|  |  | 
            
                | ねじの呼び | ピッチ P
 | k | s | e |  
                | 基準 寸法
 | 許容差 | 基準 寸法
 | 許容差 | 約 |  
                | M3 | 0.5 | 2 | ±0.1 | 5.5 | 0 -0.2
 | 6.4 |  
                | M4 | 0.7 | 2.8 | ±0.1 | 7 | 0 -0.2
 | 8.1 |  
                | M5 | 0.8 | 3.5 | ±0.15 | 8 | 0 -0.2
 | 9.2 |  
                | M6 | 1.0 | 4 | ±0.15 | 10 | 0 -0.2
 | 11.5 |  
                | M8 | 1.25 | 5.5 | ±0.15 | 13 | 0 -0.25
 | 15 |  
                | M10 | 1.5 | 7 | ±0.2 | 17 | 0 -0.25
 | 19.6 |  
                | M12 | 1.75 | 8 | ±0.2 | 19 | 0 -0.35
 | 21.9 |  
                | (M14) | 2.0 | 9 | ±0.2 | 22 | 0 -0.35
 | 25.4 |  
                | M16 | 2.0 | 10 | ±0.2 | 24 | 0 -0.35
 | 27.7 |  
                | (M18) | 2.5 | 12 | ±0.2 | 27 | 0 -0.35
 | 31.2 |  
                | M20 | 2.5 | 13 | ±0.2 | 30 | 0 -0.35
 | 34.6 |  
                | (M22) | 2.5 | 14 | ±0.2 | 32 | 0 -0.4
 | 37 |  
                | M24 | 3.0 | 15 | ±0.2 | 36 | 0 -0.4
 | 41.6 |  
                | M27 | 3.0 | 17 | ±0.2 | 41 | 0 -0.4
 | 47.3 |  
                | M30 | 3.5 | 19 | ±0.25 | 46 | 0 -0.4
 | 53.1 |  
                | (M33) | 3.5 | 21 | ±0.25 | 50 | 0 -0.4
 | 57.7 |  
                | M36 | 4.0 | 23 | ±0.25 | 55 | 0 -0.45
 | 63.5 |  
                | M42 | 4.5 | 26 | ±0.25 | 65 | 0 -0.45
 | 75 |  |