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ASME/ANSI B18.6.3-18-2010
Cross recessed pan head screws-Table 18
Nom
P
dk max
dk min
k max
k min
M
No.
t max
t min
#0
80
0.116
0.104
0.044
0.036
0.06
0
0.032
0.014
#1
64|72
0.142
0.13
0.053
0.044
0.067
0
0.04
0.022
#2
56|64
0.167
0.155
0.062
0.053
0.097
1
0.052
0.034
#3
48|56
0.193
0.18
0.071
0.062
0.105
1
0.061
0.043
#4
40|48
0.219
0.205
0.08
0.07
0.115
1
0.071
0.053
#5
40
0.245
0.231
0.089
0.079
0.152
2
0.072
0.046
#6
32|40
0.27
0.256
0.097
0.087
0.159
2
0.08
0.055
#8
32|36
0.322
0.306
0.115
0.105
0.175
2
0.097
0.071
#10
24|32
0.373
0.357
0.133
0.122
0.192
2
0.113
0.089
#12
24|28
0.425
0.407
0.151
0.139
0.252
3
0.124
0.098
1/4
20|28
0.492
0.473
0.175
0.162
0.274
3
0.144
0.118
5/16
18|24
0.615
0.594
0.218
0.203
0.343
4
0.173
0.149
3/8
16|24
0.74
0.716
0.261
0.244
0.382
4
0.213
0.19
7/16
14|20
0.863
0.837
0.305
0.284
0.406
4
0.239
0.214
1/2
13|20
0.987
0.958
0.348
0.325
0.428
4
0.26
0.235
9/16
12|18
1.041
1
0.391
0.366
0.458
4
0.292
0.268
5/8
11|18
1.172
1.125
0.434
0.406
0.575
5
0.31
0.281
3/4
10|16
1.435
1.375
0.521
0.488
0.621
5
0.349
0.322
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