ANSI/ASME B 18.3 - 2003 Spline socket set screws (cone point)


Unit: inch
美标ANSI/ASME B18.3 - 2003 ANSI/ASME18.3 1 Spline socket set screws (cone point)
Screw Thread
d
0# 1# 2# 3# 4# 5# 6# 8# 10#
d Screw Diameter
PP UNC
UNF
UNEF
A Nominal number
Nominal Size
t min
L Nominal Size
α Nominal Size
0.0600 0.0730 0.0860 0.0990 0.1120 0.1250 0.1380 0.1640 0.1900
- 64.0 56.0 48.0 40.0 40.0 32.0 32.0 24.0
80.0 72.0 64.0 56.0 48.0 44.0 40.0 36.0 32.0
- - - - - - - - -
4 4 4\6 4\6 6 4\6 6\4 6 6
0.033 0.033 0.048 0.048 0.060 0.069\0.072 0.072\0.076 0.096 0.111
0.026 0.035 0.040 0.040 0.045 0.055 0.055 0.080 0.080
0.13 0.19 0.19 0.19 0.19 0.19 0.25 0.25 0.25
90° 90° 90° 90° 90° 90° 90° 90° 90°
Screw Thread
d
1/4 5/16 3/8 7/16 1/2 5/8 3/4 7/8
d Screw Diameter
PP UNC
UNF
UNEF
A Nominal number
Nominal Size
t min
L Nominal Size
α Nominal Size
0.2500 0.3125 0.3750 0.4375 0.5000 0.6250 0.7500 0.8750
20.0 18.0 16.0 14.0 13.0 11.0 10.0 9.0
28.0 24.0 24.0 20.0 20.0 18.0 16.0 14.0
32.0 32.0 32.0 28.0 28.0 24.0 20.0 20.0
6 6 6 6 6 6 6 6
0.145 0.183 0.216 0.251 0.291 0.372 0.454 0.595
0.125 0.156 0.188 0.219 0.250 0.312 0.375 0.500
0.31 0.44 0.44 0.63 0.63 0.88 1.00 1.25
90° 90° 90° 90° 90° 90° 90° 90°
①,Cone point angle 90°±2° for these Nominal Lengths or longer; 118°±2° for shorter Nominal lengths.
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