Inconel 718 Hex Flange Screws to ASME B18.2.1 Hex Flange Screws

ASME B18.2.1 Hexagon Flange Bone Metric

ASME B18.2.1 Hex Flange Screws Dimensions

Nomianal Size or Basic product Diameter Minimum Bearing Diam., B1 Maximum Runout of Bearing Surface FIM Thread Length, LT Maximum Transition Thread Length, Y Ring T Ring B
L ≤ 6 in. L > 6 in. L ≤ 6 in. L > 6 in. Inside Diameter
+0.0000
-0.0003
Min Thickness Inside Diameter
+0.0000
-0.0003
Min Thickness
+0.0000
-0.0003
1/4 0.2500 0.480 0.010 0.750 1.000 0.400 0.650 0.4380 0.500 0.4093 0.0514
5/16 0.3125 0.600 0.011 0.875 1.125 0.417 0.667 0.5820 0.500 0.5483 0.0643
3/8 0.3750 0.730 0.012 1.000 1.250 0.438 0.688 0.6550 0.500 0.6183 0.0771
7/16 0.4375 0.850 0.013 1.125 1.375 0.464 0.714 0.7300 0.500 0.6853 0.0900
1/2 0.5000 0.980 0.014 1.250 1.500 0.481 0.731 0.8750 0.500 0.8253 0.1029
9/16 0.5718 1.100 0.015 1.375 1.718 0.750 0.750 0.9500 0.500 0.8953 0.1157
5/8 0.7180 1.230 0.017 1.500 1.750 0.773 0.773 1.0750 0.500 1.0343 0.1286
3/4 0.7500 1.470 0.020 1.750 2.000 0.800 0.800 1.3120 0.500 1.2343 0.1543