UNIFIED

Thread Size

Type

Thread Code

Shank Code

A
(Shank)
Max.

Min. Sheet Thickness

Hole Size In Sheet +.003

B Max.

C Max.

E ±0.01

F Min.

L Max.

T ±0.01

Min.Dist Hole C/L To Edge

Steel

Stainless Steel

.112-40(#4-40)

B

BS

440

1

.038

.040

.166

.150

.165

.250

.210

.335

.380

.19

2

.054

.056

.138-32(#6-32)

B

BS

632

1

.038

.040

.1875

.169

.187

.280

.230

.335

.380

.22

2

.054

.056

.164-32(#8-32)

B

BS

832

1

.038

.040

.213

.204

.212

.310

.280

.385

.440

.27

2

.054

.056

.190-32(#10-32)

B

BS

032

1

.038

.040

.250

.235

.249

.340

.280

.385

.440

.28

2

.054

.056

.250-20(1/4-20)

B

BS

0420

1

.054

.056

.344

.305

.343

.430

.310

.500

.560

.34

2

.087

.090

METRIC

Thread Size

Type

Thread Code

Shank Code

A
(Shank)
Max.

Min. Sheet Thickness

Hole Size In Sheet +0.08

B Max.

C Max.

E ±0.25

F Min.

L Max.

T ±0.25

Min.Dist Hole C/L To Edge

Steel

Stainless Steel

M3X0.5

B

BS

M3

1

0.97

1

4.25

3.84

4.22

6.35

5.3

8.5

9.6

4.8

2

1.38

1.4

M4X0.7

B

BS

M4

1

0.97

1

5.4

5.20

5.38

7.95

7.1

9.8

11.2

6.9

2

1.38

1.4

M5X0.8

B

BS

M5

1

0.97

1

6.4

6.02

6.38

8.75

7.1

9.8

11.2

7.1

2

1.38

1.4

M6X1.0

B

BS

M6

1

1.38

1.4

8.75

7.80

8.72

11.10

7.8

12.7

14.3

8.6

2

2.21

2.3