- Thread pitch is stamped on each gage.
- Metric, Unified, and Whitworth screw pitch gages.
Specifications:
| Order No. | Range | Composition of leaves |
| 188-130 | 0.35 – 6 (mm) | 22 leaves: 0.35, 0.4, 0.45, 0.5, 0.6, 0.7, 0.75, 0.8, 1. 1.25, 1.75, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6 mm and 60o angle gage. |
| 188-122 | 0.4 – 7 (mm) | 21 leaves: 0.4, 0.5, 0.7, 0.75, 0.8, 0.9, 1, 1.25, 1.5, 1.75, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7 mm |
| 188-121 | 0.4 – 7 (mm) | 18 leaves: 0.4, 0.5, 0.75, 1, 1.25, 1.5, 175, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7 mm |
| 188-111 | 0.4 – 7 TPI | 30 leaves: 4, 41/2, 5, 51/2, 6, 7, 8, 9, 10, 111/2, 12, 13, 14, 15, 16, 18, 20, 22, 24, 26, 27, 28, 30, 32, 34, 36, 38, 40, 42 TPI |
| 188-151 | 0.4 – 7 mm/4- 42 TPI | 51 leaves: Set of 188-122 and 188-111 |
| 188-101 | 4 – 42 TPI | 30 leaves: 4, 41/2, 5, 51/2, 6, 7, 8, 9, 10, 11, 111/2, 12, 13, 14, 15, 16, 18, 20, 22, 24, 26, 27, 28, 30, 32, 34, 36, 38, 40, 42 TPI |
| 188-102 | 4 – 60 TPI | 28 leaves: 4, 41/2, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 18, 19, 20, 22, 24, 25, 26, 28, 30, 32, 34, 36, 40, 48, 60 TPI |
