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ANSI Wood Screws Table #2

ANSI Hardware Design and Guide

 

ANSI Flat, Pan, and Oval Head Wood Screws per. ANSI B18.6.1 Size Table #2

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ANSI Flat, Pan, and Oval Head Wood Screws per. ANSI B18.6.1 Size Table

Flat Head Screw
Flat Head Screw

Pan Head Screw
Pan Head Screw

 

Oval Head Screw
Oval Head Screw

ANSI Flat Head Screw, Pan Head Screw, and Oval Head Wood Screws per. ANSI B18.6.1 Size Table #2

Nominal
Size
Threads
per
Inch
O
Tot.
Hgt.
of
Head
K
Height
of
Head
T
Depth
of
Slot
U
Depth
of
Slot
V
Depth
of
Slot
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max..
Min
0
32
.056
.041
.039
.031
.015
.010
.022
.014
.030
.025
1
28
.068
.052
.046
.038
.019
.012
.027
.018
.038
.031
2
26
.080
.063
.053
.045
.023
.015
.031
.022
.045
.037
3
24
.092
.073
.060
.051
.027
.017
.035
.027
.052
.043
4
22
.104
.084
.068
.058
.030
.020
.040
.030
.059
.049
5
20
.116
.095
.075
.065
.034
.022
.045
.034
.067
.055
6
18
.128
.105
.082
.072
.038
.024
.050
.037
.074
.060
7
16
.140
.116
.089
.079
.041
.027
.054
.041
.081
.066
8
15
.152
.126
.096
.085
.045
.029
.058
.045
.088
.072
9
14
.164
.137
.103
.092
.049
.032
.063
.049
.095
.078
10
13
.176
.148
.110
.099
.053
.034
.068
.053
.103
.084
12
11
.200
.169
.125
.112
.060
.039
.077
.061
.117
.096
14
10
.232
.197
.144
.130
.070
.046
.087
.070
.136
.112
16
9
.248
.212
.153
.139
.075
.049
.093
.074
.146
.120
18
8
.290
.249
.178
.162
.083
.054
.106
.085
.171
.141
20
8
.296
.254
.182
.166
.090
.059
.108
.087
.175
.144
24
7
.347
.300
.212
.195
.106
.070
.124
.100
.204
.168

All dimensions in inches. The edge of flat and oval head screws may be flat or rounded. Wood screws are also available with Types I, IA, and II recessed heads. Consult the standard for recessed head dimensions. *The length of the thread, LT, on wood screws having cut threads shall be equivalent to approximately two-thirds of the nominal length of the screw. For rolled threads, LT shall be at least four times the basic screw diameter or two-thirds of the nominal screw length, whichever is greater. Screws of nominal lengths that are too short to accommodate the minimum thread length shall have threads extending as close to the underside of the head as practicable.

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