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Shaft collars are useful for holding and positioning components on a shaft. They can also serve as mechanical stops and stroke limiters.
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Found in hand-powered clamps, vises, grates, doors, and work tables, lead screws and nuts have broad, square threads that are well suited for quick assembly, high clamping forces, and lifting and lowering heavy objects. To ensure compatibility, please select components that have the same thread direction, size, and pitch. Class 7E and 7H components are compatible.
Black-oxide carbon steel components have mild corrosion resistance. 932 bearing bronze components are more wear resistant than brass components. They have good machinability and fair corrosion resistance. 360 brass components have excellent machinability and good corrosion 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 | Thread Fit | Fastener Strength Grade/Class | Hardness | Specifications Met | Each | |
Black-Oxide Carbon Steel | |||||||||||
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M10 | 2 | 500 | 1 | 1:1 | 2 | Class 7E | Grade 2 | Not Rated | ASTM A108, ASTM A193, DIN 103 | 000000000 | 000000 |
M10 | 2 | 1,000 | 1 | 1:1 | 2 | Class 7E | Grade 2 | Not Rated | ASTM A108, ASTM A193, DIN 103 | 000000000 | 00000 |
M12 | 3 | 500 | 1 | 1:1 | 3 | Class 7E | Grade 2 | Not Rated | ASTM A108, ASTM A193, DIN 103 | 000000000 | 00000 |
M12 | 3 | 1,000 | 1 | 1:1 | 3 | Class 7E | Grade 2 | Not Rated | ASTM A108, ASTM A193, DIN 103 | 000000000 | 00000 |
M12 | 3 | 2,000 | 1 | 1:1 | 3 | Class 7E | Grade 2 | Rockwell B72 | ASTM A108 | 000000000 | 00000 |
M16 | 4 | 500 | 1 | 1:1 | 4 | Class 7E | Grade 2 | Not Rated | ASTM A108, ASTM A193, DIN 103 | 000000000 | 00000 |
M16 | 4 | 1,000 | 1 | 1:1 | 4 | Class 7E | Grade 2 | Not Rated | ASTM A108, ASTM A193, DIN 103 | 000000000 | 00000 |
M16 | 4 | 2,000 | 1 | 1:1 | 4 | Class 7E | Grade 2 | Rockwell B72 | ASTM A108 | 000000000 | 000000 |
M20 | 4 | 1,000 | 1 | 1:1 | 4 | Class 7E | Grade 2 | Not Rated | ASTM A108, ASTM A193, DIN 103 | 000000000 | 00000 |
M20 | 4 | 2,000 | 1 | 1:1 | 4 | Class 7E | Grade 2 | Rockwell B72 | ASTM A108 | 000000000 | 000000 |
M26 | 5 | 1,000 | 1 | 1:1 | 5 | Class 7E | Grade 2 | Not Rated | ASTM A108, ASTM A193, DIN 103 | 000000000 | 00000 |
M26 | 5 | 2,000 | 1 | 1:1 | 5 | Class 7E | Grade 2 | Rockwell B72 | ASTM A108 | 000000000 | 000000 |
M40 | 7 | 1,000 | 1 | 1:1 | 7 | Class 7E | Grade 2 | Not Rated | ASTM A108, ASTM A193, DIN 103 | 000000000 | 000000 |
M40 | 7 | 2,000 | 1 | 1:1 | 7 | Class 7E | Grade 2 | Rockwell B72 | ASTM A108 | 000000000 | 000000 |
Flange nuts move objects along the length of a lead screw. They have a wide machinable flange for custom mounting.
Flange | ||||||||||||
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Thread Size | Thread Pitch, mm | Ht., mm | Dia., mm | Dia., mm | Thick., mm | No. of Thread Starts | Speed Ratio | Travel Distance per Turn, mm | Thread Fit | Hardness | Each | |
932 Bearing Bronze | ||||||||||||
M10 | 2 | 35 | 28 | 48 | 12 | 1 | 1:1 | 2 | Class 7H | Not Rated | 000000000 | 0000000 |
M12 | 3 | 35 | 28 | 48 | 12 | 1 | 1:1 | 3 | Class 7H | Not Rated | 000000000 | 00000 |
M16 | 4 | 35 | 28 | 48 | 12 | 1 | 1:1 | 4 | Class 7H | Not Rated | 000000000 | 00000 |
M20 | 4 | 44 | 32 | 55 | 12 | 1 | 1:1 | 4 | Class 7H | Not Rated | 000000000 | 00000 |
M26 | 5 | 46 | 38 | 62 | 14 | 1 | 1:1 | 5 | Class 7H | Not Rated | 000000000 | 000000 |
M40 | 7 | 66 | 63 | 98 | 16 | 1 | 1:1 | 7 | Class 7H | Not Rated | 000000000 | 000000 |
Hex nuts fasten and position lead screw components.
Thread Size | Thread Pitch, mm | Ht., mm | Wd., mm | No. of Thread Starts | Speed Ratio | Travel Distance per Turn, mm | Thread Fit | Fastener Strength Grade/Class | Hardness | Each | |
Carbon Steel | |||||||||||
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M12 | 3 | 12 | 22.2 | 1 | 1:1 | 3 | Class 7H | Grade 2 | Not Rated | 000000000 | 000000 |
M16 | 4 | 16 | 27 | 1 | 1:1 | 4 | Class 7H | Grade 2 | Not Rated | 000000000 | 00000 |
M20 | 4 | 20 | 31.75 | 1 | 1:1 | 4 | Class 7H | Grade 2 | Not Rated | 000000000 | 00000 |
M26 | 5 | 25.4 | 41.3 | 1 | 1:1 | 5 | Class 7H | Grade 2 | Not Rated | 000000000 | 00000 |
M40 | 7 | 39.9 | 60.33 | 1 | 1:1 | 7 | Class 7H | Grade 2 | Not Rated | 000000000 | 00000 |
Square nuts fasten and position lead screw components. Square nuts have large sides, which make them easier to grip with a wrench than hex nuts and keep them from rotating in channels and square holes.
Thread Size | Thread Pitch, mm | Ht., mm | Wd., mm | No. of Thread Starts | Speed Ratio | Travel Distance per Turn, mm | Thread Fit | Hardness | Each | |
360 Brass | ||||||||||
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M10 | 2 | 20 | 19 | 1 | 1:1 | 2 | Class 7H | Not Rated | 000000000 | 000000 |
M12 | 3 | 25 | 25 | 1 | 1:1 | 3 | Class 7H | Not Rated | 000000000 | 00000 |
M16 | 4 | 35 | 28 | 1 | 1:1 | 4 | Class 7H | Not Rated | 000000000 | 00000 |
M20 | 4 | 50 | 38 | 1 | 1:1 | 4 | Class 7H | Not Rated | 000000000 | 00000 |
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 | ||||||||||||
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M10 | 2 | 250 | 1 | 1:1 | 2 | ±0.15 mm per 300 mm | Class 8E | Brinell 150 | 85,000 | DIN 103 | 0000000 | 000000 |
M10 | 2 | 500 | 1 | 1:1 | 2 | ±0.15 mm per 300 mm | Class 8E | Brinell 150 | 85,000 | DIN 103 | 0000000 | 00000 |
M10 | 2 | 750 | 1 | 1:1 | 2 | ±0.15 mm per 300 mm | Class 8E | Brinell 150 | 85,000 | DIN 103 | 0000000 | 00000 |
M10 | 2 | 1,750 | 1 | 1:1 | 2 | ±0.15 mm per 300 mm | Class 8E | Brinell 150 | 70,000 | DIN 103 | 000000 | 00000 |
M12 | 3 | 500 | 1 | 1:1 | 3 | ±0.15 mm per 300 mm | Class 8E | Brinell 150 | 85,000 | DIN 103 | 0000000 | 00000 |
M12 | 3 | 1,000 | 1 | 1:1 | 3 | ±0.15 mm per 300 mm | Class 8E | Brinell 150 | 85,000 | DIN 103 | 0000000 | 00000 |
M12 | 3 | 1,750 | 1 | 1:1 | 3 | ±0.15 mm per 300 mm | Class 8E | Brinell 150 | 70,000 | DIN 103 | 000000 | 00000 |
M16 | 3 | 500 | 1 | 1:1 | 3 | ±0.15 mm per 300 mm | Class 8E | Brinell 150 | 85,000 | DIN 103 | 0000000 | 00000 |
M16 | 3 | 1,000 | 1 | 1:1 | 3 | ±0.15 mm per 300 mm | Class 8E | Brinell 150 | 85,000 | DIN 103 | 0000000 | 00000 |
M16 | 3 | 1,750 | 1 | 1:1 | 3 | ±0.15 mm per 300 mm | Class 8E | Brinell 150 | 70,000 | DIN 103 | 000000 | 00000 |
M20 | 4 | 500 | 1 | 1:1 | 4 | ±0.15 mm per 300 mm | Class 8E | Brinell 150 | 85,000 | DIN 103 | 0000000 | 00000 |
M20 | 4 | 1,000 | 1 | 1:1 | 4 | ±0.15 mm per 300 mm | Class 8E | Brinell 150 | 85,000 | DIN 103 | 0000000 | 00000 |
M20 | 4 | 1,750 | 1 | 1:1 | 4 | ±0.15 mm per 300 mm | Class 8E | Brinell 150 | 70,000 | DIN 103 | 000000 | 000000 |
M24 | 5 | 500 | 1 | 1:1 | 5 | ±0.15 mm per 300 mm | Class 8E | Brinell 150 | 85,000 | DIN 103 | 0000000 | 00000 |
M24 | 5 | 1,000 | 1 | 1:1 | 5 | ±0.15 mm per 300 mm | Class 8E | Brinell 150 | 85,000 | DIN 103 | 0000000 | 00000 |
M24 | 5 | 1,750 | 1 | 1:1 | 5 | ±0.15 mm per 300 mm | Class 8E | Brinell 150 | 70,000 | DIN 103 | 000000 | 000000 |
M28 | 5 | 1,000 | 1 | 1:1 | 5 | ±0.15 mm per 300 mm | Class 8E | Brinell 150 | 85,000 | DIN 103 | 0000000 | 00000 |
M28 | 5 | 1,750 | 1 | 1:1 | 5 | ±0.15 mm per 300 mm | Class 8E | Brinell 150 | 85,000 | DIN 103 | 0000000 | 000000 |
M40 | 7 | 1,000 | 1 | 1:1 | 7 | ±0.15 mm per 300 mm | Class 8E | Brinell 150 | 85,000 | DIN 103 | 0000000 | 000000 |
M40 | 7 | 1,750 | 1 | 1:1 | 7 | ±0.15 mm per 300 mm | Class 8E | Brinell 150 | 70,000 | DIN 103 | 0000000 | 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 | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
M10 | 2 | 3/4" | 0.75" | 1 | 1:1 | 2 | Class 8E | Brinell 70 | Not Rated | 670 | DIN 103 | 0000000 | 000000 |
M12 | 3 | 1" | 0.875" | 1 | 1:1 | 3 | Class 8E | Brinell 70 | Not Rated | 1,100 | DIN 103 | 0000000 | 00000 |
M16 | 3 | 1 1/8" | 1.125" | 1 | 1:1 | 3 | Class 8E | Brinell 70 | Not Rated | 2,000 | DIN 103 | 0000000 | 00000 |
M20 | 4 | 1 1/2" | 1.25" | 1 | 1:1 | 4 | Class 8E | Brinell 70 | Not Rated | 3,100 | DIN 103 | 0000000 | 00000 |
M24 | 5 | 2" | 1.75" | 1 | 1:1 | 5 | Class 8E | Brinell 70 | Not Rated | 4,500 | DIN 103 | 0000000 | 00000 |
M28 | 5 | 2" | 1.75" | 1 | 1:1 | 5 | Class 8E | Brinell 69 | 44,000 | 6,100 | DIN 103 | 0000000 | 00000 |
M40 | 7 | 3" | 2.5" | 1 | 1:1 | 7 | Class 8E | Brinell 70 | Not Rated | 12,300 | DIN 103 | 0000000 | 00000 |
External Thread | |||||||||||||||
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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 | |||||||||||||||
M10 | 2 | 5/8" | 0.68" | 1 | 1:1 | 2 | 9/16"-18 | 3/8" | Class 8E | Brinell 126 | 75,000 | 670 | DIN 103 | 0000000 | 000000 |
M12 | 3 | 3/4" | 1.125" | 1 | 1:1 | 3 | 15/16"-16 | 1/2" | Class 8E | Brinell 126 | 75,000 | 1,100 | DIN 103 | 0000000 | 00000 |
M16 | 3 | 1" | 1.125" | 1 | 1:1 | 3 | 15/16"-16 | 1/2" | Class 8E | Brinell 126 | 75,000 | 2,000 | DIN 103 | 0000000 | 00000 |
M20 | 4 | 1 1/4" | 1.125" | 1 | 1:1 | 4 | 1"-18 | 1/2" | Class 8E | Brinell 126 | 75,000 | 3,100 | DIN 103 | 0000000 | 00000 |
M24 | 5 | 1 1/2" | 1.5" | 1 | 1:1 | 5 | 1 3/8"-16 | 1/2" | Class 8E | Brinell 126 | 75,000 | 4,500 | DIN 103 | 0000000 | 000000 |
M28 | 5 | 1 3/4" | 2.125" | 1 | 1:1 | 5 | 1 31/32"-18 | 13/16" | Class 8E | Brinell 126 | 75,000 | 6,100 | DIN 103 | 0000000 | 000000 |
M40 | 7 | 2 19/64" | 2.125" | 1 | 1:1 | 7 | 1 31/32"-18 | 13/16" | Class 8E | Brinell 126 | 75,000 | 12,300 | DIN 103 | 0000000 | 000000 |
Flange | ||||||||||||||||
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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 | ||||||||||||||||
M10 | 2 | 5/8" | 0.688" | 1 39/64" | 13/32" | 1 | 1:1 | 2 | 1 1/8" | Class 8E | Brinell 126 | Not Rated | 670 | DIN 103 | 0000000 | 000000 |
M12 | 3 | 3/4" | 1.125" | 2 39/64" | 17/32" | 1 | 1:1 | 3 | 2 3/32" | Class 8E | Brinell 126 | Not Rated | 1,100 | DIN 103 | 0000000 | 00000 |
M16 | 3 | 1" | 1.125" | 2 39/64" | 17/32" | 1 | 1:1 | 3 | 2 3/32" | Class 8E | Brinell 126 | Not Rated | 2,000 | DIN 103 | 0000000 | 00000 |
M20 | 4 | 1 1/4" | 1.125" | 2 39/64" | 17/32" | 1 | 1:1 | 4 | 2 3/32" | Class 8E | Brinell 126 | Not Rated | 3,100 | DIN 103 | 0000000 | 00000 |
M24 | 5 | 1 1/2" | 1.5" | 2 3/4" | 33/64" | 1 | 1:1 | 5 | 2 17/64" | Class 8E | Brinell 126 | Not Rated | 4,500 | DIN 103 | 0000000 | 00000 |
M28 | 5 | 1 3/4" | 2.125" | 4 13/64" | 53/64" | 1 | 1:1 | 5 | 3 7/16" | Class 8E | Brinell 126 | 75,000 | 6,100 | DIN 103 | 0000000 | 000000 |
M40 | 7 | 2 19/64" | 2.125" | 4 13/64" | 53/64" | 1 | 1:1 | 7 | 3 7/16" | Class 8E | Brinell 126 | Not Rated | 12,300 | DIN 103 | 0000000 | 000000 |
Thread these one-piece collars onto a metric Acme 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 | ||||||||
---|---|---|---|---|---|---|---|---|
M10 | 2 | 24 | 9 | 1 | Black Oxide 1215 Carbon Steel | Brinell 167 | 0000000 | 000000 |
M12 | 3 | 28 | 11 | 1 | Black Oxide 1215 Carbon Steel | Brinell 167 | 0000000 | 00000 |
M16 | 3 | 34 | 13 | 1 | Black Oxide 1215 Carbon Steel | Brinell 167 | 0000000 | 00000 |
M20 | 4 | 40 | 15 | 1 | Black Oxide 1215 Carbon Steel | Brinell 167 | 0000000 | 00000 |
Often paired with spring lock washers to strengthen their hold, these retaining nuts—also known as shaft nuts—keep vibration from shifting bearings, bushings, pulleys, and gears on your threaded shaft or spindle. They have slotted sides, so you can tighten and loosen them with a spanner wrench or spanner socket. Made of carbon steel, they’re strong and wear resistant.
Use stepped-face retaining nuts with DIN 462 spring lock washers. You can also use them in pairs or with other bearing retaining nuts as jam nuts. For the nut closer to the bearing, position the stepped face towards the bearing. All meet DIN standards for bearing lockout dimensions.
Chamfered-face retaining nuts weigh less and produce less heat than stepped-face nuts. They meet ISO 2982 (formerly DIN 981), an international standard for bearing locknut dimensions. Their sizes correspond to SKF KM series. Use them with DIN 5406 spring lock washers.
For technical drawings and 3-D models, click on a part number.
Nuts | ||||||||||
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Thread | Optional Washers | |||||||||
Size | Pitch, mm | Spacing | OD, mm | Wd., mm | Specifications Met | For Lock Washer Specifications Met | Each | Each | ||
Carbon Steel | ||||||||||
Chamfered Face | ||||||||||
M220 | 4 | Extra Fine | 280 | 32 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 0000000 | 000000000 | 0000000 |
M240 | 4 | Extra Fine | 300 | 34 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 000000 | 000000 | 00 |
M260 | 4 | Extra Fine | 330 | 36 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 000000 | 000000 | 00 |
M280 | 4 | Extra Fine | 350 | 38 | DIN 981, ISO 2982 | DIN 5406 | 0000000 | 000000 | 000000 | 00 |