System of Measurement System of Measurement |
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Thread Size Thread Size |
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Thread Type Thread Type |
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Component Component |
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 | Collar |
Construction Construction |
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 | One Piece |
Material Material |
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Thread Direction Thread Direction |
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| Right Hand | Left Hand |
For Shaft Type For Shaft Type |
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 | Acme Lead Screw |
Clamping Screw Material Clamping Screw Material |
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Shaft Mount Type Shaft Mount Type |
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 | Clamp On |
Number of Thread Starts Number of Thread Starts |
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Hardness Hardness |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Number of Clamping Screws Included Number of ClampingScrews Included |
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Finish Finish |
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Selecting Compatible Lead Screws and Nuts
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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 | Material | Hardness | Each | |
Right-Hand Threaded | |||||||
|---|---|---|---|---|---|---|---|
| 1/4"-16 | 5/8" | 5/16" | 1 | Black Oxide 1215 Carbon Steel | Brinell 167 | 0000000 | 00000 |
| 3/8"-12 | 1 1/8" | 1/2" | 1 | Black Oxide 12L14 Carbon Steel | Brinell 163 | 0000000 | 00000 |
| 3/8"-16 | 7/8" | 3/8" | 1 | Black Oxide 1215 Carbon Steel | Brinell 167 | 0000000 | 0000 |
| 7/16"-12 | 1 1/8" | 1/2" | 1 | Black Oxide 12L14 Carbon Steel | Brinell 163 | 0000000 | 00000 |
| 1/2"-10 | 1 1/8" | 7/16" | 1 | 303 Stainless Steel | Brinell 228 | 0000000 | 00000 |
| 1/2"-10 | 1 5/16" | 1/2" | 1 | Black Oxide 12L14 Carbon Steel | Brinell 163 | 0000000 | 00000 |
| 5/8"-8 | 1 5/16" | 7/16" | 1 | 303 Stainless Steel | Brinell 228 | 0000000 | 00000 |
| 5/8"-8 | 1 5/8" | 1/2" | 1 | Black Oxide 12L14 Carbon Steel | Brinell 163 | 0000000 | 00000 |
| 5/8"-10 | 1 5/16" | 7/16" | 1 | Black Oxide 1215 Carbon Steel | Brinell 167 | 0000000 | 00000 |
| 3/4"-6 | 1 1/2" | 1/2" | 1 | 303 Stainless Steel | Brinell 228 | 0000000 | 00000 |
| 3/4"-6 | 2" | 5/8" | 1 | Black Oxide 12L14 Carbon Steel | Brinell 163 | 0000000 | 00000 |
| 3/4"-10 | 1 1/2" | 1/2" | 1 | Black Oxide 1215 Carbon Steel | Brinell 167 | 0000000 | 00000 |
| 3/4"-10 | 1 1/2" | 1/2" | 1 | 303 Stainless Steel | Brinell 228 | 0000000 | 00000 |
| 7/8"-6 | 2 1/8" | 5/8" | 1 | Black Oxide 12L14 Carbon Steel | Brinell 163 | 0000000 | 00000 |
| 1"-4 | 1 3/4" | 1/2" | 1 | Black Oxide 1215 Carbon Steel | Brinell 167 | 0000000 | 00000 |
| 1"-5 | 1 3/4" | 1/2" | 1 | 303 Stainless Steel | Brinell 228 | 0000000 | 00000 |
| 1"-5 | 2 1/4" | 5/8" | 1 | Black Oxide 12L14 Carbon Steel | Brinell 163 | 0000000 | 00000 |
| 1"-10 | 1 3/4" | 1/2" | 1 | Black Oxide 1215 Carbon Steel | Brinell 167 | 0000000 | 00000 |
| 1 1/8"-5 | 2 3/8" | 3/4" | 1 | Black Oxide 12L14 Carbon Steel | Brinell 163 | 0000000 | 00000 |
| 1 1/4"-5 | 2 1/2" | 3/4" | 1 | Black Oxide 12L14 Carbon Steel | Brinell 163 | 0000000 | 00000 |
| 1 1/2"-4 | 2 3/4" | 3/4" | 1 | Black Oxide 12L14 Carbon Steel | Brinell 163 | 0000000 | 00000 |
| 2"-4 | 3 1/2" | 1" | 1 | Black Oxide 12L14 Carbon Steel | Brinell 163 | 0000000 | 00000 |
| 2 1/2"-3 | 4" | 1" | 1 | Black Oxide 12L14 Carbon Steel | Brinell 163 | 0000000 | 00000 |
Left-Hand Threaded | |||||||
| 1/2"-10 | 1 5/16" | 1/2" | 1 | Black Oxide 12L14 Carbon Steel | Brinell 163 | 0000000 | 00000 |
| 3/4"-6 | 2" | 5/8" | 1 | Black Oxide 12L14 Carbon Steel | Brinell 163 | 0000000 | 00000 |
| 1"-5 | 2 1/4" | 5/8" | 1 | Black Oxide 12L14 Carbon Steel | Brinell 163 | 0000000 | 00000 |