ANSI/ASME B18.3 TABLE1A Hexagon Socket Head Cap Titanium Screws similar to the countersunk head screw, the nail head is embedded in the machine part, and the connection strength is high, but the screw must be installed and disassembled with an Allen wrench of the corresponding specification. Generally used in various machine tools and their accessories.
ANSI/ASME B18.3 TABLE1A Hexagon Socket Head Cap Screws dimensions:
Titanium screws sizes 0# - 3/4'' B18.3-2003 Table 1 A
SPEC | d | PP | ds | dk | k | s | t | b | |||||
UNC | UNF | UNEF | max=DK | min | max | min | max | min | DK | min | min | ||
0# | 0.060 | - | 80.0 | - | 0.060 | 0.0568 | 0.096 | 0.091 | 0.060 | 0.057 | 0.050 | 0.025 | 0.50 |
1# | 0.073 | 64.0 | 72.0 | - | 0.073 | 0.0695 | 0.118 | 0.112 | 0.073 | 0.070 | 0.062 | 0.031 | 0.62 |
2# | 0.086 | 56.0 | 64.0 | - | 0.086 | 0.0822 | 0.140 | 0.134 | 0.086 | 0.083 | 0.078 | 0.038 | 0.62 |
3# | 0.099 | 48.0 | 56.0 | - | 0.099 | 0.0949 | 0.161 | 0.154 | 0.099 | 0.095 | 0.078 | 0.044 | 0.62 |
4# | 0.112 | 40.0 | 48.0 | - | 0.112 | 0.1075 | 0.183 | 0.176 | 0.112 | 0.108 | 0.094 | 0.051 | 0.75 |
5# | 0.125 | 40.0 | 44.0 | - | 0.125 | 0.1202 | 0.205 | 0.198 | 0.125 | 0.121 | 0.094 | 0.057 | 0.75 |
6# | 0.138 | 32.0 | 40.0 | - | 0.138 | 0.1329 | 0.226 | 0.218 | 0.138 | 0.134 | 0.109 | 0.064 | 0.75 |
8# | 0.164 | 32.0 | 36.0 | - | 0.164 | 0.1585 | 0.270 | 0.262 | 0.164 | 0.159 | 0.141 | 0.077 | 0.88 |
10# | 0.190 | 24.0 | 32.0 | - | 0.190 | 0.1840 | 0.312 | 0.303 | 0.190 | 0.185 | 0.156 | 0.090 | 0.88 |
1/4 | 0.250 | 20.0 | 28.0 | 32.0 | 0.250 | 0.2435 | 0.375 | 0.365 | 0.250 | 0.244 | 0.188 | 0.120 | 1.00 |
5/16 | 0.3125 | 18.0 | 24.0 | 32.0 | 0.3125 | 0.3053 | 0.469 | 0.457 | 0.312 | 0.306 | 0.250 | 0.151 | 1.12 |
3/8 | 0.375 | 16.0 | 24.0 | 32.0 | 0.375 | 0.3678 | 0.562 | 0.550 | 0.375 | 0.368 | 0.312 | 0.182 | 1.25 |
7/16 | 0.4375 | 14.0 | 20.0 | 28.0 | 0.4375 | 0.4294 | 0.656 | 0.642 | 0.438 | 0.430 | 0.375 | 0.213 | 1.38 |
1/2 | 0.500 | 13.0 | 20.0 | 28.0 | 0.500 | 0.4919 | 0.750 | 0.735 | 0.500 | 0.492 | 0.375 | 0.245 | 1.50 |
5/8 | 0.625 | 11.0 | 18.0 | 24.0 | 0.625 | 0.6163 | 0.938 | 0.921 | 0.625 | 0.616 | 0.500 | 0.307 | 1.75 |
3/4 | 0.750 | 10.0 | 16.0 | 20.0 | 0.750 | 0.7406 | 1.125 | 1.107 | 0.750 | 0.740 | 0.625 | 0.370 | 2.00 |
7/8'' - 4'' titanium screws B18.3-2003 table 1 A
SPEC | d | PP | ds | dk | k | s | t | b | |||||
UNC | UNF | UNEF | max=DK | min | max | min | max | min | DK | min | min | ||
7/8 | 0.875 | 9.0 | 14.0 | 20.0 | 0.875 | 0.8647 | 1.312 | 1.293 | 0.875 | 0.864 | 0.750 | 0.432 | 2.25 |
1 | 1.000 | 8.0 | 12.0 | 20.0 | 1.000 | 0.9886 | 1.500 | 1.479 | 1.000 | 0.988 | 0.750 | 0.495 | 2.50 |
1-1/8 | 1.125 | 7.0 | 12.0 | 18.0 | 1.125 | 1.1086 | 1.688 | 1.665 | 1.125 | 1.111 | 0.875 | 0.557 | 2.81 |
1-1/4 | 1.250 | 7.0 | 12.0 | 18.0 | 1.250 | 1.2336 | 1.875 | 1.852 | 1.250 | 1.236 | 0.875 | 0.6220 | 3.12 |
1-3/8 | 1.375 | 6.0 | 12.0 | 18.0 | 1.375 | 1.3568 | 2.062 | 3.038 | 1.375 | 1.360 | 1.000 | 0.682 | 3.44 |
1-1/2 | 1.500 | 6.0 | 12.0 | 18.0 | 1.500 | 1.4818 | 2.250 | 2.224 | 1.500 | 1.485 | 1.000 | 0.745 | 3.75 |
1-3/4 | 1.750 | 5.0 | - | - | 1.750 | 1.7295 | 2.625 | 2.597 | 1.750 | 1.734 | 1.250 | 0.870 | 4.38 |
2 | 2.000 | 4.5 | - | - | 2.000 | 1.9780 | 3.000 | 2.970 | 2.000 | 1.983 | 1.500 | 0.995 | 5.00 |
2-1/4 | 2.250 | 4.5 | - | - | 2.250 | 2.2280 | 3.375 | 3.344 | 2.250 | 2.232 | 1.750 | 1.120 | 5.62 |
2-1/2 | 2.500 | 4.0 | - | - | 2.500 | 2.4762 | 3.750 | 3.717 | 2.500 | 2.481 | 1.750 | 1.245 | 6.25 |
2-3/4 | 2.750 | 4.0 | - | - | 2.750 | 2.7262 | 4.125 | 4.090 | 2.750 | 2.730 | 2.000 | 1.370 | 6.88 |
3 | 3.000 | 4.0 | - | - | 3.000 | 2.9762 | 4.500 | 4.464 | 3.000 | 2.979 | 2.250 | 1.495 | 7.50 |
3-1/4 | 3.250 | 4.0 | - | - | 3.250 | 3.2262 | 4.875 | 4.837 | 3.250 | 3.228 | 2.250 | 1.620 | 8.12 |
3-1/2 | 3.500 | 4.0 | - | - | 3.500 | 3.4762 | 5.250 | 5.211 | 3.500 | 3.478 | 2.750 | 1.745 | 8.75 |
3-3/4 | 3.750 | 4.0 | - | - | 3.750 | 3.7262 | 5.625 | 5.584 | 3.750 | 3.727 | 2.750 | 1.870 | 9.38 |
4 | 4.000 | 4.0 | - | - | 4.000 | 3.9762 | 6.000 | 5.958 | 4.000 | 3.976 | 3.000 | 1.995 | 10.00 |
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