
| MARYLAND METRICS -- THREAD
DATA CHART: Metric Electrical Thread Fine Pitch (EN 60423 table 1) + Some Electrical Industry Proprietary Threads |
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| Nominal Size ISO MF | Thread Form Type | Major Diameter mm d=D | Pitch mm p | Root Radius mm r | Pitch Diameter mm d2=D2 | Minor Diameter Male Thd. d3 | Minor Diameter Female Thd. D1 | Thread Height Male Thd. h3 | Thread Height Female Thd. H1 | Tap Drill Diameter mm | Clearance Drill Diameter mm |
| 12x1.5 | M | 12.00 | 1.50 | 0.217 | 11.026 | 10.160 | 10.376 | 0.920 | 0.812 | 10.50 | 12.500 |
| 16x1.5 | M | 16.00 | 1.50 | 0.217 | 15.026 | 14.160 | 14.376 | 0.920 | 0.812 | 14.50 | 16.500 |
| 20x1.5 | M | 20.00 | 1.50 | 0.217 | 19.026 | 18.160 | 18.376 | 0.920 | 0.812 | 18.50 | 20.500 |
| 25x1.5 | M | 25.00 | 1.50 | 0.217 | 24.026 | 23.160 | 23.376 | 0.920 | 0.812 | 23.50 | 25.500 |
| 32x1.5 | M | 32.00 | 1.50 | 0.217 | 31.026 | 30.160 | 30.376 | 0.920 | 0.812 | 30.50 | 32.500 |
| 40x1.5 | M | 40.00 | 1.50 | 0.217 | 39.026 | 38.160 | 38.376 | 0.920 | 0.812 | 38.50 | 40.500 |
| 50x1.5 | M | 50.00 | 1.50 | 0.217 | 49.026 | 48.160 | 48.376 | 0.920 | 0.812 | 48.50 | 50.500 |
| 63x1.5 | M | 63.00 | 1.50 | 0.217 | 62.026 | 61.160 | 61.376 | 0.920 | 0.812 | 61.50 | 63.500 |
| 75x1.5 | M | 75.00 | 1.50 | 0.217 | 74.026 | 73.160 | 73.376 | 0.920 | 0.812 | 73.50 | 75.500 |
| 80x2 | M | 80.00 | 2.00 | 78.00 | 80.50 | ||||||
| 85x2 | M | 85.00 | 2.00 | 83.00 | 85.50 | ||||||
| 90x2 | M | 90.00 | 2.00 | 88.00 | 90.50 | ||||||
| 100x2 | M | 100.00 | 2.00 | 98.00 | 100.50 | ||||||
| 100x3 | M | 100.00 | 3.00 | 97.00 | 100.50 | ||||||
| 110x3 | M | 110.00 | 3.00 | 107.00 | 110.50 | ||||||