Threading |
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Roll Thread
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Process
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Material is rolled upwards into thread die creating a thread diameter larger than the blank diameter. For a table showing common roll threading diameters click here.
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Cost Savings
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Using undersized wire saves material cost and freight. The rolling process is also much faster thereby saving labor expense.
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Increased Strength
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Rolled threads are stronger than cut threads due to mechanical work hardening and grain orientation.
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Cut Thread
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Cut threads begin with wire with the same diameter as the thread. Material is cut away leaving behind the thread shape.
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Common Roll Threading Blank Diameters
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| BLANK DIA |
THREAD SIZE |
| .465 |
1/2 - 20 |
| .447 |
1/2 - 13 |
| .403 |
7/16 - 20 |
| .390 |
7/16 - 14 |
| .346 |
3/8 - 24 |
| .331 |
3/8 - 16 |
| .283 |
5/16 - 24 |
| .274 |
5/16 - 18 |
| .225 |
1/4 - 28 |
| .212 |
1/4-20
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.192
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#12-28
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.187
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#12-24
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.168
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#10-32
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.162
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#10-24
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.142
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#8-32
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.116
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#6-32
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.108
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#5-40
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.093
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#4-40
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| ERISCO INDUSTRIES, INC. |
| 1133 West 18th Street, Erie, PA 16502 |
| Phone: (814) 459-2720 • Fax: (814) 455-3751 |
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