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| 美标梯形螺纹环规AMERICAN TRAPEDOIDAL THREAD RING GAGE |
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| STANDARD: FED-STD-H28/12 |
| ART NO. 588 . EG. 588 7/8-6ACME |
| SIZE mm |
THREAD/INCH |
| 1/4-16ACME |
16 |
| 5/16-14ACME |
14 |
| 3/8-12ACME |
12 |
| 7/16-12ACME |
12 |
| 1/2-10ACME |
10 |
| 5/8-8ACME |
8 |
| 3/4-6ACME |
6 |
| 7/8-6ACME |
6 |
| 1-5ACME |
5 |
| 1 1/8-5ACME |
5 |
| 1 1/4-5ACME |
5 |
| 1 3/8-4ACME |
4 |
| 1 1/2-4ACME |
4 |
| 1 3/4-4ACME |
4 |
| 2-4ACME |
4 |
| ...... |
| 6-4ACME |
4 |
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