英制粗纹(BSW)螺纹护套规格表：(1)

螺纹规格

长度K

螺套圈数 N

钻孔直径A

螺套外径D

k×d

mm

N

mm

公差mm

mm

1d

0.250/ 6.4

3.9

1/4-20.

1.5d

0.375/ 9.5

6.2

0.2660

0.2608~0.2704

0.315~0.329

6.35 ×1.270

2d

0.500 / 12.7

8.6

6.8

6.62~6.86

8.00~8.35

1d

0.312/ 7.9

4.0

5/16-18.

1.5d

0.469/ 11.9

6.6

0.3320

0.3245~0.3342

0.382~0.398

7.94 ×1.411

2d

0.625 / 15.9

9.3

8.4

8.24~8.49

9.70~10.10

1d

0.375/ 9.5

4.8

3/8-16.

1.5d

0.562/ 14.3

7.7

0.3970

0.3885~0.3987

0.453~0.469

9.52 ×1.588

2d

0.750 / 19.1

10.6

10.1

9.89~10.12

11.50~11.90

1d

0.438/ 11.1

4.9

7/16-14.

1.5d

0.656/ 16.7

7.9

0.4530

0.4530~0.4639

0.528~0.545

11.11×1.814

2d

0.875 / 22.2

10.7

11.7

11.51~11.78

13.40~13.85

1d

0.500/12.7

4.5

1/2-12.

1.5d

0.750/19.1

7.4

0.5312

0.5166~0.5273

0.598~0.614

12.700 ×2.117

2d

1.000/25.4

10.2

13.2

13.12~13.40

15.20~15.60

1d

0.562/ 14.3

5.1

9/16-12.

1.5d

0.844/ 21.5

8.3

0.5938

0.5806~0.5918

0.669~0.685

14.29×2.117

2d

1.125 / 28.6

11.5

15

14.75~15.03

17.00~17.40

1d

0.625/ 15.9

5.3

5/8-11.

1.5d

0.937/ 23.8

8.5

0.6562

0.6447~0.6564

0.744~0.760

15.87×2.309

2d

1.25 / 31.90

11.8

16.7

16.38~16.68

18.90~19.30

1d

0.750/ 19.1

5.9

3/4-10.

1.5d

1.125/ 28.6

9.5

0.7812

0.7716~0.7838

0.882~0.898

19.05×2.540

2d

1.500 / 38.1

13.0

19.8

19.60~19.91

22.40~22.80

1d

0.875/22.2

6.3

7/8-9.

1.5d

1.312/33.3

10.0

0.9062

0.899~0.9119

1.024~1.039

22.226×2.822

2d

1.750/44.5

13.8

23.00

22.84~23.18

26~26.40

1d

1.0/25.4

6.6

1"-8.

1.5d

1.5/38.1

10.3

1.3012

1.0271~1.0421

1.165~1.185

25.4×3.175

2d

2.0/50.8

14.3

26.5

26.20~26.60

29.30~29.80