Unit : mm
  나사의 호칭 (d) H H1 B C (약) D (약) h (약) D1(최소)
보통나사 가는나사
육각너트

(미터나사)		 M2 - 1.6 1.2 4 4.6 3.8 - -
(M2.2) - 1.8 1.4 4.5 5.2 4.3 - -
M2.3 - 1.8 1.4 4.5 5.2 4.3 - -
M2.5 - 2 1.6 5 5.8 4.7 - -
M2.6 - 2 1.6 5 5.8 4.7 - -
M3 x 0.5 - 2.4 1.8 5.5 6.4 5.3 - -
M3.5 - 2.8 2 6 6.9 5.8 - -
M4 x 0.7 - 3.2 2.4 7 8.1 6.8 - -
M4.5 - 3.6 2.8 8 9.2 7.8 - -
M5 x 0.8 - 4 3.2 8 9.2 7.8 0.4 7.2

육각너트

(미터나사)

상

중

보통

M6 - 5 3.6 10 11.5 9.8 0.4 9.0
(M7) - 5.5 4.2 11 12.7 10.8 0.4 10
M8 M8 x 1 6.5 5 13 15.0 12.5 0.4 11.7
M10 M10 x 1.25 8 6 17 19.6 16.5 0.4 15.8
M12 M12 x 1.25 10 7 19 21.9 18 0.6 17.6
(M14) (M14 x 1.5) 11 8 22 25.4 21 0.6 20.4
M16 M16 x 1.5 13 10 24 27.7 23 0.6 22.3
(M18) (M18 x 1.5) 15 11 27 31.2 26 0.6 25.6
M20 M20 x 1.5 16 12 30 34.6 29 0.6 28.5
(M22) (M22 x 1.5) 18 13 32 37.0 31 0.6 30.4
M24 M24 x 2 19 14 36 41.6 34 0.6 34.2
(M27) (M27 x 2) 22 16 41 47.3 39    
M30 M30 x 2 24 18 46 53.1 44    
(M33) (M33 x 2) 26 20 50 57.7 48    
M36 M36 x 3 29 21 55 63.5 53    
(M39) (M39 x 3) 31 23 60 69.3 57    
M42 - 32 25 65 75 62    
(M45) - 36 27 70 80.8 67    
M48 - 38 29 75 86.5 72    
(M52) - 42 31 80 92.4 77    
M56 - 45 34 85 98.1 82    
(M60) - 48 36 90 104 87    
M64 - 51 38 95 110 92    
(M68) - 54 40 100 115 97    
- M72 x 6 58 42 105 121 102    
- (M76 x 6) 61 46 110 127 107    
- M80 x 6 64 48 115 133 112    
- (M85 x 6) 68 50 120 139 116    
- M90 x 6 72 54 130 150 126    
- M95 x 6 76 57 135 156 131    
- M100 x 6 80 60 145 167 141    
- (M105 x 6) 84 63 150 173 146    
- M110 x 6 88 65 155 179 151    
- (M115 x 6) 92 69 165 191 161    
- (M120 x 6) 96 72 170 196 166    
- M125 x 6 100 76 180 208 176    
- (130 x 6) 104 78 185 214 181