CONCEALED HEAD STUDS

CONCEALED HEAD STUDS

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Details

chc chc1

Part Number Designation

chc2

All dimensions are in inches (Size Unit: inch)

Thread Size

Type

Thread Code

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

Min.Sheet Thickness

Blind Mounting Hole Dia
+.003
-.000

Min.Depth Of Blind Hole (1)

A
Max.

E
±.010

C
Max.

Min.Dist Hole C/L To Edge

Max.
Hole in Attached Parts

Aluminum

Stainless Steel

.250

.375

.500

.625

.750

1.00

.112-40(#4-40)

CHA

CHC

440

4

6

8

10

12

/

.062

.172

.043

.041

.205

.171

.156

.135

CFHA

CFHC

.093

.075

.071

.138-32(#6-32)

CHA

CHC

632

4

6

8

10

12

16

.062

.213

.043

.041

.250

.212

.188

.160

CFHA

CFHC

.093

.075

.071

.164-32(#8-32)

CHA

CHC

832

4

6

8

10

12

16

.062

.290

.043

.041

.328

.289

219

.185

CFHA

CFHC

.093

.075

.071

.190-32(#10-32)

CHA

CHC

032

/

6

8

10

12

16

.062

.312

.043

.041

.350

.311

.250

.210

CFHA

CFHC

.093

.075

.071

All dimensions are in millimeters (Size Unit: mm)

Thread Size

Type

Thread Code

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

Min.Sheet Thickness

Blind Mounting Hole Dia
+0.08

Min.Depth Of Blind Hole (1)

A
Max.

E
±0.25

C
Max.

Min.Dist Hole C/L To Edge

Max.
Hole in Attached Parts

Aluminum

Stainless Steel

M3X0.5

CHA

CHC

M3

4

6

8

10

12

16

1.6

4.37

1.1

1.04

5.21

4.35

4.0

3.6

CFHA

CFHC

2.4

1.91

1.8

M4X0.7

CHA

CHC

M4

4

6

8

10

12

16

1.6

7.37

1.1

1.04

8.33

7.35

5.6

4.6

CFHA

CFHC

2.4

1.91

1.8

M5X0.8

CHA

CHC

M5

/

6

8

10

12

16

1.6

7.93

1.1

1.04

8.89

7.9

6.4

5.6

CFHA

CFHC

2.4

1.91

1.8

(1) Blind holes may be deeper than minimums except where sheet material is at or near minimum thickness . Fasteners should always be installed so the flange is flush with the surface of the sheet.

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