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Date Published:Jun. 18. 2015 Date Updated:Jan. 27. 2025

Hexagon Nuts

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Hexagon Nuts

Hexagon nut shape and dimension

Degree of finishing: Medium (Degree of finishing for below M6: High)

Unit : mm
Nominal diameter of thread（d）
 m  m1  s  e  φdw・φdk' 
Coarse  Fine  Basic Dimension Allowance Basic Dimension Allowance Basic Dimension Allowance About About
M2   -   1.6  0
-0.25		   1.2  0
-0.25		   4  0
-0.2		   4.6   3.8
M2.5   -   2   1.6   5   5.8   4.7
M3  -   2.4   1.8   5.5   6.4   5.3
(M3.5)  -   2.8   2   6   6.9   5.8
M4  -   3.2  0
-0.30		   2.4   7   8.1   6.8
M5  -   4   3.2  0
-0.3		   8   9.2   7.8
M6  -   5  0
-0.48		   3.6  0
-0.48		 10  0
-0.6		 11.5   9.8
(M7)  -   5.5   4.2 11  0
-0.7		 12.7 10.8
M8 M8×1    6.5  0
-0.58		   5 13 15 12.5
M10 M10×1.25   8   6 17 19.6 16.5
M12 M12×1.25 10   7  0
-0.58		 19   0
-0.8		 21.9 18
(M14) (M14×1.5) 11  0
-0.70		   8 22 25.4 21
M16 M16×1.5  13 10 24 27.7 23
(M18) (M18×1.5) 15 11  0
-0.70		 27 31.2 26
M20 M20×1.5  16 12 30 34.6 29
(M22) (M22×1.5) 18 13 32   0
-1.0		 37 31
M24 M24×2 19   0
-0.84		 14 36 41.6 34
(M27) (M27×2) 22 16 41 47.3 39
M30 M30×2 24 18 46 53.1 44
(M33) (M33×2)  26 20  0
-0.84		 50 57.7 48
M36 M36×3  29 21 55  0
-1.2		 63.5 53
(M39) (M39×3)  31  0
-1.0		 23 60 69.3 57
M42   34 25 65 75 62
M45   36 27 70 80.8 67
M48   38 29 75 86.5 72
(M52)   42 31  0
-1.0		 80 92.4 77
M56   45 34 85  0
-1.4		 98.1 82
(M60)   48 36 90 104 87
M64   51  0
-1.2		 38 95 110 92

Remark: Avoid using those with any nominal diameter of screw in parentheses as long as possible.



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