1-800-466-9780
1-800-466-9780

Thread Rolling Screws

Thread rolling screws are a type of threaded fastener that forms threads that securely and reliably fasten into materials through pre-existing holes. Thread rolling screws form threads in material by pushing material outward. Because of this, the most popular application for thread rolling screws are when you must avoid loose chips that are formed by thread cutting screws. 

Our thread rolling screws can be customized to your application and industry. Please review all of our thread rolling screw charts below and download the size charts. 

Download all CHARTS TOGETHER

Flat Head

Machine Screws
Wood Screws *
Tapping Screws

Request Quote
Download Size Chart
Nominal Size A H J T M G N Phillips
Driver Size
Head Diameter Height of Head Width of Slot Depth of Slot Dimensions of Recess
Diameter Depth Width
Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min.
2
4
5
6
7*
8
9*
10
12
14*
1/4
5/16
3/8
1/2		 .172
.225
.252
.279
.305
.332
.358
.385
.438
.491
.507
.635
.762
.875		 147
.195
.220
.244
.268
.292
.316
.340
.389
.437
.452
.568
.685
775		 .051
.067
.075
.083
.091
.100
.108
.116
.132
.148
.153
.191
.230
.223		 .040
.055
.062
.069
.076
.084
.091
.098
.112
.127
.131
.165
.200
.198		 .031
.039
.043
.048
.048
.054
.054
.060
.067
.075
.075
.084
.094
.106		 .023
.031
.035
.039
.039
.045
.045
.050
.056
.064
.064
.072
.081
.091		 .023
.030
.034
.038
.041
.045
.049
.053
.060
.068
.070
.088
.106
.103		 .015
.020
.022
.024
.027
.029
.032
.034
.039
.044
.046
.058
.070
.065		 .102
.128
.154
.174
.182
.189
.258
.204
.268
.283
.283
.365
.393
.424		 .089
.115
.141
.161
.169
.176
.245
.191
.255
.270
.270
.352
.380
.411		 .063
.089
.086
.106
.114
.121
.146
.136
.156
.171
.171
.216
.245
.276		 .017
.018
.027
.029
.030
.031
.034
.032
.036
.039
.035
.061
.065
.069		 1
1
2
2
2
2
2
2-3*
3
3
3
4
4
4

Hex Head

Hex Washer Head

Machine Screws
Tapping Screws
Self Drilling Screws

Request Quote
Download Size Chart
Nominal
Size		 A W H F U J T
Width
Across
Flats		 Width
Across
Corners		 Height
of
Head		 Diameter
of
Washer		 Thickness
of
Washer		 Width
of
Slot		 Depth
of
Slot
Max. Min. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min.
4
6
7
8
10
12
14
1/4
5/16
3/8		 .187
.250
.250
.250
.312
.312
.438
.375
.500
.562		 .181
.244
.244
.244
.305
.305
.428
.367
.489
.551		 .202
.272
.272
.272
.340
.340
.409
.409
.545
.614		 .060
.093
.093
.110
.120
.155
.190
.190
.230
.295		 .049
.080
.080
.096
.105
.139
.172
.172
.208
.270		 .243
.328
.328
.348
.414
.432
.520
.520
.676
.780		 .225
.302
.302
.322
.384
.398
.480
.480
.624
.720		 .019
.025
.029
.031
.031
.039
.050
.050
.055
.063		 .011
.015
.017
.019
.019
.022
.030
.030
.035
.037		 .039
.048
.048
.054
.060
.067
.075
.075
.084
.094		 .031
.039
.039
.045
.050
.056
.064
.064
.072
.081		 .042
.053
.062
.074
.080
.103
.111
.111
.134
.168		 .025
.033
.040
.052
.057
.077
.083
.083
100
.131

Pan Head

Machine Screws
Tapping Screws
Self Drilling Screws

Request Quote
Download Size Chart
Nominal
Size		 A H H1 J T M G N Phillips
Driver
Size
Head Diameter Height of Head Width of Slot Depth of Slot Dimensions of Recess
Slotted Recessed Diameter Depth Width
Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min.
2
3
4
5
6
7
8
10
12
1/4
5/16
3/8		 .167
.193
.219
.245
.270
.296
.322
.373
.425
.492
.615
.740		 .155
.180
.205
.231
.256
.281
.306
.357
.407
.473
.594
.716		 .053
.060
.068
.075
.082
.089
.096
.110
.125
.144
.178
.212		 .045
.051
.058
.065
.072
.079
.085
.099
.112
.130
.162
.195		 .062
.071
.080
.089
.097
.106
.115
.133
.151
.175
.218
.261		 .053
.062
.070
.079
.087
.096
.105
.122
.139
.162
.203
.244		 .031
.035
.039
.043
.048
.048
.054
.060
.067
.075
.084
.094		 .023
.027
.031
.035
.039
.039
.045
.050
.056
.064
.072
.081		 .031
.036
.040
.045
.050
.054
.058
.068
.077
.087
.106
.124		 .022
.026
.030
.034
.037
.041
.045
.053
.061
.070
.085
.100		 .104
.112
.122
.158
.166
.176
.182
.199
.259
.281
.350
.389		 .091
.099
.109
.145
.153
.163
.169
.186
.246
.268
.337
.376		 .059
.068
.078
.083
.091
.100
.108
.124
.141
.161
.193
.233		 .017
.019
.019
.028
.028
.029
.030
.031
.034
.036
.169
.210		 1
1
1
2
2
2
2
2
3
3
4
4

Plastite® Thread Rolling Screws

Request Quote
Download Size Chart

®Plastite is a registered trademark of REMINC (Research Engineering & Manufacturing Inc.)

Screw Size C D Minimum Out-Of Round Recommended Pilot Hole Sizes
Dia. of Circumscribing
Circle		 Measurements
Across Center
Max. Min. Max. Min. Soft Ductile Materials Brittle Materials
6
8
10
14		 .147
.185
.212
.276		 .141
.179
.206
.270		 .143
.179
.208
.268		 .137
.173
.202
.262		 .003
.004
.004
.006		 .122
.149
.175
.224		 .128
.158
.185
.240

Thread Rolling Screws

Genuine Taptite II

® Taptite is a registered trademark of REMINC (Research Engineering & Manufacturing Inc.)

Request Quote
Download Size Chart
  C D G Thread Length Torsional Strength
Size of Screw Point
Inch Nominal Screw Size Dia.- T.P.I. MM Nominal Screw Pitch Dia.- Pitch Diameter of Circumscribing Circle Measurement Across Center Dia. of Circum. Circle Screw Lengths as Listed & Shorter Thread to Head (Free breaking Torque of screw)
Maximum Minimum Maximum Minimum Maximum Minimum
In. In. In. In. In. In. lb.In. Nm.
2-56
3-48
4-40
5-40
6-32		 2.5-0.45
2.5-0.53
2.8-0.64
3.2-0.64
3-5-0.79		 .0875
.1010
.1145
.1275
.1410		 .0835
.0970
.1105
.1235
.1350		 .0840
.0970
.1095
.1225
.1350		 .0800
.0930
.1055
.1185
.1290		 .070
.081
.090
.103
.111		 5/8
5/8
3/4
7/8
7/8		 6
10
14
22
24		 ——
—
2.71
8-32
10-24
10-32
12-24
1/4-20		 4.2-0.79
4.8-1.06
4.8-0.79
5.5-1.06
6.3-1.27		 .1670
.1940
.1930
.2200
.2550		 .1610
.1880
.1870
.2140
.2490		 .1610
.1850
.1870
.2110
.2460		 .1550
.1790
.1810
.2050
.2400		 .137
.153
.163
.179
.206		 1
1 1/4
1 1/4
1 3/8
1 1/2		 48
65
81
105
160		 5.40
7.34
9.15
11.90
18.10
5/16-18
3/8-16
7/16-14
1/2-13		 7.9-1.41
9.5-1.59
11.1-1.81
12.7-1.95		 .3180
.3810
.4445
.5075		 .3120
.3750
.4385
.5015		 .3080
.3710
.4315
.4935		 .3020
.3650
.4255
.4875		 .264
.320
.375
.433		 1 1/2
1 1/2
1 1/2
1 1/2		 340
620
950
1450		 38.40
70.00
107.33
163.82

Request a Quote

Contact Us