JIS General Tap Dimensions
Spiral Pointed and Spiral Fluted, JIS (Table 350)
General Dimensions (Metric)
Pitch Diameter Limit
Ground Thread Limits Class
Diameter Pitch
Overall Length A
Length of Thread B
Length of Square C
Size of Square E
Shank Diam. D
Basic
Min.
Max.
M2
0.4 0.4 0.5 0.6 0.7 0.45 0.75
40 42 44 46 48 52 55 60 62 62 65 62 70 70 72 70 75 75 80 70 80 82 82 80 88 88 75 95 95 95 95
15 15 16 18 18 20 20 22 20 24 20 30 30 30 6 30 32 32 38 30 38 38 38 38 42 42 30 45 45 45 45 48 45 48 45 55 45 58 45 62 45 45 65 45 45 45 45
5 5 5 6 6 7 7 7 7 7 8 8 8 8 8 8 8 8 9 9 9 9 9
3 3 3 4 4 5 5 6 6
2.5 2.5 2.5 3.2 3.2
2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2
1.740 2.040 2.308 2.675 3.110 3.545 4.013 4.480 5.513 5.350 6.350 7.513 7.350 7.188 8.188 9.350 9.188 9.026
1.750 2.050 2.318 2.685 3.120 3.555 4.023 4.490 5.523 5.360 6.360 7.525 7.360 7.198 8.198 9.362 9.198 9.041
1.770 2.070 2.333 2.700 3.135 3.575 4.043 4.510 5.543 5.380 6.380 7.550 7.380 7.223 8.223 9.387 9.223 9.066
M2.3 M2.6
M3
M3.5
M4
4 4
M4.5
M5 M6 M7
0.8
5.5
4.5 4.5 4.5
0.75
1 1
6.2 6.2 6.2 6.2
5 5 5 5
0.75
M8
1
1.25 1.25
M9
7 7 7 7 8
5.5 5.5 5.5 5.5 6.5 6.5 6.5 6.5 6
1
M10
1.25
1.5 1.5
M11
10.026 11.350 11.188 11.026 10.863 13.188 13.026 12.701 15.350 15.026 14.701 17.026 16.701 16.376 19.026 18.376 21.026 20.376 23.026 22.051 25.026 24.051 27.026 29.026 27.727 31.026 32.026 33.026 35.026
10.041 11.365 11.203 11.041 10.878 13.203 13.041 12.716 15.365 15.041 14.716 17.041 16.716 16.396 19.041 19.396 21.041 20.396 23.041 22.071 25.041 24.071 27.041 29.041 27.747 31.041 32.041 33.041 35.041
10.066 11.395 11.233 11.071 10.908 13.233 13.071 12.746 15.395 15.071 14.746 17.071 16.751 16.431 19.076 18.431 21.076 20.431 23.076 22.111 25.076 24.076 27.076 29.076 27.787 31.076 32.076 33.076 35.076
1
8.5 8.5 8.5 8.5
1.25
M12
1.5
1.75 1.25
11 11 11 13 13 13 14 14 14 15 15 16 16 18 18 18 18 20 20 20 22 22 24 24
10.5 10.5 10.5 12.5 12.5 12.5
8 8 8
M14
1.5
2 1
10 10 10 11 11 11 12 12 13 13 15 15 15 15 17 17 17 19 19 21 21
M16
1.5
2
1.5
14 14 14 15 15 17 17 19 19 20 20 21 23 23 24 25 26 28
M18
2
2.5 1.5 2.5 1.5 2.5 1.5
100
95
M20
100
95
M22
115
95
M24
3
120
1.5
95
M26 M28 M30 M32 M33 M34 M36
3
130 105 105 135 105 110 110 110
1.5 1.5 3.5 1.5 1.5 1.5 1.5
Note: Dimensions are in millimeters
Threading Technical
764
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