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431
TABLE Not 7C>—Dimensions of Heads of flachine Screws.
A. S. M. E. Standard.
A == diameter of body. A = diam. of body.
B == 1.64A — .009 = diam. of head B = 1.64A — .009
and radius for oval. = diam. of head.
C == 0.66A — .002 = height of side.
C = .66A — .002
= height of head.
D == .173A + .015 = width of slot. D = .173A + .015
E == iF = depth of slot. = width of slot.
F == .134B + C = height of head.
E = -JC = depth of
slot.
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D 1 B —4
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FLAT FILLISTER
OVAL FILLISTER HEAD. HEAD.
Num-
ber A B c D E F B c D E
o .060 .0894 .0376 .025 .025 .0496 .0894 .0376 .025 .019
i 073 .1107 .0461 .028 .030 .0609 .1107 .0461 .028 .023
2 .086 .1320 .0548 .030 .036 .0725 .1320 .0548 .030 .027
3 .099 • 1530 .0633 .032 .042 .0838 .1530 .0633 .032 .032
4 .112 .1747 .0719 .034 .048 • 0953 • 1747 .0719 .034 .036
5 .125 .i960 .0805 .037 .053 .1068 .i960 .0805 .037 .040
6 .138 .2170 .0890 .039 .059 .1180 .2170 .0890 .039 .044
7 .151 .2386 .0976 .041 .065 .1296 .2386 .0976 .041 .049
8 .164 • 2599 .1062 .043 .071 .1410 • 2599 .1062 .043 • 053
9 .177 .2813 .1148 .046 .076 .1524 .2813 .1148 .046 057
IO .190 .3026 .1234 .048 .082 .1639 .3026 .1234 .048 .062
12 .216 • 3452 .1405 .052 • 093 .1868 • 3452 • 1405 .052 .070
14 .242 .3879 .1577 • 057 .105 .2097 .3879 • 1577 • 057 .079
16 .268 •4305 .1748 .061 .116 .2325 •4305 .1748 .061 .087
18 .294 •
473i . 1920 .066 .128 •2554 •473i .1920 .066 .096
20 .320 .5158 .2092 .070 .140 •2783 •5158 .2092 .070 . 104
22 •346 •5584 .2263 .075 .150 .3011 •5584 .2263 • 075 •113
24 •372 .6010 • 2435 .079 . 162 .3240 .6010 • 2435 .079 .122
26 .398 •6437 .2606 .084 •173 •3469 •6437 .2606 .084 .130
28 .424 .6863 .2778 .088 .185 .3698 .6863 .2778 .088 •139
30 .450 .7290 .2950 •093 .196 •3927 .7290 .2950 •093 .147
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