Compare electrical conductivity, machinability, formability, and more to identify the best material for your application.
Selecting Compatible Lead Screws and Nuts
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High-Strength 863 Bearing Bronze Rods
- Yield Strength: 62,000 psi
- Hardness: Rockwell B95 (Medium)
- Temper: M07
- Heat Treatable: No
- Specifications Met: ASTM B505
Frequently called manganese bronze, 863 bronze can handle heavy loads and high speeds when properly lubricated. It is often used for heavy-load bearings, hydraulic cylinder parts, and large valve stems.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
Tight-Tolerance High-Strength 863 Bearing Bronze Bars
- Yield Strength: 62,000 psi
- Hardness: Rockwell B95 (Medium)
- Temper: M07
- Heat Treatable: No
- Specifications Met: ASTM B505
Frequently called manganese bronze, 863 bronze can handle heavy loads and high speeds when properly lubricated. These bars are a higher-strength alternative to tight-tolerance 954 bearing bronze bars. They’re precision ground on the top and bottom for a tight thickness tolerance, saving you the work of machining them.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
| Width | Mechanical Finish | 1/2 ft. Lg. | 1 ft. Lg. | 2 ft. Lg. | 3 ft. Lg. | |
1/2" Thick. (-0.002" to 0.002" Tolerance) | ||||||
|---|---|---|---|---|---|---|
| 1" | Precision Ground | 000000 | ||||
| 1 1/2" | Precision Ground | 000000 | ||||
| 2" | Precision Ground | 000000 | ||||
| 3" | Precision Ground | 000000 | ||||
| 4" | Precision Ground | 000000 | ||||
3/4" Thick. (-0.002" to 0.002" Tolerance) | ||||||
| 3/4" | Precision Ground | 000000 | ||||
| 1" | Precision Ground | 0000000 | ||||
| 1 1/2" | Precision Ground | 0000000 | ||||
| 2" | Precision Ground | 0000000 | ||||
1" Thick. (-0.002" to 0.002" Tolerance) | ||||||
| 1" | Precision Ground | 0000000 | ||||
| 1 1/2" | Precision Ground | 0000000 | ||||
| 2 1/2" | Precision Ground | 0000000 | ||||
| 4" | Precision Ground | 0000000 | ||||
| 5" | Precision Ground | 0000000 | ||||
| 6" | Precision Ground | 0000000 | ||||
High-Strength 863 Bearing Bronze Tubes
- Yield Strength: 62,000 psi
- Hardness: Rockwell B95 (Medium)
- Temper: M07
- Heat Treatable: No
- Specifications Met: ASTM B505
Frequently called manganese bronze, 863 bronze can handle heavy loads and high speeds when properly lubricated. It is often used for heavy-load bearings, hydraulic cylinder parts, and large valve stems.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
| OD | OD Tolerance Range | ID | ID Tolerance Range | Straightness Tolerance | 6" Lg. | 13" Lg. | |
1/4" Wall Thick. | |||||||
|---|---|---|---|---|---|---|---|
| 1 1/2" | 0.0525" to 0.109" | 1" | -0.165" to -0.0505" | 1/4" per 5 ft. | 00000000 | ||
| 2" | 0.0525" to 0.109" | 1 1/2" | -0.165" to -0.0505" | 1/4" per 5 ft. | 00000000 | ||
| 2 1/2" | 0.0525" to 0.109" | 2" | -0.165" to -0.0505" | 1/4" per 5 ft. | 00000000 | ||
1/2" Wall Thick. | |||||||
| 2" | 0.0525" to 0.109" | 1" | -0.165" to -0.0505" | 1/4" per 5 ft. | 00000000 | ||
| 3" | 0.0525" to 0.109" | 2" | -0.165" to -0.0505" | 1/4" per 5 ft. | 00000000 | ||
3/4" Wall Thick. | |||||||
| 2 1/2" | 0.0525" to 0.109" | 1" | -0.165" to -0.0505" | 1/4" per 5 ft. | 00000000 | ||
1" Wall Thick. | |||||||
| 4" | 0.0525" to 0.109" | 2" | -0.165" to -0.0505" | 1/4" per 5 ft. | 00000000 | ||
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.
External Thread | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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" | 7H | Brinell 126 | 75,000 | 670 | DIN 103 | 0000000 | 000000 |
| M12 | 3 | 3/4" | 1.125" | 1 | 1:1 | 3 | 15/16"-16 | 1/2" | 7H | Brinell 126 | 75,000 | 1,100 | DIN 103 | 0000000 | 00000 |
| M16 | 3 | 1" | 1.125" | 1 | 1:1 | 3 | 15/16"-16 | 1/2" | 7H | 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" | 7H | 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" | 7H | 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" | 7H | 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" | 7H | Brinell 126 | 75,000 | 12,300 | DIN 103 | 0000000 | 000000 |
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 |
Valve Wheel Wrenches
Achieve the necessary leverage to turn hand wheels on large valves.
Size | Manganese Bronze | |||
|---|---|---|---|---|
| (A) | (B) | Overall Lg. | Each | |
| 1 3/8" | 1 1/2" | 21 1/2" | 00000000 | 0000000 |
Nonsparking Drum Plug Wrenches
These wrenches inhibit sparking and are corrosion resistant. Also known as bung wrenches, they are used to install and remove screw-in drum plugs.