Thread Type Thread Type |
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For Shaft Type For Shaft Type |
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 | Acme Lead Screw |
Thread Size Thread Size |
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Component Component |
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 | Collar |
OD OD |
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Material Material |
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Thread Direction Thread Direction |
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 |  |
| Right Hand | Left Hand |
Shaft Mount Type Shaft Mount Type |
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 | Clamp On |
Clamping Screw Material Clamping Screw Material |
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Hardness Hardness |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Clamping Screw Type Clamping Screw Type |
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Finish Finish |
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Clamping Screw Finish Clamping Screw Finish |
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About Shaft Collars
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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Selecting Compatible Lead Screws and Nuts
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Bearing Retaining Nuts
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.
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 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
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 |
Clamping Acme Lead Screw Collars
Thread these one-piece collars onto an Acme lead screw to separate and position components, or use them as an end stop to limit travel. Tighten the clamping screw to secure.
To ensure compatibility, please select a collar that has the same thread type, direction, and size as your lead screw.
Black-oxide carbon steel collars have mild corrosion resistance. 303 stainless steel collars have good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
| Thread Size | OD | Wd. | No. of Thread Starts | Hardness | Each | |
Right-Hand Threaded | ||||||
|---|---|---|---|---|---|---|
Black-Oxide 1215 Carbon Steel | ||||||
| 1/4"-16 | 5/8" | 9/32" | 1 | Brinell 167 | 0000000 | 00000 |
| 3/8"-16 | 7/8" | 11/32" | 1 | Brinell 167 | 0000000 | 0000 |
| 5/8"-10 | 1 5/16" | 7/16" | 1 | Brinell 167 | 0000000 | 00000 |
| 3/4"-10 | 1 1/2" | 1/2" | 1 | Brinell 167 | 0000000 | 00000 |
| 1"-4 | 1 3/4" | 1/2" | 1 | Brinell 167 | 0000000 | 00000 |
| 1"-10 | 1 3/4" | 1/2" | 1 | Brinell 167 | 0000000 | 00000 |
Black-Oxide 12L14 Carbon Steel | ||||||
| 3/8"-12 | 1 1/8" | 1/2" | 1 | Brinell 163 | 0000000 | 00000 |
| 7/16"-12 | 1 1/8" | 1/2" | 1 | Brinell 163 | 0000000 | 00000 |
| 1/2"-10 | 1 5/16" | 1/2" | 1 | Brinell 163 | 0000000 | 00000 |
| 5/8"-8 | 1 5/8" | 1/2" | 1 | Brinell 163 | 0000000 | 00000 |
| 3/4"-6 | 2" | 5/8" | 1 | Brinell 163 | 0000000 | 00000 |
| 7/8"-6 | 2 1/8" | 5/8" | 1 | Brinell 163 | 0000000 | 00000 |
| 1"-5 | 2 1/4" | 5/8" | 1 | Brinell 163 | 0000000 | 00000 |
| 1 1/8"-5 | 2 3/8" | 3/4" | 1 | Brinell 163 | 0000000 | 00000 |
| 1 1/4"-5 | 2 1/2" | 3/4" | 1 | Brinell 163 | 0000000 | 00000 |
| 1 1/2"-4 | 2 3/4" | 3/4" | 1 | Brinell 163 | 0000000 | 00000 |
| 2"-4 | 3 1/2" | 1" | 1 | Brinell 163 | 0000000 | 00000 |
| 2 1/2"-3 | 4" | 1" | 1 | Brinell 163 | 0000000 | 000000 |
303 Stainless Steel | ||||||
| 1/4"-16 | 5/8" | 9/32" | 1 | Brinell 228 | 0000000 | 00000 |
| 3/8"-12 | 7/8" | 11/32" | 1 | Brinell 228 | 0000000 | 00000 |
| 3/8"-16 | 7/8" | 11/32" | 1 | Brinell 228 | 0000000 | 00000 |
| 1/2"-10 | 1 1/8" | 7/16" | 1 | Brinell 228 | 0000000 | 00000 |
| 5/8"-8 | 1 5/16" | 7/16" | 1 | Brinell 228 | 0000000 | 00000 |
| 5/8"-10 | 1 5/16" | 7/16" | 1 | Brinell 228 | 0000000 | 00000 |
| 3/4"-6 | 1 1/2" | 1/2" | 1 | Brinell 228 | 0000000 | 00000 |
| 3/4"-10 | 1 1/2" | 1/2" | 1 | Brinell 228 | 0000000 | 00000 |
| 1"-4 | 1 3/4" | 1/2" | 1 | Brinell 228 | 0000000 | 00000 |
| 1"-5 | 1 3/4" | 1/2" | 1 | Brinell 228 | 0000000 | 00000 |
| 1"-10 | 1 3/4" | 1/2" | 1 | Brinell 228 | 0000000 | 00000 |
Left-Hand Threaded | ||||||
Black-Oxide 12L14 Carbon Steel | ||||||
| 1/2"-10 | 1 5/16" | 1/2" | 1 | Brinell 163 | 0000000 | 00000 |
| 3/4"-6 | 2" | 5/8" | 1 | Brinell 163 | 0000000 | 00000 |
| 1"-5 | 2 1/4" | 5/8" | 1 | Brinell 163 | 0000000 | 00000 |
Two-Piece Clamping Acme Lead Screw Collars
Mount these two-piece collars anywhere on an Acme lead screw without removing components. Use them to separate and position components or as an end stop to limit travel. Tighten the clamping screw to secure.
To ensure compatibility, please select a collar that has the same thread type, direction, and size as your lead screw.
Black-oxide carbon steel collars have mild corrosion resistance.
303 stainless steel collars have good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
| Thread Size | OD | Wd. | No. of Thread Starts | Hardness | Each | |
Right-Hand Threaded | ||||||
|---|---|---|---|---|---|---|
Black-Oxide 1215 Carbon Steel | ||||||
| 1/4"-16 | 5/8" | 9/32" | 1 | Brinell 167 | 0000000 | 000000 |
| 3/8"-16 | 7/8" | 11/32" | 1 | Brinell 167 | 0000000 | 00000 |
| 5/8"-10 | 1 5/16" | 7/16" | 1 | Brinell 167 | 0000000 | 00000 |
| 3/4"-10 | 1 1/2" | 1/2" | 1 | Brinell 167 | 0000000 | 00000 |
| 1"-4 | 1 3/4" | 1/2" | 1 | Brinell 167 | 0000000 | 00000 |
| 1"-10 | 1 3/4" | 1/2" | 1 | Brinell 167 | 0000000 | 00000 |
| 1 1/2"-4 | 2 3/8" | 9/16" | 1 | Brinell 167 | 0000000 | 00000 |
| 1 1/4"-5 | 2 1/16" | 1/2" | 1 | Brinell 167 | 0000000 | 00000 |
Black-Oxide 12L14 Carbon Steel | ||||||
| 3/8"-12 | 1 1/8" | 1/2" | 1 | Brinell 163 | 0000000 | 00000 |
| 1/2"-10 | 1 5/16" | 1/2" | 1 | Brinell 163 | 0000000 | 00000 |
| 5/8"-8 | 1 5/8" | 1/2" | 1 | Brinell 163 | 0000000 | 00000 |
| 3/4"-6 | 2" | 5/8" | 1 | Brinell 163 | 0000000 | 00000 |
| 1"-5 | 2 1/4" | 5/8" | 1 | Brinell 163 | 0000000 | 00000 |
303 Stainless Steel | ||||||
| 1/2"-10 | 1 1/8" | 13/32" | 1 | Brinell 228 | 0000000 | 00000 |
| 3/4"-6 | 1 1/2" | 1/2" | 1 | Brinell 228 | 0000000 | 00000 |
| 1"-5 | 1 3/4" | 1/2" | 1 | Brinell 228 | 0000000 | 00000 |
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 | ||||||||
|---|---|---|---|---|---|---|---|---|
| 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 |