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常見螺紋不同材料厚度下的預沖孔徑和上﹑下模尺寸如下表所示
常見螺紋不同材料厚度下的預沖孔徑和上﹑下模尺寸如下表所示:
| 
             螺紋規格  | 
            
             材料厚度  | 
            
             抽芽高度  | 
            
             上沖頭(d)  | 
            
             下模(D)  | 
            
             預沖孔(d1)  | 
            
             螺紋規格  | 
            
             材料厚度  | 
            
             抽芽高度  | 
            
             上沖頭(d)  | 
            
             下模(D)  | 
            
             預沖孔  | 
        
| 
             M3  | 
            
             T=0.6  | 
            
             1.5  | 
            
             2.6  | 
            
             3.6  | 
            
             1.4  | 
            
             4#-40  | 
            
             T=0.6  | 
            
             1.9  | 
            
             2.4  | 
            
             3.2  | 
            
             1.2  | 
        
| 
             T=0.8  | 
            
             3.8  | 
            
             1.5  | 
            
             T=0.8  | 
            
             3.4  | 
            
             1.4  | 
        ||||||
| 
             T=1.0  | 
            
             4.0  | 
            
             1.6  | 
            
             T=1.0  | 
            
             3.6  | 
            
             1.5  | 
        ||||||
| 
             T=1.2  | 
            
             4.2  | 
            
             1.7  | 
            
             T=1.2  | 
            
             3.8  | 
            
             1.6  | 
        ||||||
| 
             T=1.5  | 
            
             | 
            
             2.5  | 
            
             T=1.5  | 
            
             4.2  | 
            
             1.8  | 
        ||||||
| 
             M3.5  | 
            
             T=0.6  | 
            
             1.8  | 
            
             3.2  | 
            
             4.0  | 
            
             1.6  | 
            
             6#-32  | 
            
             T=0.6  | 
            
             2.4  | 
            
             3.2  | 
            
             3.8  | 
            
             1.4  | 
        
| 
             T=0.8  | 
            
             4.2  | 
            
             1.8  | 
            
             T=0.8  | 
            
             4.0  | 
            
             1.5  | 
        ||||||
| 
             T=1.0  | 
            
             4.4  | 
            
             2.0  | 
            
             T=1.0  | 
            
             4.2  | 
            
             1.6  | 
        ||||||
| 
             T=1.2  | 
            
             4.6  | 
            
             2.2  | 
            
             T=1.2  | 
            
             4.4  | 
            
             1.8  | 
        ||||||
| 
             T=1.5  | 
            
             4.8  | 
            
             2.4  | 
            
             T=1.5  | 
            
             4.6  | 
            
             2.0  | 
        ||||||
| 
             M4  | 
            
             T=0.6  | 
            
             2.1  | 
            
             3.6  | 
            
             4.2  | 
            
             1.6  | 
            
             8#-32  | 
            
             T=0.6  | 
            
             2.4  | 
            
             3.6  | 
            
             4.6  | 
            
             1.6  | 
        
| 
             T=0.8  | 
            
             4.4  | 
            
             1.8  | 
            
             T=0.8  | 
            
             4.8  | 
            
             1.8  | 
        ||||||
| 
             T=1.0  | 
            
             4.6  | 
            
             2.0  | 
            
             T=1.0  | 
            
             5.0  | 
            
             2.0  | 
        ||||||
| 
             T=1.2  | 
            
             4.8  | 
            
             2.2  | 
            
             T=1.2  | 
            
             5.2  | 
            
             2.2  | 
        ||||||
| 
             T=1.5  | 
            
             5.0  | 
            
             2.4  | 
            
             T=1.5  | 
            
             5.4  | 
            
             2.4  | 
        ||||||
| 
             M5  | 
            
             T=0.6  | 
            
             2.4  | 
            
             4.6  | 
            
             5.6  | 
            
             2.0  | 
            
             | 
            
             | 
            
             | 
            
             | 
            
             | 
            
             | 
        
| 
             T=0.8  | 
            
             5.8  | 
            
             2.2  | 
        |||||||||
| 
             T=1.0  | 
            
             6.0  | 
            
             2.4  | 
        |||||||||
| 
             T=1.2  | 
            
             6.2  | 
            
             2.6  | 
        |||||||||
| 
             T=1.5  | 
            
             6.4  | 
            
             2.8  | 
        
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