TONY's Homepage
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無溝絲攻鉆孔徑
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規格
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精度等級
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G4 - G6
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G7 - G8
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G9
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M1.0 x 0.25
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0.86
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0.88
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---------
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M1.1 x 0.25
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0.96
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0.98
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M1.2 x 0.25
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1.06
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1.08
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M1.4 x 0.30
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1.24
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1.25
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M1.6 x 0.35
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1.41
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1.43
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M1.7 x 0.35
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1.51
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1.53
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M1.8 x 0.35
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1.61
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1.63
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M2.0 x 0.40
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1.78
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1.80
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M2.2 x 0.45
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1.95
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1.98
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M2.3 x 0.40
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2.08
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2.10
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M2.5 x 0.45
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2.25
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2.28
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M2.6 x 0.45
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2.35
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2.38
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M3.0 x 0.50
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2.73
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2.75
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M3.5 x 0.60
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3.17
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3.20
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M4.0 x 0.70
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3.62
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3.65
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3.69
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M5.0 x 0.80
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4.56
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4.60
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4.64
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M6.0 x 1.0
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5.45
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5.50
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5.55
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M7.0 x 1.0
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6.45
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6.50
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6.55
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M8.0 x 1.25
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7.31
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7.38
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7.44
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M10 x 1.5
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9.18
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9.25
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9.32
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M10 x 1.25
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9.31
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9.38
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9.44
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M12 x 1.75
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11.04
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11.12
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11.22
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M12 x 1.5
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11.31
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11.38
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11.44
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註：無糟溝絲攻之鉆孔徑，在上表所列之數值，由於被加工材料之材質、硬度、形狀、尺寸等之影響，多少會有所變動，因此於參考上表之同時，亦請增減若干。
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無溝絲攻鉆孔徑
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規格
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精度等級
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G4 - G6
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G7 - G8
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G9
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No. 2 ---
56 UNC
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1.94
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---------
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No. 3 ---
48
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2.23
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---------
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No. 4 ---
40
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2.50
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---------
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No. 5 ---
40
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2.83
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---------
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No. 6 ---
32
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3.07
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---------
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---------
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No. 8 ---
32
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3.73
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3.77
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---------
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No. 10 ---
24
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4.24
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4.30
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---------
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No. 12 ---
24
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4.90
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4.96
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---------
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1/4 --- 20
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---------
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5.72
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---------
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5/16 --- 18
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---------
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7.24
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---------
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3/8 --- 16
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---------
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8.74
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8.81
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7/16 --- 14
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10.20
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10.30
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1/2 --- 13
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11.27
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11.82
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No. 2 ---
64 UNF
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1.97
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---------
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No. 3 ---
56
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2.27
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No. 4 ---
48
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2.56
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---------
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No. 5 ---
44
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2.86
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---------
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---------
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No. 6 ---
40
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3.16
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---------
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No. 8 ---
36
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3.78
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---------
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---------
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No. 10 ---
32
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4.39
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4.43
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---------
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No. 12 ---
28
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4.99
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5.04
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---------
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1/4 --- 28
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5.85
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5.90
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5/16 --- 24
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7.36
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7.41
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---------
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3/8 --- 24
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9.00
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---------
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7/16 --- 20
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10.48
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10.54
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1/2 --- 20
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---------
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12.07
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12.13
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針車用螺紋
規格
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滾造徑
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SM 1/8 --- 40
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2.735 --- 2.688
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SM 1/8 --- 44
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2.769 --- 2.722
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SM 9/64 --- 40
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3.128 --- 3.083
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SM 11/64 --- 40
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3.855 --- 3.805
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SM 3/16 --- 32
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4.205 --- 4.155
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SM 3/16 --- 28
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4.143 --- 4.093
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SM 7/32 --- 32
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5.003 --- 4.955
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SM 15/64 --- 28
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5.325 --- 5.570
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SM 1/4 --- 40
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5.890 --- 5.735
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SM 1/4 --- 28
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5.721 --- 5.366
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SM 9/32 --- 28
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6.508 --- 6.648
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SM 11/32 --- 28
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8.092 --- 8.432
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SM 3/8 --- 28
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8.880 --- 8.015
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SM 7/16 --- 28
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10.466 --- 10.401
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SM 7/16 --- 16
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10.037 --- 9.967
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SM 1/2 --- 20
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11.819 --- 11.749
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SM 9/16 --- 20
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13.400 --- 13.425
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