WOOD SCREWS

Flat Head
Machine Screws
Wood Screws *
Tapping Screws
SLOTTED   PHILLIPS
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

 

Oval Head
Machine Screws
Tapping Screws
Wood Screws*
SLOTTED   PHILLIPS
Nominal
Size		 A H O J T M G N Phillips
Driver
Size
Head Diameter Height of Head Width of Slot Depth of Slot Dimensions of Recess
Side Height Total Height Diameter Depth Width
Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min.
4
5*
6
8
9*
10
12
14*
1/4		 .225
.252
.279
.332
.358
.385
.438
.491
.507		 .195
.220
.244
.292
.316
.340
.389
.452
.452		 .067
.075
.083
.100
.108
.116
.132
.148
.153		 .054
.062
.069
.084
.091
.098
.112
.127
.131		 .104
.116
.128
.152
.164
.176
.200
.224
.232		 .084
.095
.105
.126
.137
.148
.169
.190
.197		 .039
.043
.048
.054
.054
.060
.067
.075
.075		 .031
.035
.039
.045
.045
.050
.056
.064
.064		 .059
.067
.074
.088
.095
.103
.117
.132
.136		 .049
.055
.060
.072
.078
.084
.096
.108
.112		 .136
.158
.178
.192
.216
.209
.270
.305
.290		 .123
.145
.165
.179
.203
.196
.257
.292
.277		 .094
.085
.105
.119
.144
.137
.152
.188
.173		 .019
.028
.030
.031
.034
.033
.038
.042
.040		 1
2
2
2
2
2-3*
3
3
3

 

Wood Screws
Nominal
Size or Basic Screw Diameter		 Threads per Inch E
Body Diameter
Max. Min.
4 0.112
5 0.125
6 0.138
7 0.151
8 0.164
9 0.177
10 0.190
12 0.216
14 0.242
22
20
18
16
15
14
13
11
10		 0.116
0.129
0.142
0.155
0.168
0.181
0.194
0.220
0.246		 0.105
0.118
0.131
0.144
0.157
0.170
0.183
0.209
0.235

 

Round Head
Machine Screws
Wood Screws*
SLOTTED   PHILLIPS
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
3
4
5
6
7*
8
9*
10
12
14*
1/4
5/16
3/8
1/2		 .162
.187
.211
.236
.260
.285
.309
.334
.359
.408
.457
.472
.590
.708
.813		 .146
.169
.193
.217
.240
.264
.287
.311
.334
.382
.429
.443
.557
.670
.766		 .069
.078
.086
.095
.103
.111
.120
.128
.137
.153
.170
.175
.216
.256
.355		 .059
.067
.075
.083
.091
.099
.107
.115
.123
.139
.155
.160
.198
.237
.332		 .031
.035
.039
.043
.048
.048
.054
.054
.060
.067
.075
.075
.084
.094
.106		 .023
.027
.031
.035
.039
.039
.045
.045
.050
.056
.064
.064
.072
.081
.091		 .048
.053
.058
.063
.068
.072
.077
.082
.087
.096
.106
.109
.132
.155
.211		 .037
.040
.044
.047
.051
.055
.058
.062
.065
.072
.080
.082
.099
.117
.159		 .100
.109
.118
.154
.162
.170
.178
.186
.195
.249
.265
.268
--
--
--		 .087
.096
.105
.141
.149
.157
.165
.173
.182
.236
.252
.255
--
--
--		 .053
.062
.072
.074
.084
.092
.101
.110
.119
.125
.142
.147
--
--
--		 .017
.018
.019
.027
.027
029
.030
.030
.031
.032
.034
.034
--
--
--		 1
1
1
2
2
2
2
2
2-3*
3
3
3
--
--
--

 

Wood Screws
Nominal Screw Length Tolerance on Length
Up to 5/8in., Incl.
Over 5/8 to l-1/2 in., Incl.
Over l-1/2 to 2-3/4 in., Incl.
Over 2-3/4 to 5 in., Incl.		 -0.03
-0.05
-0.06
-0.09

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