System of Measurement System of Measurement |
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Diameter Diameter | Show |
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Diameter Diameter | Hide |
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Material Material |
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Mechanical Finish Mechanical Finish |
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Shape Shape |
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![]() | Rod and Disc |
Hardness Hardness |
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Hardness Rating Hardness Rating |
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Yield Strength Yield Strength |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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For Motion Type For Motion Type |
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![]() | Linear |
![]() | Linear and Rotary |
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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Surface Smoothness Surface Smoothness |
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Tolerance Rating Tolerance Rating |
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Edge Type Edge Type |
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![]() | Chamfered |
Appearance Appearance |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Surface Yield Strength Surface Yield Strength |
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About Shafts
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About Tool Steel
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About Stainless Steel
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Selecting Compatible Lead Screws and Nuts
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About Composites
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About Carbon Steel, Alloy Steel, Spring Steel, and Cast Iron
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Linear Motion Shafts

Smooth, hard, and wear resistant, linear motion shafts work with linear bearings to reduce friction in manual and automated systems, such as those found in packing, machine tool, and material handling operations. The smooth surface reduces friction and wear on the bearing—the lower the microinch value a shaft has, the smoother its finish and the less friction it will create. All are turned, ground, and polished to tight diameter and straightness tolerances.
Steel shafts are generally stronger than aluminum and stainless steel shafts but not as corrosion resistant. 52100 alloy steel shafts are good for high-load applications. They are, however, more difficult to machine than carbon steel shafts.
Shafts with chamfered edges have their edges ground to reduce damage to bearings, housings, and other components during installation.
Case-hardened shafts are hardened only on the surface of the shaft, which increases wear resistance while allowing the center to remain soft for absorbing stresses caused by shifting loads.
For technical drawings and 3-D models, click on a part number.
Lg., mm | Lg. Tolerance, mm | Straightness Tolerance | Surface Smoothness | Edge Type | Hardness Rating | Hardness | Heat Treatment | Yield Strength, psi | Each | |
13 mm Dia. (Tolerance: -0.017 mm to -0.006 mm) | ||||||||||
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200 | -0.8 to 0.8 | 0.050 mm per 300 mm | 16 microinch | Chamfered | Very Hard | Rockwell C59 | Case Hardened | 128,000 | 00000000 | 000000 |
400 | -0.8 to 0.8 | 0.050 mm per 300 mm | 16 microinch | Chamfered | Very Hard | Rockwell C59 | Case Hardened | 128,000 | 00000000 | 00000 |
500 | -0.8 to 0.8 | 0.050 mm per 300 mm | 16 microinch | Chamfered | Very Hard | Rockwell C59 | Case Hardened | 128,000 | 0000000 | 00000 |
1,000 | -0.8 to 0.8 | 0.050 mm per 300 mm | 16 microinch | Chamfered | Very Hard | Rockwell C59 | Case Hardened | 128,000 | 0000000 | 00000 |
1,200 | -0.8 to 0.8 | 0.050 mm per 300 mm | 16 microinch | Chamfered | Very Hard | Rockwell C59 | Case Hardened | 128,000 | 0000000 | 00000 |
Threaded Linear Motion Shafts

Mount these externally threaded shafts into tapped holes rather than using a shaft support, or attach a hex nut, shaft collar, or other threaded accessory. Smooth, hard, and wear resistant, linear motion shafts work with linear bearings to reduce friction in manual and automated systems, such as those found in packing, machine tool, and material handling operations. The smooth surface reduces friction and wear on the bearing—the lower the microinch value a shaft has, the smoother its finish and the less friction it will create. Shafts are case-hardened to increase hardness and wear resistance on the surface of the shaft while allowing the center to remain soft for absorbing stresses caused by shifting loads. The edges are chamfered to remove sharp corners, reducing damage to bearings, housings, and other components during installation. All are turned, ground, and polished to tight diameter and straightness tolerances.
For technical drawings and 3-D models, click on a part number.

Thread | ||||||||||
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Lg. | Size | Lg. | Step Lg. | Straightness Tolerance | Surface Smoothness, microinch | Edge Type | Heat Treatment | Yield Strength, psi | Each | |
Metric—52100 Alloy Steel (Rockwell C60) | ||||||||||
13mm Dia. | ||||||||||
150mm | M8 | 10mm | 16mm | 0.050 mm per 300 mm | 16 | Chamfered | Case Hardened | 57,000 | 00000000 | 000000 |
Splined Shafts for Rotary and Linear Motion

Grooves on the surface of these shafts transmit rotary power while allowing bearings to move freely along the length of the shaft. The edges are chamfered to remove sharp corners, reducing damage to bearings, housings, and other components during installation. All are turned, ground, and polished to tight diameter and straightness tolerances.
Four Splines
Shafts with four splines work with ball spline bearings, which create relatively little friction. They're commonly found in robotic and other automated systems that require complex, fast movements. They don't transmit as much torque as shafts with six splines.
All four-spline shafts are 52100 alloy steel for high strength. They're case-hardened to increase hardness and wear resistance on the surface of the shaft while allowing the center to remain soft for absorbing stresses caused by shifting loads.
For technical drawings and 3-D models, click on a part number.

Dia., mm | Dia. Tolerance, mm | Lg., mm | Lg. Tolerance, mm | Spline Lg., mm | Surface Smoothness, microinch | Edge Type | Yield Strength, psi | Each | |
Splined End × Splined End | |||||||||
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13 | -0.02 to 0 | 200 | -0.05 to 0.05 | 200 | 16 | Chamfered | 57,500 | 000000000 | 000000 |
13 | -0.02 to 0 | 500 | -0.08 to 0.08 | 500 | 16 | Chamfered | 57,500 | 000000000 | 000000 |
13 | -0.02 to 0 | 700 | -0.08 to 0.08 | 700 | 16 | Chamfered | 57,500 | 000000000 | 000000 |
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.
Ground rods are decarb-free for a uniform surface that will consistently accept 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 ORDER HISTORY after your order ships.
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 ORDER HISTORY 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.
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 ORDER HISTORY after your order ships.
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 ORDER HISTORY 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
Tight-Tolerance Multipurpose Oil-Hardening O1 Tool Steel Rods

- Yield Strength: 50,000 psi
- Hardness: Rockwell B90 (Medium)
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment:
Inch sizes: Rockwell C65
Metric sizes: Rockwell C62 - Specifications Met: ASTM A681
Ready for turning in a lathe, these rods are precision ground to a tight diameter tolerance. They’re also known as drill rod. Often used for dies, punches, and gauges, O1 tool steel is an oil-hardening material that resists wear and abrasion.
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 ORDER HISTORY after your order ships.
3 ft. Lg. | |||
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Dia. | Dia. Tolerance | Mechanical Finish | |
13mm | -0.025mm to 0.025mm | Precision Ground | 00000000 |
Tight-Tolerance Multipurpose Air-Hardening A2 Tool Steel Rods

Precision ground and held to a strict straightness tolerance, these rods are ready for turning in your lathe. They’re also known as drill rod. A2 tool steel is more wear resistant than O1 and it keeps a sharper cutting edge. This air-hardening material is widely used for punches, broaches, and dies.
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 ORDER HISTORY after your order ships.
- Yield Strength: 55,000 psi
- Hardness: Rockwell B90 (Medium)
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment: Rockwell C62
- Specifications Met: ASTM A681
Metric 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, these 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 size and travel distance per turn. 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.


Root diameter indicates the diameter the ball screw will be after machining away the threads.
Ball Screw | Flange Ball Nut | |||||||||||||
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Thread Size | Lg., mm | Root Dia., mm | Tensile Strength, psi | Lg., mm | Dia., mm | No. of Thread Starts | Travel Distance per Turn, mm | Accuracy for Travel Distance per Turn | Hardness | Dynamic Thrust Load Cap., lbs. | Max. Backlash, mm | Temperature Range, °F | Each | |
Carbon Steel Ball Screw with Alloy Steel Flange Ball Nut | ||||||||||||||
M6 | 150 | 5.3 | 21,000 | 21 | 13 | 1 | 1 | ±0.210 mm per 300 mm | Rockwell C58 | 150 | 0.05 | 5° to 175° | 0000000 | 0000000 |
M6 | 250 | 5.3 | 21,000 | 21 | 13 | 1 | 1 | ±0.210 mm per 300 mm | Rockwell C58 | 150 | 0.05 | 5° to 175° | 000000 | 000000 |
Multipurpose Flame-Retardant Garolite G-10/FR4 Rods

- Color: See Table
- Temperature Range: -100° F to 245° F
- Tensile Strength: 35,000-50,000 psi (Excellent)
- Impact Strength: 5.5-12 ft.-lbs./in. (Excellent)
- Hardness: Rockwell M115 (Extra Hard)
- For Use Outdoors: Yes
- Specifications Met: MIL-I-24768/27, UL 94 V-0
Made of a flame-retardant epoxy resin with fiberglass fabric reinforcement, these G-10/FR4 rods are a good all-around choice. They are strong, machinable, and electrically insulating. Garolite G-10/FR4 is also called epoxy-grade industrial laminate and phenolic.
For technical drawings and 3-D models, click on a part number.
Lever Handles


An easy-to-grip ball knob makes these handles a good replacement for gear levers. Use them to operate machinery. They mount into a threaded hole. Made of steel, all of these handles have a black-oxide or zinc-plated finish for mild rust resistance.
Revolving handles have a knob that spins freely, so the handles are easy to turn.
For technical drawings and 3-D models, click on a part number.
Thread | Knob | Each | ||||||||||
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Size | Pitch, mm | Stud Lg. | Handle Lg. | Dia. | Dia. | Material | Color | Stud Material | Temp. Range, °F | 1-9 | 10-Up | |
Threaded Stud with Fixed Handle | ||||||||||||
Black-Oxide Steel | ||||||||||||
M10 | 1.5 | 12.5mm | 203mm | 13mm | 35mm | Phenolic Plastic | Black | Steel | -70° to 200° | 0000000 | 00000 | 00000 |
Threaded Stud with Revolving Handle | ||||||||||||
Black Zinc-Plated Steel | ||||||||||||
M8 | 1.25 | 13mm | 48mm | 13mm | 32mm | Phenolic Plastic | Black | Steel | 0° to 300° | 00000000 | 0000 | 0000 |
Ball-Lever Shafts


Attach a ball knob (not included) to one of these shafts to create custom handles for operating machinery. Mount the other end into a threaded hole. These shafts can also be used to create your own gear levers.
Steel shafts have a black-oxide finish for mild rust resistance.
Stainless steel shafts have excellent corrosion resistance, making them the best choice for harsh environments. They also have good chemical resistance.
For technical drawings and 3-D models, click on a part number.