Selecting Compatible Lead Screws and Nuts
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How to Identify and Measure Fittings
Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.
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Low-Pressure Brass and Bronze Threaded Pipe Flanges
- For Use With: Air, Drinking Water, Natural Gas, Oil, Steam, Water
- Pressure Class: 150
- Specifications Met:
NPT: ASME B1.20.1, ASME B16.24, ASTM B584, NSF/ANSI 61
BSPT: ASTM B584, BS21 - Pipe Nipples and Pipe: Use Schedule 40 brass
- Fittings:
NPT: Use Class 125 brass
BSPT: Use Class 125 bronze
Also known as Pressure Class 150 flanges, these are designed for low-pressure applications. Bolt two same-size flanges together with a gasket (sold separately) to create an access point within a line. Flanges have good corrosion resistance. To adhere to safety standards for drinking water systems, use flanges that meet NSF/ANSI 61.
For technical drawings and 3-D models, click on a part number.
Bolt Hole | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Pipe Size | Flange OD | For Bolt Dia. | Dia. | No. of | Bolt Circle Dia. | Max. Pressure | Max. Steam Pressure | Material | Each | |
BSPT | ||||||||||
| 1/2 | 3 1/2" | 1/2" | 5/8" | 4 | 2 3/8" | 200 psi @ 72° F | 125 psi @ 400° F | Bronze | 00000000 | 000000 |
| 3/4 | 3 7/8" | 1/2" | 5/8" | 4 | 2 3/4" | 200 psi @ 72° F | 125 psi @ 400° F | Bronze | 00000000 | 000000 |
| 1 | 4 1/4" | 1/2" | 5/8" | 4 | 3 1/8" | 200 psi @ 72° F | 125 psi @ 400° F | Bronze | 00000000 | 000000 |
| 1 1/2 | 5" | 1/2" | 5/8" | 4 | 3 7/8" | 200 psi @ 72° F | 125 psi @ 400° F | Bronze | 00000000 | 000000 |
| 2 | 6" | 5/8" | 3/4" | 4 | 4 3/4" | 200 psi @ 72° F | 125 psi @ 400° F | Bronze | 00000000 | 000000 |
Brass and Bronze Unthreaded Pipe Flanges
Bolt these flanges to equipment or to another same-size, flat-surface flange with a gasket (sold separately). They have good corrosion resistance.
Socket-connect flanges braze onto unthreaded pipe with a brazing ring (sold separately) for a strong, leak-resistant connection. They are also known as Silbraze flanges.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Natural Gas, Oil, Water, Steam
- Specifications Met: MIL-F-1183
- Pipe Nipples and Pipe: Use Schedule 40 brass
Flanges | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Bolt Hole | Brazing Rings | |||||||||||
| Pipe Size | Flange OD | For Bolt Dia. | Dia. | No. of | Bolt Circle Dia. | Max. Pressure | Max. Steam Pressure | Material | Each | Each | ||
| 1/2 | 3 1/2" | 1/2" | 5/8" | 4 | 2 3/8" | 200 psi @ 72° F | 200 psi @ 425° F | Bronze | 0000000 | 0000000 | 0000000 | 00000 |
| 3/4 | 3 7/8" | 1/2" | 5/8" | 4 | 2 3/4" | 200 psi @ 72° F | 200 psi @ 425° F | Bronze | 0000000 | 000000 | 0000000 | 0000 |
| 1 | 4 1/4" | 1/2" | 5/8" | 4 | 3 1/8" | 200 psi @ 72° F | 200 psi @ 425° F | Bronze | 0000000 | 000000 | 0000000 | 0000 |
| 1 1/2 | 5" | 1/2" | 5/8" | 4 | 3 7/8" | 200 psi @ 72° F | 200 psi @ 425° F | Bronze | 0000000 | 000000 | 0000000 | 0000 |
| 2 | 6" | 5/8" | 3/4" | 4 | 4 3/4" | 200 psi @ 72° F | 200 psi @ 425° F | Bronze | 0000000 | 000000 | 0000000 | 0000 |
Press-Connect Fittings for Copper Tubing
- For Use With: Drinking Water
- Maximum Pressure: 200psi @ 72° F
- Temperature Range: 0° to 250° F
- Tubing: Use with K, M, L copper
- Specifications Met: See table
Crimp these fittings to copper tubing with a crimping tool (sold separately). An O-ring on the inside of the fitting creates a leak-tight connection that doesn’t require heat or soldering. They are comparable to Viega ProPress fittings. Fittings have good corrosion resistance. They meet NSF/ANSI safety standards for use with drinking water systems.
Straight adapters with flanged end bolt to equipment or other flanged connections found on pumps and valves to create a convenient access point.
Copper tube size is the accepted designation of the copper tubing industry, not the actual tube OD.
For technical drawings and 3-D models, click on a part number.
Bolt Hole | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Copper Tube Size | For Tube OD | Pipe Size | Flange OD | Bolt Circle Dia. | Dia. | No. of | For Bolt Dia. | Bolts Included | Lg. | Material | Flange Material | Specifications Met | Each | |
| 1 | 1 1/8" | 1 | 4 21/64" | 3 7/64" | 5/8" | 4 | 1/2" | No | 2 49/64" | Bronze | Powder-Coated Steel | ASME B16.51, ASME B31.1, ASME B31.3, ASME B31.9, NSF/ANSI 61, UL 213 | 00000000 | 0000000 |
| 1 1/4 | 1 3/8" | 1 1/4 | 4 17/32" | 3 1/2" | 5/8" | 4 | 1/2" | No | 2 49/64" | Bronze | Powder-Coated Steel | ASME B16.51, ASME B31.1, ASME B31.3, ASME B31.9, NSF/ANSI 61, UL 213 | 00000000 | 000000 |
| 1 1/2 | 1 5/8" | 1 1/2 | 4 59/64" | 3 55/64" | 5/8" | 4 | 1/2" | No | 3 1/16" | Bronze | Powder-Coated Steel | ASME B16.51, ASME B31.1, ASME B31.3, ASME B31.9, NSF/ANSI 61, UL 213 | 00000000 | 000000 |
| 2 | 2 1/8" | 2 | 5 29/32" | 4 49/64" | 3/4" | 4 | 5/8" | No | 3 21/32" | Bronze | Powder-Coated Steel | ASME B16.51, ASME B31.1, ASME B31.3, ASME B31.9, NSF/ANSI 61, UL 213 | 00000000 | 000000 |
Precision Acme 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, please select components that have the same thread direction, thread size, and number of thread starts.
932 bearing bronze and 673 bronze nuts are wear resistant. They have good machinability and fair 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.
Flange nuts have wide, machinable surfaces for custom mounting.
Flange | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Lg. | Dia. | Dia. | Thick. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn | Thread Fit | Hardness | Tensile Strength, psi | Dynamic Thrust Load Cap., lbs. | Each | |
932 Bearing Bronze | |||||||||||||
| 1/2"-10 | 1 3/4" | 1" | 2" | 3/8" | 1 | 1:1 | 0.1" | Class 2C | Brinell 65 | 35,000 | 1,200 | 000000000 | 0000000 |
| 3/4"-5 | 2 1/4" | 1.375" | 2 5/8" | 9/16" | 1 | 1:1 | 0.2" | Class 2C | Brinell 65 | 35,000 | 2,800 | 000000000 | 000000 |
| 3/4"-6 | 2 1/4" | 1.375" | 2 5/8" | 9/16" | 1 | 1:1 | 0.167" | Class 2C | Brinell 65 | 35,000 | 2,800 | 000000000 | 000000 |
| 3/4"-10 | 2 1/4" | 1.375" | 2 5/8" | 9/16" | 1 | 1:1 | 0.1" | Class 2C | Brinell 65 | 35,000 | 2,800 | 000000000 | 000000 |
| 1"-4 | 3" | 1.625" | 3" | 5/8" | 1 | 1:1 | 0.25" | Class 2C | Brinell 65 | 35,000 | 5,000 | 000000000 | 000000 |
| 1"-5 | 3" | 1.625" | 3" | 5/8" | 1 | 1:1 | 0.2" | Class 2C | Brinell 65 | 35,000 | 5,000 | 000000000 | 000000 |
| 1"-10 | 3" | 1.625" | 3" | 5/8" | 1 | 1:1 | 0.1" | Class 2C | Brinell 65 | 35,000 | 5,000 | 000000000 | 000000 |
| 1 1/4"-5 | 3 3/4" | 1.875" | 3 1/4" | 5/8" | 1 | 1:1 | 0.2" | Class 2C | Brinell 65 | 35,000 | 7,800 | 000000000 | 000000 |
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.
For technical drawings and 3-D models, click on a part number.
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 |
Acme Lead Screws and Nuts
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, thread size, and number of thread starts.
932 bearing bronze components are more wear resistant than brass components. They have good machinability and fair corrosion resistance.
Travel distance per turn, also known as screw lead, is the distance a nut or handle moves with one revolution of the lead screw.
For technical drawings and 3-D models, click on a part number.
Flange nuts move objects along the length of a lead screw. Flange nuts have a wide machinable flange for custom mounting.
Flange | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Ht. | Dia. | Dia. | Thick. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn | Thread Fit | Hardness | Each | |
932 Bearing Bronze | |||||||||||
| 3/8"-12 | 7/8" | 1/2" | 1" | 1/8" | 1 | 1:1 | 0.083" | Class 2G | Not Rated | 000000000 | 0000000 |
| 1/2"-10 | 1" | 3/4" | 1 1/4" | 1/8" | 1 | 1:1 | 0.1" | Class 2G | Not Rated | 000000000 | 000000 |
| 5/8"-8 | 1 1/4" | 7/8" | 1 1/2" | 1/4" | 1 | 1:1 | 0.125" | Class 2G | Not Rated | 000000000 | 000000 |
| 3/4"-5 | 1 1/2" | 1" | 2" | 3/8" | 1 | 1:1 | 0.2" | Class 2G | Not Rated | 000000000 | 000000 |
| 3/4"-6 | 1 1/2" | 1" | 2" | 3/8" | 1 | 1:1 | 0.167" | Class 2G | Not Rated | 000000000 | 000000 |
| 7/8"-6 | 1 3/4" | 1 1/4" | 2 1/4" | 1/2" | 1 | 1:1 | 0.167" | Class 2G | Not Rated | 000000000 | 000000 |
| 1"-4 | 2" | 1 1/2" | 2 1/2" | 1/2" | 1 | 1:1 | 0.25" | Class 2G | Not Rated | 000000000 | 000000 |
| 1"-5 | 2" | 1 1/2" | 2 1/2" | 1/2" | 1 | 1:1 | 0.2" | Class 2G | Not Rated | 000000000 | 000000 |
| 1"-6 | 2" | 1 1/2" | 2 1/2" | 1/2" | 1 | 1:1 | 0.167" | Class 2G | Not Rated | 000000000 | 000000 |
| 1"-10 | 2" | 1 1/2" | 2 1/2" | 1/2" | 1 | 1:1 | 0.1" | Class 2G | Not Rated | 000000000 | 000000 |
| 1 1/8"-5 | 2 1/4" | 1 3/4" | 2 3/4" | 5/8" | 1 | 1:1 | 0.2" | Class 2G | Not Rated | 000000000 | 000000 |
| 1 1/4"-4 | 2 1/2" | 2" | 3" | 3/4" | 1 | 1:1 | 0.25" | Class 2G | Not Rated | 000000000 | 000000 |
| 1 1/4"-5 | 2 1/2" | 2" | 3" | 3/4" | 1 | 1:1 | 0.2" | Class 2G | Not Rated | 000000000 | 000000 |
| 1 1/2"-4 | 3" | 2 1/2" | 3 1/2" | 3/4" | 1 | 1:1 | 0.25" | Class 2G | Not Rated | 000000000 | 000000 |
| 2"-4 | 4" | 3" | 4" | 1" | 1 | 1:1 | 0.25" | Class 2G | Not Rated | 000000000 | 000000 |
Flange nuts move objects along the length of a lead screw. Flange nuts have a wide machinable flange for custom mounting.
Flange | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Ht. | Dia. | Dia. | Thick. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn | Thread Fit | Hardness | Each | |
932 Bearing Bronze | |||||||||||
| 1/2"-10 | 1" | 3/4" | 1 1/4" | 1/8" | 1 | 1:1 | 0.1" | Class 2G | Not Rated | 000000000 | 0000000 |
| 5/8"-8 | 1 1/4" | 7/8" | 1 1/2" | 1/4" | 1 | 1:1 | 0.125" | Class 2G | Not Rated | 000000000 | 000000 |
| 3/4"-5 | 1 1/2" | 1" | 2" | 3/8" | 1 | 1:1 | 0.2" | Class 2G | Not Rated | 000000000 | 000000 |
| 3/4"-6 | 1 1/2" | 1" | 2" | 3/8" | 1 | 1:1 | 0.167" | Class 2G | Not Rated | 000000000 | 000000 |
| 7/8"-6 | 1 3/4" | 1 1/4" | 2 1/4" | 1/2" | 1 | 1:1 | 0.167" | Class 2G | Not Rated | 000000000 | 000000 |
| 1"-5 | 2" | 1 1/2" | 2 1/2" | 1/2" | 1 | 1:1 | 0.2" | Class 2G | Not Rated | 000000000 | 000000 |
| 1"-6 | 2" | 1 1/2" | 2 1/2" | 1/2" | 1 | 1:1 | 0.167" | Class 2G | Not Rated | 000000000 | 000000 |
| 1 1/8"-5 | 2 1/4" | 1 3/4" | 2 3/4" | 5/8" | 1 | 1:1 | 0.2" | Class 2G | Not Rated | 000000000 | 000000 |
| 1 1/4"-4 | 2 1/2" | 2" | 3" | 3/4" | 1 | 1:1 | 0.25" | Class 2G | Not Rated | 000000000 | 000000 |
| 1 1/4"-5 | 2 1/2" | 2" | 3" | 3/4" | 1 | 1:1 | 0.2" | Class 2G | Not Rated | 000000000 | 000000 |
| 1 1/2"-4 | 3" | 2 1/2" | 3 1/2" | 3/4" | 1 | 1:1 | 0.25" | Class 2G | Not Rated | 000000000 | 000000 |
| 2"-4 | 4" | 3" | 4" | 1" | 1 | 1:1 | 0.25" | Class 2G | Not Rated | 000000000 | 000000 |
Metric Lead Screws and Nuts
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, pitch, and number of thread starts. Class 7e and 7H components are compatible.
932 bearing bronze components are more wear resistant than brass components. They have good machinability and fair 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.
Flange nuts move objects along the length of a lead screw. They have a wide machinable flange for custom mounting.
Flange | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 7H | Not Rated | 000000000 | 0000000 |
| M12 | 3 | 35 | 28 | 48 | 12 | 1 | 1:1 | 3 | 7H | Not Rated | 000000000 | 00000 |
| M16 | 4 | 35 | 28 | 48 | 12 | 1 | 1:1 | 4 | 7H | Not Rated | 000000000 | 00000 |
| M20 | 4 | 44 | 32 | 55 | 12 | 1 | 1:1 | 4 | 7H | Not Rated | 000000000 | 000000 |
| M26 | 5 | 46 | 38 | 62 | 14 | 1 | 1:1 | 5 | 7H | Not Rated | 000000000 | 000000 |
| M40 | 7 | 66 | 63 | 98 | 16 | 1 | 1:1 | 7 | 7H | Not Rated | 000000000 | 000000 |