Selecting Compatible Lead Screws and Nuts
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About Set Screws
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Large-Diameter Swivel-Tip Set Screws
A wide tip provides more gripping power than standard swivel-tip set screws. To use, remove the tip, thread the screw through the hole, and attach the tip on the other side. The tip swivels and tilts in all directions to apply uniform pressure to angled and uneven surfaces. It stops rotating on contact to minimize damage to the contact surface. A black-oxide finish provides corrosion resistance in dry environments. Length listed is the overall length. Optional extra-large steel tips offer more gripping strength. Optional plastic tips are soft, nonmarring, and made of acetal.
Set Screws | Optional Extra-Large Steel Tips | Optional Nonmarring Plastic Tips | Replacement Retaining Springs | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Tip Dia. | Tip Lg. | Max. Swivel Angle | Drive Size | Hardness | Each | Dia. | Lg. | Each | Dia. | Lg. | Each | Each | ||||
Black-Oxide 12L14 Steel | |||||||||||||||||
1/4"-20  | |||||||||||||||||
| 1 7/8" | 0.313" | 0.188" | 10° | 1/8" | Not Rated | 000000000 | 00000 | 5/8" | 7/32" | 000000000 | 00000 | 5/16" | 3/16" | 000000000 | 00000 | 000000000 | 00000 |
| 2 5/8" | 0.313" | 0.188" | 10° | 1/8" | Not Rated | 000000000 | 0000 | 5/8" | 7/32" | 000000000 | 0000 | 5/16" | 3/16" | 000000000 | 0000 | 000000000 | 000 |
| 3 3/8" | 0.313" | 0.188" | 10° | 1/8" | Not Rated | 000000000 | 0000 | 5/8" | 7/32" | 000000000 | 0000 | 5/16" | 3/16" | 000000000 | 0000 | 000000000 | 000 |
5/16"-18 | |||||||||||||||||
| 2 3/16" | 0.375" | 0.219" | 10° | 5/32" | Not Rated | 000000000 | 0000 | 3/4" | 1/4" | 000000000 | 0000 | 3/8" | 7/32" | 000000000 | 0000 | 000000000 | 000 |
| 2 15/16" | 0.375" | 0.219" | 10° | 5/32" | Not Rated | 000000000 | 0000 | 3/4" | 1/4" | 000000000 | 0000 | 3/8" | 7/32" | 000000000 | 0000 | 000000000 | 000 |
| 4 7/16" | 0.375" | 0.219" | 10° | 5/32" | Not Rated | 000000000 | 0000 | 3/4" | 1/4" | 000000000 | 0000 | 3/8" | 7/32" | 000000000 | 0000 | 000000000 | 000 |
3/8"-16 | |||||||||||||||||
| 2 5/16" | 0.438" | 0.25" | 10° | 3/16" | Not Rated | 000000000 | 0000 | 3/4" | 9/32" | 000000000 | 0000 | 7/16" | 1/4" | 000000000 | 0000 | 000000000 | 000 |
| 3 1/16" | 0.438" | 0.25" | 10° | 3/16" | Not Rated | 000000000 | 0000 | 3/4" | 9/32" | 000000000 | 0000 | 7/16" | 1/4" | 000000000 | 0000 | 000000000 | 000 |
| 3 13/16" | 0.438" | 0.25" | 10° | 3/16" | Not Rated | 000000000 | 0000 | 3/4" | 9/32" | 000000000 | 0000 | 7/16" | 1/4" | 000000000 | 0000 | 000000000 | 000 |
| 5 5/16" | 0.438" | 0.25" | 10° | 3/16" | Not Rated | 000000000 | 00000 | 3/4" | 9/32" | 000000000 | 0000 | 7/16" | 1/4" | 000000000 | 0000 | 000000000 | 000 |
1/2"-13 | |||||||||||||||||
| 3 3/16" | 0.563" | 0.313" | 10° | 1/4" | Not Rated | 000000000 | 0000 | 7/8" | 3/8" | 000000000 | 0000 | 9/16" | 5/16" | 000000000 | 0000 | 000000000 | 000 |
| 3 15/16" | 0.563" | 0.313" | 10° | 1/4" | Not Rated | 000000000 | 00000 | 7/8" | 3/8" | 000000000 | 0000 | 9/16" | 5/16" | 000000000 | 0000 | 000000000 | 000 |
| 4 11/16" | 0.563" | 0.313" | 10° | 1/4" | Not Rated | 000000000 | 00000 | 7/8" | 3/8" | 000000000 | 0000 | 9/16" | 5/16" | 000000000 | 0000 | 000000000 | 000 |
| 6 3/16" | 0.563" | 0.313" | 10° | 1/4" | Not Rated | 000000000 | 00000 | 7/8" | 3/8" | 000000000 | 0000 | 9/16" | 5/16" | 000000000 | 0000 | 000000000 | 000 |
5/8"-11 | |||||||||||||||||
| 3 9/16" | 0.688" | 0.406" | 10° | 5/16" | Not Rated | 000000000 | 00000 | 1" | 7/16" | 000000000 | 0000 | 11/16" | 13/32" | 000000000 | 0000 | 000000000 | 000 |
| 5 1/16" | 0.688" | 0.406" | 10° | 5/16" | Not Rated | 000000000 | 00000 | 1" | 7/16" | 000000000 | 0000 | 11/16" | 13/32" | 000000000 | 0000 | 000000000 | 000 |
| 6 9/16" | 0.688" | 0.406" | 10° | 5/16" | Not Rated | 000000000 | 00000 | 1" | 7/16" | 000000000 | 0000 | 11/16" | 13/32" | 000000000 | 0000 | 000000000 | 000 |
Jack Screws
Lock Washer,
and Flat Washers
Secure computer cables and panels. Zinc yellow-chromate plated and zinc-plated finish provide some corrosion resistance.
Thread (A) | Thread (B) | Screws | Screws with Hex Nut, Lock Washer, and Two Flat Washers | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Size | Lg. | Size | Min. Lg. | Lg. | Pkg. Qty. | Pkg. | Pkg. | ||
Zinc Yellow-Chromate Plated 12L14 Steel | |||||||||
3/16" Hex Size | |||||||||
| 4-40 | 3/16" | 4-40 | 0.1" | 3/16" | 25 | 000000000 | 000000 | 000000000 | 000000 |
| 4-40 | 1/4" | 4-40 | 0.1" | 3/16" | 25 | 000000000 | 00000 | 000000000 | 00000 |
| 4-40 | 5/16" | 4-40 | 0.1" | 3/16" | 25 | 000000000 | 00000 | 000000000 | 00000 |
| 4-40 | 3/8" | 4-40 | 0.1" | 3/16" | 25 | 000000000 | 00000 | 000000000 | 00000 |
| 4-40 | 7/16" | 4-40 | 0.1" | 3/16" | 25 | 000000000 | 00000 | 000000000 | 00000 |
| 4-40 | 1/2" | 4-40 | 0.1" | 3/16" | 10 | 000000000 | 0000 | 000000000 | 00000 |
| 4-40 | 9/16" | 4-40 | 0.1" | 3/16" | 10 | 000000000 | 0000 | 000000000 | 00000 |
| 4-40 | 5/8" | 4-40 | 0.1" | 3/16" | 10 | 000000000 | 0000 | 000000000 | 00000 |
Zinc-Plated 12L14 Steel | |||||||||
3/16" Hex Size | |||||||||
| 4-40 | 1/8" | 4-40 | 0.1" | 3/16" | 25 | 000000000 | 00000 | 000000000 | 00000 |
| 4-40 | 3/4" | 4-40 | 0.1" | 3/16" | 10 | 000000000 | 00000 | 000000000 | 00000 |
| 4-40 | 7/8" | 4-40 | 0.1" | 3/16" | 10 | 000000000 | 00000 | 000000000 | 00000 |
| 4-40 | 1" | 4-40 | 0.1" | 3/16" | 10 | 000000000 | 00000 | 000000000 | 00000 |
Metric Precision Lead Screws and Nuts
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 direction, size, pitch, and number of thread starts.
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.
Flange | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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" | 7H | 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" | 7H | 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" | 7H | 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" | 7H | 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" | 7H | 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" | 7H | 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" | 7H | Brinell 126 | Not Rated | 12,300 | DIN 103 | 0000000 | 000000 |
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, size, and number of thread starts as your lead screw.
Black-oxide carbon steel collars have mild corrosion resistance.
| Thread Size | OD | Wd. | No. of Thread Starts | Hardness | Each | |
Right-Hand Threaded | ||||||
|---|---|---|---|---|---|---|
Black-Oxide 12L14 Carbon Steel | ||||||
| 3/8"-12 | 1 1/8" | 1/2" | 1 | Brinell 163 | 0000000 | 000000 |
| 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 |
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, size, and number of thread starts as your lead screw.
Black-oxide carbon steel collars have mild corrosion resistance.