公制单位：mm；

螺纹×螺距
Thread size x pitch

型号TYPE

螺纹代号
Thread Code

长度码Length Code "L"
+0.05/-0.13

最小板厚
Min Sheet
Thichness

板孔径
Hole Size In Sheet
+0.08

C

H

最小边距
Min Dist Hole C/L TO Edge

碳钢

不锈钢

硬化不锈钢

铝

ST

ST

HST

Alu

-0.1

±0.1

M3*0.5

BSO

BSOS

BSO4

BSOA

M3

6

8

11

14

18

1

4.2

4.19

4.75

6

M3*0.5

3.5M3

10

12

16

20

1

5.4

5.38

6.35

6.8

M3.5*0.6

M3.5

25

1

5.4

5.38

6.35

6.8

M4*0.7

M4

28

1.3

7.14

7.11

8

8

M5*0.8

M5

32

1.3

7.14

7.11

8

8

M6*1

M6

1.3

8.75

8.72

10

10

F最小尺寸 MIN DIMENSION

3.2

4

5

6.5

9.5

单位尺寸：Inches；

螺纹×螺距
Thread size x pitch

型号TYPE

螺纹代号
Thread Code

长度码Length Code "L"
+0.002/-0.005

最小板厚
Min Sheet
Thichness

板孔径
Hole Size In Sheet
+0.003

C

H

最小边距
Min Dist Hole C/L TO Edge

碳钢

不锈钢

硬化不锈钢

铝

ST

ST

HST

Alu

-0.005

±0.004

.112-40

BSO

BSOS

BSO4

BSOA

440

10

14

16

22

0.04

0.166

0.165

0.187

0.230

(#4-40)

.112-40

6440

12

18

24

0.04

0.213

0.212

0.250

0.270

(#4-40)

.138-32

632

20

26

0.04

0.213

0.212

0.250

0.270

(#6-32)

.138-32

8632

28

0.05

0.281

0.280

0.312

0.310

(#6-32)

.164-32

832

30

0.05

0.281

0.280

0.312

0.310

(#8-32)

32

.190-32

032

34

0.05

0.281

0.280

0.312

0.310

(#10-32)