UNIFIED

Thread Size

Type

Thread Code

Shank Code

A
(Shank)
Max.

Min. Sheet Thickness

Hole Size In Sheet +.003

C Max.

D Max.

E Max.

T ±0.10

Min.Dist Hole C/L To Edge

Steel

Stainless Steel

Aluminum

.086-56(#2-56)

LK

LKS

LKA

256

1

.038

.040

.172

.171

.165

.250

.135

.156

2

.054

.056

.112-40(#4-40)

LK

LKS

LKA

440

1

.038

.040

.187

.186

.185

.250

.135

.156

2

.054

.056

.138-32(#6-32)

LK

LKS

LKA

632

1

.038

.040

.219

.218

.220

.312

.145

.187

2

.054

.056

.164-32(#8-32)

LK

LKS

LKA

832

1

.038

.040

.266

.265

.250

.343

.175

.203

2

.054

.056

.190-32(#10-32)

LK

LKS

LKA

032

1

.038

.040

.312

.311

.300

.375

.205

.218

2

.054

.056

METRIC

Thread Size

Type

Thread Code

Shank Code

A
(Shank)
Max.

Min. Sheet Thickness

Hole Size In Sheet +0.08

C Max.

D Max.

E Max.

T ±0.25

Min.Dist Hole C/L To Edge

Steel

Stainless Steel

Aluminum

M2.5X0.45

LK

LKS

LKA

M2.5

1

0.97

1.0

4.37

4.35

4.45

6.35

3.43

3.9

2

1.38

1.4

M3X0.5

LK

LKS

LKA

M3

1

0.97

1.0

4.75

4.73

4.85

6.35

3.43

4.0

2

1.38

1.4

M4X0.7

LK

LKS

LKA

M4

1

0.97

1.0

6.76

6.73

6.20

8.73

4.45

5.2

2

1.38

1.4

M5X0.8

LK

LKS

LKA

M5

1

0.97

1.0

7.92

7.9

7.75

9.53

5.21

5.6

2

1.38

1.4