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- Screws
- Wood screws and machine screws
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SCREWS. 425
TABLE No. 64. Dimensions of Machine Screws.
[American Screw Company]
n J /
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Fillister Head.
No.
2
A
0.0842
B C D E F G
•I350 .0549 ;
.0126 .030 .0338 .0675
3 0.0973 .1561 .0634 ! .0146 032 .0390 .0780
4 0.1105 .1772 .0720 .0166 034 •0443 .0886
5 0.1236 .1984 .0806 .0186 036 .0496 .0992
6 0.1368 • 2195 .0892 .0205 039 •0549 .1097
7 0.1500 .2406 j
.0978 .0225 041 .0602 .1203
8 0.1631 .2617 .1063 .0245 043 • 0654 .1308
9 0.1763 .2828 .1149 .0265 045 • 0707 .1414
10 0.1894 .3040 .1235 .0285 048 .0760 .1520
12 0.2158 .3462 !
.1407 .0324 052 .0866 .1731
H 0.2421 .3884 .1578 • 0364 o57 .0971 .1942
16 0.2684 •4307 .1750 • 0403 061 .1077 • 2153
18 0.2947 .4729 .1921 • 0443 066 .1182 .2364
20 0.3210 .5152 ;
.2093 .0483 070 .1288 • 2576
22 0-3474 • 5574 .2267 . 0520 075 •1384 .2787
24 0.3737 • 5996 • 2436 .0562 079 .1499 -2998
26 0.4000 .6419 .2608 .0601 084 .1605 .3209
28 0.4263 .6841 • 2779 !
-0641 088 .1710 .3420
1 30 0.4526 • 7264 .2951 1 .0681 093 .1816 •3632
The screws given in tables No. 63 and No. 64 are made in
following pitches
:
No. Threads No. Threads No. Threads No. Threads
per inch per inch 1
Der inch per inch
2 64,56,48 7 32,30 14 24,20,1*: 24 18,16,14
3 56,48 8 36,32,30 16 20,18,16 26 16,14
4 40,36,32 9 32,30,24 18 20,18,16 28 16,14
5 40,36,32 10 32,30,24 20 18,16 30 16,14
6 36.32,30 12 24,20 22 18,16
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