UNIFIED

Thread Size

Type

Thread Code

Length Code "L" ±.015
( Length Code is in 16ths of an inch)

Min.Sheet Thickness

Hole Size In Sheet
+.005
-.000

Max.Hole in Attach Parts

H
±.01

S Max. (2)

T
Max.

Min.Dist Hole C/L To Edge

Fastener Material

Steel

Stainless Steel

Phosphor Bronze(1)

.500

.750

1.00

1.25

1.50

1.75

2.00

.190-32(#10-32)

HFH

HFHS

HFHB

032

8

12

16

20

24

28

32

.050

.190

.250

.300

.105

.040

.415

.250-20(1/4-20)

HFH

HFHS

HFHB

0420

8

12

16

20

24

28

32

.060

.250

.312

.380

.125

.050

.460

.313-18(5/16-18)

HFH

HFHS

HFHB

0518

8

12

16

20

24

28

32

.075

312

.375

.480

.140

.070

.500

.375-16(#3/8-16)

HFH

HFHS

HFHB

0616

NA

12

16

20

24

28

32

090

.375

.437

.580

.155

.085

530

METRIC

Thread Size

Type

Thread Code

Length Code "L" ± 0.4
( Length Code is in millimeters)

Min.Sheet Thickness

Hole Size In Sheet
+0.13

Max.Hole in Attach Parts

H
±0.25

S Max. (2)

T
Max.

Min.Dist Hole C/L To Edge

Fastener Material

Steel

Stainless Steel

Phosphor Bronze(1)

M5X0.8

HFH

HFHS

HFHB

M5

15

20

25

30

35

40

50

1.3

5

6.5

7.8

2.7

1.14

10.7

M6X1.0

HFH

HFHS

HFHB

M6

15

20

25

30

35

40

50

1.5

6

7.5

9.4

2.8

1.27

11.5

M8X1.25

HFH

HFHS

HFHB

M8

15

20

25

30

35

40

50

2

8

9.5

12.5

3.5

1.78

12.7

M10X1.5

HFH

HFHS

HFHB

M10

15

20

25

30

35

40

50

2.3

10

11.5

15.7

4.1

2.29

13.7