钻铤螺纹
型 号
|
外径D
|
内径d
|
长度L
mm
|
台肩
倒角
直径
Df
mm
|
参考的弯曲强度比
|
mm
|
in
|
mm
|
in
|
NC31-41(27/8IF)
|
104.8
|
4 1/8
|
50.8
|
2
|
9150
|
100.4
|
2.43:1
|
NC35-47
|
120.7
|
4 3/4
|
50.8
|
2
|
9150
|
114.7
|
2.58:1
|
NC38-50(31/2IF)
|
127.0
|
5
|
57.2
|
2 1/4
|
9150
|
121.0
|
2.38:1
|
NC44-60
|
152.4
|
6
|
57.2
|
2 1/4
|
9150或9450
|
144.5
|
2.49:1
|
NC44-60
|
152.4
|
6
|
71.4
|
2 13/16
|
9150或9450
|
144.5
|
2.84:1
|
NC44-62
|
158.8
|
61/4
|
57.2
|
2 1/4
|
9150或9450
|
149.2
|
2.91:1
|
NC46-62(4IF)
|
158.8
|
61/4
|
71.4
|
2 13/16
|
9150或9450
|
150.0
|
2.63:1
|
NC46-65(4IF)
|
165.1
|
61/2
|
57.2
|
2 1/4
|
9150或9450
|
154.8
|
2.76:1
|
NC46-65(4IF)
|
165.1
|
61/2
|
71.4
|
2 13/16
|
9150或9450
|
154.8
|
3.05:1
|
NC46-67(4IF)
|
171.4
|
63/4
|
57.2
|
2 1/4
|
9150或9450
|
159.5
|
3.18:1
|
NC50-67(41/2IF)
|
171.4
|
63/4
|
71.4
|
2 13/16
|
9150或9450
|
159.5
|
2.37:1
|
NC50-70(41/2IF)
|
177.8
|
7
|
57.2
|
2 1/4
|
9150或9450
|
164.7
|
2.54:1
|
NC50-70(41/2IF)
|
177.8
|
7
|
71.4
|
2 13/16
|
9150或9450
|
164.7
|
2.73:1
|
NC50-72(41/2IF)
|
184.2
|
71/4
|
71.4
|
2 13/16
|
9150或9450
|
169.5
|
3.12:1
|
NC56-77
|
196.8
|
73/4
|
71.4
|
2 13/16
|
9150或9450
|
185.3
|
2.70:1
|
NC56-80
|
203.2
|
8
|
71.4
|
2 13/16
|
9150或9450
|
190.1
|
3.02:1
|
65/xREG″
|
209.6
|
81/4
|
71.4
|
2 13/16
|
9150或9450
|
195.7
|
2.93:1
|
NC61-90
|
228.6
|
9
|
71.4
|
2 13/16
|
9150或9450
|
212.7
|
3.17:1
|
|