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ASME/ANSI B18.6.3:2010 Pan Head Slotted Tapping Screw

ASME/ANSI B18.6.3:2010 Pan Head Slotted Tapping Screw is suitable for sheet metal and light material fastening under the U.S. standard system. The pan head provides good surface coverage, while the slotted drive allows assembly with common tools.

The tapping thread forms its mating thread in a prepared hole, reducing the need for a nut or separate tapping operation. This structure is practical for quick fastening in appliances, enclosures, plastic housings, and light industrial products.

It can be used in export equipment, spare parts, appliance assembly, panel mounting, and general hardware connections. Different point styles, materials, and coatings can be selected to meet requirements for corrosion protection, appearance, and assembly efficiency.

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Unit: mm

Nominal diameter d

dk

k

n

t

max

min

max

min

max

min

max

min

#0

0.116

0.104

0.039

0.031

0.023

0.016

0.022

0.014

#1

0.142

0.130

0.046

0.038

0.026

0.019

0.027

0.018

#2

0.167

0.155

0.053

0.045

0.031

0.023

0.031

0.022

#3

0.193

0.180

0.060

0.051

0.035

0.027

0.036

0.026

#4

0.219

0.205

0.068

0.058

0.039

0.031

0.040

0.030

#5

0.245

0.231

0.075

0.065

0.043

0.035

0.045

0.034

#6

0.270

0.256

0.082

0.072

0.048

0.039

0.050

0.037

#7

0.296

0.281

0.089

0.079

0.048

0.039

0.054

0.041

#8

0.322

0.306

0.096

0.085

0.054

0.045

0.058

0.045

#10

0.373

0.357

0.110

0.099

0.060

0.050

0.068

0.053

#12

0.425

0.407

0.125

0.112

0.067

0.056

0.077

0.061

#14

0.476

0.457

0.139

0.126

0.075

0.064

0.085

0.068

1/4

0.492

0.473

0.144

0.130

0.075

0.064

0.087

0.070

#16

0.528

0.508

0.153

0.139

0.075

0.064

0.093

0.074

#18

0.579

0.558

0.168

0.153

0.084

0.072

0.100

0.080

5/16

0.615

0.594

0.178

0.162

0.084

0.072

0.106

0.085

#20

0.631

0.608

0.182

0.166

0.084

0.072

0.108

0.087

#24

0.734

0.709

0.211

0.193

0.094

0.081

0.123

0.100

3/8

0.740

0.716

0.212

0.195

0.094

0.081

0.124

0.100

7/16

0.863

0.837

0.247

0.228

0.094

0.081

0.142

0.116

1/2

0.987

0.958

0.281

0.260

0.106

0.091

0.161

0.131

Remarks: Thread and tail end form, refer to ASME B18.6.3-2010 AB, A, B, BP, BF, BT, D, F, G, T type thread and tail end

 

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