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Wednesday, 09 November 2011 14:33

Metric Threads

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DIAMETER THREAD PITCH DRILL SIZE FOR TAPPING
- Fine Coarse Fine Coarse
M1 - .25 - .75
M1.4 - .3 - 1.1
M2 - .35 - 1.5
M2.2 - .45 - 1.7
M3 - .5 - 2.0
M3.5 - .6 - 2.9
M4 - .7 - 3.3
M5 - .8 - 4.2
M6 - 1.0 - 5.0
M7 - 1.0 - 6.0
M8 1.0 1.25 7.0 6.8
M10 (1.0), 1.25 1.5 (9.0), 8.8 8.5
*M11 1.0 1.5 10.0 9.5
M12 1.25, (1.5) 1.75 10.8, (10.5) 10.2
M14 1.5 2.0 12.5 12.0
M16 1.5 2.0 14.5 14.0
M18 1.5 2.0 16.5 15.5
M20 1.5 2.51 8.5 17.5
M22 1.5 2.5 20.5 19.5
M24 2.0 3.0 22.0 21.0
*M25 1.5 - 23.5 -
*M26 1.5 - 24.5 -
M27 2.0 3.0 25.0 24.0
*M28 2.0 - 26.0 -
M30 2.0 3.5 28.0 26.5
M33 2.0 3.5 31.0 31.0
M36 3.0 4.0 33.0 32.0
M39 3.0 4.0 36.0 35.0
M42 3.0 4.5 39.0 37.5
M45 3.0 4.5 42.0 40.5
M48 3.0 5.0 45.0 43.0
M52 3.0 5.0 49.0 47.0
M56 4.0 5.5 52.0 50.5
M60 4.0 5.5 56.0 54.5
M64 4.0 6.0 60.0 58.0
M68 4.0 6.0 64.0 62.0
M72 6.0 - 66.0 -
M76 6.0 - 70.0 -
M80 6.0 - 74.0 -
M1 - .25 - .75
*NOT RECOMMENDED FOR FASTENERS
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