MARYLAND METRICS
THREAD DATA CHARTS

METRIC ELECTRICAL THREAD
FINE PITCH -- (M6x0.75 - M75x1.5)
for EN 50262/EN 60423
threaded fittings

60 deg

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MARYLAND METRICS -- THREAD DATA CHART: Metric Electrical Thread
Fine Pitch (EN 60423 table 1   M6x0.75-M75x1.5) + Some Electrical Industry Proprietary Threads
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
6x0.75 M 6 0.75   5.513   5.188     5.25  
8x1 M 8 1   7.350   6.917     7  
10x1 M 10 1   9.350   8.917     9  
12x1.5 M 12 1.5 0.217 11.026 10.16 10.376 0.92 0.812 10.5 12.5
16x1.5 M 16 1.5 0.217 15.026 14.16 14.376 0.92 0.812 14.5 16.5
20x1.5 M 20 1.5 0.217 19.026 18.16 18.376 0.92 0.812 18.5 20.5
25x1.5 M 25 1.5 0.217 24.026 23.16 23.376 0.92 0.812 23.5 25.5
32x1.5 M 32 1.5 0.217 31.026 30.16 30.376 0.92 0.812 30.5 32.5
40x1.5 M 40 1.5 0.217 39.026 38.16 38.376 0.92 0.812 38.5 40.5
50x1.5 M 50 1.5 0.217 49.026 48.16 48.376 0.92 0.812 48.5 50.5
63x1.5 M 63 1.5 0.217 62.026 61.16 61.376 0.92 0.812 61.5 63.5
75x1.5 M 75 1.5 0.217 74.026 73.16 73.376 0.92 0.812 73.5 75.5
80x2 M 80 2             78 80.5
85x2 M 85 2             83 85.5
90x2 M 90 2             88 90.5
100x2 M 100 2             98 100.5
100x3 M 100 3             97 100.5
110x3 M 110 3             107 110.5

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