UNIFIED

Thread Size

Type

Thread Code

Length code

Sheet Thickness

Hole Size in Sheet +.003

C
Max.

H
Nom.

L
+.002
-.005

Min.Dist Hole C/L To Edge

Carbon Steel

Stainless Steel

.112-40(#4-40)

DSO

DSOS

440

250

.037-.250

.166

.165

.194

.250

.126

275

0.275

METRIC

Thread Size

Type

Thread Code

Length code

Sheet Thickness

Hole Size in Sheet +0.08

C
Max.

H
Nom.

L
+0.05
-0.13

Min.Dist Hole C/L To Edge

Carbon Steel

Stainless Steel

.112-40(#4-40)

DSO

DSOS

M3

6.35

0.94-6.35

4.2

4.19

4.92

6.35

3.2

7

7