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規(guī)格

總長(zhǎng)

螺紋長(zhǎng)

鉆頭長(zhǎng)

鉆頭尺寸

Size

Overall Length

Thread Lenght

Drill Lenght

Drill Size

4-40NC

1-7/8

9/16

1/4

0.0890

4-48NF

1-7/8

9/16

1/4

0.0930

5-40NC

1-15/16

5/8

9/32

0.1015

5-44NF

1-15/16

5/8

9/32

0.1040

6-32NC

2

11/16

5/16

0.1095

6-40NF

2

11/16

5/16

0.1150

8-32NC

2-1/8

3/4

3/8

0.1360

8-36NF

2-1/8

3/4

3/8

0.1385

10-24NC

2-3/8

7/8

13/32

0.1520

10-32NF

2-3/8

7/8

13/32

0.1610

12-24NC

2-3/8

7/8

15/32

0.1770

12-28NF

2-3/8

7/8

15/32

0.1835

1/4-20NC

2-1/2

15/16

17/32

0.2010

1/4-28NF

2-1/2

15/16

17/32

0.2175

5/16-18NC

3

1-1/8

11/16

0.2570

5/16-24NF

3

1-1/8

11/16

0.2720

3/8-16NC

3-1/2

1-1/4

13/16

0.3125

3/8-24NF

3-1/2

1-1/4

13/16

0.3345

7/16-14NC

3-7/8

1-7/16

1

0.3680

7/16-20NF

3-7/8

1-7/16

1

0.3890

1/2-13NC

4-1/4

1-21/32

1-1/8

0.4250

1/2-20NF

4-1/4

1-21/32

1-1/8

0.4510