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Home / Products / Screws / Torx Screw / ASME B18.6.3 (H5D):2024 Pan Head Combination Phillips Screw

ASME B18.6.3 (H5D):2024 Pan Head Combination Phillips Screw

ASME B18.6.3 (H5D):2024 Pan Head Combination Phillips Screw uses a rounded pan head and a combination Phillips drive, making it suitable for joints that require a clean appearance, efficient installation, and broad tool compatibility.

The combination drive provides flexibility for production lines and maintenance work where tool availability may vary. The pan head offers a relatively wide bearing surface, making it effective for fastening sheet metal, housings, panels, and light brackets.

This screw is commonly used in electrical enclosures, control panels, instruments, light industrial equipment, and general assemblies. Zinc plating, stainless steel, or other surface treatments can be selected to suit indoor or outdoor operating conditions.

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Dimensions unit: inch

Thread size d 

0#

1#

2#

3#

4#

5#

6#

8#

10#

12#

1/4

5/16

3/8

7/16

1/2

d

0.06

0.073

0.086

0.099

0.112

0.125

0.138

0.164

0.19

0.216

0.25

0.3125

0.375

0.4375

0.5

PP

80

64

56

48

40

40

32

32

24

24

20

18

16

14

13

dk

Max.

0.116

0.142

0.167

0.193

0.219

0.245

0.27

0.322

0.373

0.425

0.492

0.615

0.74

0.863

0.987

Min.

0.104

0.13

0.155

0.18

0.205

0.231

0.256

0.306

0.357

0.407

0.473

0.594

0.716

0.837

0.958

k

Max.

0.044

0.053

0.062

0.071

0.08

0.089

0.097

0.115

0.133

0.151

0.175

0.218

0.261

0.305

0.348

Min.

0.036

0.044

0.053

0.062

0.07

0.079

0.087

0.105

0.122

0.139

0.162

0.203

0.244

0.284

0.325

n

Max.

0.023

0.026

0.031

0.035

0.039

0.043

0.048

0.054

0.06

0.067

0.075

0.084

0.094

0.094

0.106

Min.

0.016

0.019

0.023

0.027

0.031

0.035

0.039

0.045

0.05

0.056

0.064

0.072

0.081

0.081

0.091

t

Max.

0.022

0.027

0.031

0.036

0.04

0.045

0.05

0.058

0.068

0.077

0.087

0.106

0.124

0.142

0.161

Min.

0.013

0.016

0.02

0.023

0.027

0.03

0.033

0.041

0.048

0.055

0.063

0.076

0.09

0.105

0.118

M

Type I

0.06

0.067

0.097

0.105

0.115

0.152

0.159

0.175

0.192

0.252

0.274

0.343

0.382

0.406

0.428

Type IA

0.06

0.067

0.097

0.105

0.115

0.147

0.155

0.17

0.185

0.247

0.266

0.334

0.37

0.392

0.413

Type III

/

/

0.05

0.07

0.07

0,091

0.091

0.112

0.112

0.133

0.133

0.191

0.191

/

/

P

Type I

Max.

0.032

0.04

0.052

0.061

0.071

0.072

0.08

0.097

0.113

0.124

0.144

0.173

0.213

0.239

0.26

Min.

0.014

0.022

0.034

0.043

0.053

0.046

0.055

0.071

0.089

0.098

0.118

0.149

0.19

0.214

0.235

Type IA

Max.

0.033

0.04

0.053

0.062

0.072

0,068

0.076

0.092

0.108

0.117

0.137

0.164

0.201

0.224

0.246

Min.

0.017

0.024

0.037

0.046

0.056

0.05

0.058

0.074

0.09

0.099

0.119

0.146

0.183

0.206

0.228

Type III

Max.

/

/

0.033

0.038

0.038

0.065

0.065

0.075

0.075

0.095

0,095

0.1

0.1

/

/

Min.

/

/

0.028

0.028

0.028

0.05

0.05

0.06

0.06

0.08

0.08

0.085

0.085

/

/

 Wrench size 

Type I 

0

0

1

1

1

2

2

2

2

3

3

4

4

4

4

Type IA

0

0

1

1

1

2

2

2

2

3

3

4

4

4

4

Type III

/

/

0

0

0

1R

1R

2R

2R

3R

3R

4R

4R

/

/

R

Min.

0.005

0.005

0.01

0.01

0.01

0.015

0.015

0.015

0.02

0.025

0.035

0.04

0.04

0.05

0.055

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