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Cold Formed
| BLANK | UNC UNF |
e | h | D | g | m | |
| AA | 4-40 5-40 6-32 |
Min Max |
16.00 17.80 |
8.60 9.80 |
7.40 8.20 |
2.00 2.40 |
2.80 3.20 |
| A | 8-32 10-24 10-32 |
Min Max |
21.00 23.00 |
9.70 11.30 |
9.90 10.90 |
2.70 3.30 |
3.90 4.50 |
| B | 1/4 | Min Max |
24.80 26.80 |
11.60 13.60 |
11.50 12.50 |
3.60 4.10 |
4.50 5.10 |
| C | 5/16 | Min Max |
29.30 31.30 |
14.00 16.00 |
13.30 14.30 |
4.45 4.95 |
5.70 6.30 |
| D | 3/8 | Min Max |
33.50 35.50 |
16.50 18.50 |
16.30 17.50 |
5.10 5.70 |
6.60 7.20 |
| E | 1/2 | Min Max |
46.00 49.30 |
22.10 25.40 |
21.90 23.60 |
6.60 8.30 |
8.80 9.90 |
| F | 5/8 | Min Max |
66.70 70.10 |
33.30 36.50 |
28.70 30.10 |
8.70 10.10 |
13.00 14.00 |
Materials
Steel (Fe) – Brass (OT 63) – Stainless Steel AISI 304 (A2) – Stainless Steel AISI 316 (A4) – Aluminium
Tolerances
American Standard Thread class 2B
Dimensions
Unquoted parts in this document are not binding. Gamma Officine Meccaniche S.p.A. reserves the possibility to change, modify or eliminate products or dimensions without prior notice.
Notes
Different threading can be performed on the same blank. For example: Blank “B” threaded “8-32″ or Blank “E” threaded “5/16″.
