 1144 offers higher yield strength and hardness, even without further heat treatment. Use it to fabricate parts that require stress resistance.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ACTIVITY after your order ships.
Tight-Tolerance High-Strength Easy-to-Machine 1144 Carbon Steel Rods
- Yield Strength: 100,000 psi
- Hardness: Rockwell C22 (Hard)
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment: Not Rated
- Specifications Met: ASTM A108, ASTM A311
These rods are precision ground and held to a strict straightness tolerance, so they're all set for turning applications in your lathe. Often called Stressproof, they are stress-relieved to minimize warping during machining. Containing more carbon and manganese than other easy-to-machine carbon steels, 1144 offers higher yield strength and hardness, even without further heat treatment. Use it to fabricate parts that require stress resistance.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ACTIVITY after your order ships.
High-Strength 1045 Carbon Steel Rods and Discs
Stronger than low-carbon steel with equally good machinability, 1045 carbon steel is widely used for bolts, studs, and shafts.
If you don't see the size you're looking for, please specify a length under additional rod lengths.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ACTIVITY after your order ships.
- Yield Strength:
Inch sizes: 77,000 psi
Metric sizes: 65,000 psi - Hardness:
Inch sizes: Rockwell B90 (Medium)
Metric sizes: Rockwell B80 (Medium) - Heat Treatable: Yes
- Max. Hardness After Heat Treatment: Not Rated
- Specifications Met:
Inch sizes: ASTM A108
Metric sizes: ASTM A108, ASTM A29, ASTM A576
- Yield Strength: 77,000 psi
- Hardness: Rockwell B90 (Medium)
- Heat Treatable: Yes
- Specifications Met: ASTM A108, ASTM A29
To Order: Please specify length in increments of 0.25" within the range listed.
| Dia. | Dia. Tolerance | Straightness Tolerance | Choose a Length | Per Inch | |
| 2 5/8" | -0.005" to 0" | 1/8" | 13"-90" | 0000000 | 00000 |
Hardened Multipurpose 4140 Alloy Steel Rods
- Yield Strength: 95,000 psi
- Hardness: Rockwell C25 (Hard)
- Specifications Met: ASTM A108, ASTM A193, ASTM A29
These rods are hardened for increased abrasion and impact resistance. Also known as chrome-moly steel, this versatile 4140 alloy steel is used for a wide range of parts, such as gears, axles, shafts, collets, and die holders. It resists fracturing from repeated stress.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ACTIVITY after your order ships.
Multipurpose 4140 Alloy Steel Rods and Discs
Also known as chrome-moly steel, this versatile 4140 alloy steel is used for a wide range of parts, such as gears, axles, shafts, collets, and die holders. It resists fracturing from repeated stress.
If you don't see the size you're looking for, please specify a length under additional rod lengths.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ACTIVITY after your order ships.
- Yield Strength: 60,000 psi
- Hardness: Rockwell C10 (Medium)
- Heat Treatable: Yes
- Maximum Hardness After Heat Treatment: Not Rated
- Specifications Met: ASTM A108, ASTM A29
- Yield Strength: 60,000 psi
- Hardness: Rockwell C19 (Medium)
- Heat Treatable: Yes
- Maximum Hardness After Heat Treatment: Rockwell C48
- Specifications Met: ASTM A108, ASTM A29
To Order: Please specify length in increments of 0.25" within the range listed.
| Dia. | Dia. Tolerance | Heat Treatment | Choose a Length | Per Inch | |
| 2 5/8" | -0.005" to 0" | Annealed (Softened) | 13"-90" | 0000000 | 00000 |
High-Strength 4340 Alloy Steel Rods
- Yield Strength: 68,000 psi
- Hardness: Rockwell C20 (Hard)
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment: Rockwell C53
Use 4340 alloy steel for power transmission and structural applications that involve extreme impact, heat, and wear.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ACTIVITY after your order ships.
Multipurpose 304 Stainless Steel
From cookware to chemical-processing equipment, 304 stainless steel is a good all-around choice for a wide range of applications. It maintains its corrosion resistance in temperatures up to 1500° F.
304/304L stainless steel contains less carbon than standard 304 for better weldability.
If you don't see the rod size you're looking for, please specify a length under additional 304/304L stainless steel rod lengths.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ACTIVITY after your order ships.
- Yield Strength: 30,000 psi
- Hardness: Rockwell B75 (Medium)
- Heat Treatment: Annealed (Softened)
- Heat Treatable: No
- Specifications Met: ASTM A276
Easy-to-Machine 303 Stainless Steel
Widely used for fabricating fittings and fasteners, 303 stainless steel machines quickly without sticking to cutting tools. It maintains its corrosion resistance in temperatures up to 1500° F.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ACTIVITY after your order ships.
- Yield Strength: 25,000 psi
- Hardness:
Inch Sizes: Rockwell B77 (Medium)
Metric Sizes: Rockwell B85 (Medium) - Heat Treatment: Annealed (Softened)
- Heat Treatable: No
- Specifications Met:
Inch Sizes: ASTM A582
Metric Sizes: ASTM A564, ASTM A582
High-Strength 17-4 PH Stainless Steel
With a higher chromium content than 15-5 PH stainless steel, this high-strength 17-4 PH offers better corrosion resistance. It is also known as 630 stainless steel. This material maintains its corrosion resistance in temperatures up to 1100° F.
If you don't see the rod size you're looking for, please specify a length under additional rod lengths.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ACTIVITY after your order ships.
- Yield Strength: Not Rated
- Hardness: Rockwell C30 (Hard)
- Heat Treatment: Annealed (Softened)
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment: Rockwell C45
- Specifications Met: ASTM A564, SAE AMS5643
To Order: Please specify length in increments of 0.125" within the range listed.
| Dia. | Dia. Tolerance | Fabrication | Straightness Tolerance | Magnetic Properties | Choose a Length | Per Inch | |
| 2 5/8" | -0.003" to 0.003" | Cold Drawn | 1/16" per 5 ft. | Magnetic | 13"-90" | 000000000 | 000000 |
Corrosion-Resistant 316 Stainless Steel
The addition of molybdenum gives 316 stainless steel excellent corrosion resistance. Use it in a variety of marine and chemical-processing applications. It maintains its corrosion resistance up to the maximum temperature.
316/316L stainless steel contains less carbon than standard 316 for better weldability.
If you don’t see the rod size you’re looking for, please specify a length under additional rod lengths.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ACTIVITY after your order ships.
- Yield Strength:
Inch Sizes: 30,000 psi
Metric Sizes: 29,000 psi - Hardness:
Inch Sizes: Rockwell B75 (Medium)
Metric Sizes: Rockwell B80 (Medium) - Heat Treatment: Annealed (Softened)
- Heat Treatable: No
- Specifications Met:
Inch Sizes: ASTM A276
- Yield Strength: 30,000 psi
- Hardness: Rockwell B75 (Medium)
- Heat Treatment: Annealed (Softened)
- Heat Treatable: No
- Specifications Met: ASTM A276
To Order: Please specify length in increments of 0.125" within the range listed.
| Dia. | Dia. Tolerance | Fabrication | Max. Temp., °F | Straightness Tolerance | Choose a Length | Per Inch | |
316/316L Stainless Steel | |||||||
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| 2 5/8" | -0.003" to 0.003" | Cold Worked | 1500° | 1/8" per 5 ft. | 13"-90" | 000000000 | 000000 |
Easy-to-Machine 416 Stainless Steel
One of the most machinable types of stainless steel available, 416 contains sulfur for fast machining without clogging cutting tools. It's used for gears, screws, and shafts. This material maintains its corrosion resistance in temperatures up to 1200° F.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ACTIVITY after your order ships.
- Yield Strength: 40,000 psi
- Hardness: Rockwell B80 (Medium)
- Heat Treatment: Annealed (Softened)
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment: Rockwell C40
- Specifications Met: ASTM A582, QQ-S-764
Bearing-Quality 440C Stainless Steel
One of the hardest types of stainless steel after heat treating, 440C offers excellent wear and abrasion resistance. It’s often used for bearings, valves, and knife blades. This material maintains its corrosion resistance in temperatures up to 800° F.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ACTIVITY after your order ships.
- Yield Strength: 65,000 psi
- Hardness: Rockwell C20 (Hard)
- Heat Treatment: Annealed (Softened)
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment: Rockwell C60
- Specifications Met: ASTM A276, SAE AMS5630
Multipurpose 6061 Aluminum Rods and Discs
- Yield Strength: 35,000 psi
- Hardness:
Foot and inch sizes: Brinell 95 (Soft)
Metric sizes: Brinell 80 (Soft) - Temper: See table
- Fabrication: See table
- Specifications Met:
Cold Worked: ASTM B211
Extruded: ASTM B221
The most widely used aluminum, 6061 is fabricated into everything from pipe fittings and containers to automotive and aerospace parts. It is strong and corrosion resistant, plus it's easy to machine and weld.
If you don't see the size you're looking for, please specify a length under additional rod lengths.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ACTIVITY after your order ships.
To Order: Please specify length in increments of 0.25" within the range listed.
| Dia. | Dia. Tolerance | Fabrication | Temper | Heat Treatment | Temperature Range, °F | Choose a Length | Per Inch | |
| 2 5/8" | -0.024" to 0.024" | Extruded | T6511 | Hardened | -320° to 300° | 13"-90" | 0000000 | 00000 |
High-Strength 7075 Aluminum Rods and Discs
Originally developed for aircraft frames, uses for 7075 aluminum now include keys, gears, and other high-stress parts. It is often used as a replacement for 2024 aluminum because it’s stronger and provides similar performance in all other aspects.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ACTIVITY after your order ships.
- Yield Strength: 73,000 psi
- Hardness: Brinell 150 (Medium)
- Temper:
3/8" to 5/8" dia.: T6
All other sizes: T651 - Fabrication: Cold Drawn
- Specifications Met: ASTM B211, SAE AMS-QQ-A-225/9
High-Strength 2024 Aluminum Rods and Discs
- Yield Strength: 45,000 psi
- Hardness: Brinell 120 (Medium)
- Temper:
3/16" to 3/8" dia.: T4
All other sizes: T351 - Fabrication: Cold Drawn
- Specifications Met: ASTM B211, SAE AMS-QQ-A-225/6, SAE AMS4120
While 2024 aluminum was initially designed for structural components in aircraft, it's now widely used when a high strength-to-weight ratio is needed, such as for gears, shafts, and fasteners. It offers similar performance to 7075 aluminum, but it’s not as strong.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ACTIVITY after your order ships.
Ultra-Machinable 360 Brass Rods and Discs
- Yield Strength:
Inch sizes: 15,000 psi
Metric sizes: 23,000 psi - Hardness: See table
- Temper:
Inch sizes: H02 (1/2 Hard)
Metric sizes: 1/2 Hard - Heat Treatable: No
- Specifications Met:
Inch sizes: ASTM B16
Metric sizes: European Standard EN 12164
With the highest lead content of all the brass alloys, 360 offers the best machinability. Often called free-machining and free-cutting brass, it stands up to high-speed drilling, milling, and tapping operations with minimal wear on your tools. It’s commonly used for gears, pinions, and lock components.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ACTIVITY after your order ships.
Ball Screws and Nuts
Internal ball bearings provide smooth low-friction travel in applications that require high speeds, accurate positioning, and repeatable movement. Also known as single-start ball screws and nuts, they have a single thread that runs the length of the screw. They operate with more torque than fast-travel ball screws and nuts. To ensure compatibility, select components that have the same thread direction and size. Ball nuts are furnished with a tube to keep ball bearings in place. Do not remove the tube until you are ready to install the nuts onto the screws.
Travel distance per turn, also known as screw lead, is the distance a ball nut moves with one revolution of the ball screw.
For technical drawings and 3-D models, click on a part number.
Secure a way wiper on the end of a ball nut to sweep chips and other contaminants out of the way as it moves across the ball screw.
| Thread Size | Lg. | Dia. | No. of Thread Starts | Travel Distance per Turn | External Thread Size | Hardness | Dynamic Thrust Load Cap., lbs. | Max. Backlash | Temperature Range, °F | Each | ||
Black-Oxide Alloy Steel | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | 1 1/2"-2 | 5 19/32" | 2 5/8" | 1 | 0.5" | 2.36"-18 | Rockwell C56 | 14,500 | 0.015" | -40° to 300° | 00000000 | 0000000 |
Flange | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Lg. | Dia. | Dia. | Thick. | No. of Thread Starts | Travel Distance per Turn | Bolt Circle Dia. | Hardness | Dynamic Thrust Load Cap., lbs. | Max. Backlash | Temperature Range, °F | Each | ||
Black-Oxide Alloy Steel | ||||||||||||||
| C | 1 1/2"-2 | 5 19/32" | 2 5/8" | 4 21/32" | 25/32" | 1 | 0.5" | 3 7/8" | Rockwell C56 | 14,500 | 0.015" | -40° to 300° | 00000000 | 0000000 |
Fast-Travel Ball Screws and Nuts
Multiple thread channels (also known as thread starts) create faster linear travel than ball screws with a single thread start. Internal ball bearings provide smooth low-friction travel in applications that require high speeds, accurate positioning, and repeatable movement. To ensure compatibility, select components that have the same thread size and number of thread starts. Ball nuts are furnished with a tube to keep ball bearings in place. Do not remove the tube until you are ready to install the nuts onto the screws.
Black-oxide alloy steel ball nuts have mild corrosion resistance.
Travel distance per turn, also known as screw lead, is the distance a ball nut moves with one revolution of the ball screw.
For technical drawings and 3-D models, click on a part number.
Secure a way wiper on the end of a ball nut to sweep chips and other contaminants out of the way as it moves across the ball screw.
Ball Nuts | ||||||||||||||||
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Flange | Way Wipers | |||||||||||||||
| Thread Size | Lg. | Dia. | Dia. | Thick. | No. of Thread Starts | Travel Distance per Turn | Bolt Circle Dia. | Hardness | Dynamic Thrust Load Cap., lbs. | Max. Backlash | Temperature Range, °F | Each | Each | |||
Black-Oxide Alloy Steel | ||||||||||||||||
| C | 1 1/2"-2 | 3 5/8" | 2 5/8" | 4 15/16" | 1 1/64" | 2 | 1" | 4 1/8" | Rockwell C56 | 8,200 | 0.015" | -40° to 300° | 00000000 | 0000000 | 0000000 | 000000 |
Wear-Resistant Nylon Rods and Discs
- Color: Off-White or Black
- Max. Temperature: 185° F
- Tensile Strength: 11,200-12,300 psi (Good)
- Impact Strength: 0.6-1.4 ft.-lbs./in. (Poor)
- Hardness: Rockwell R108-R121 (Hard)
- For Use Outdoors: No
- Specifications Met:
Off-White:
1/16" Dia.: ASTM D5989, ASTM D6779, FDA Compliant 21 CFR 177.1500, UL 94 HB
1/8" Dia. and larger: ASTM D5989, ASTM D6779, FDA Compliant 21 CFR 177.1500, UL 94 V-2
Black:
ASTM D5989, ASTM D6779, UL 94 V-2
Often machined into bearings, gears, cams, and valve seats, these wear-resistant nylon 6/6 rods and discs have a slippery surface that reduces friction.
Chemical-Resistant PVC Rods and Discs
- Color: Gray
- Temperature Range: 5° to 140° F
- Tensile Strength: 7,000-7,800 psi (Good)
- Impact Strength: 0.7-3 ft.-lbs./in. (Poor)
- Hardness: Rockwell R110-R120 (Hard)
- Specifications Met: UL 94 V-0
- For Use Outdoors: No
Often used to make valve and tank parts for chemical-processing applications, these rods and discs have excellent resistance to acids and alkalies. They’re PVC Type 1, which is easy to thermoform. These rods are also excellent electrical insulators.
For technical drawings and 3-D models, click on a part number.