ASME B18.2.1 Hex Flange Screws, Inch Series

Dimensions of ASME B18.2.1 Hex Flange Screws

Nomianal Size or Basic product DiameterMinimum Bearing Diam., B1Maximum Runout of Bearing Surface FIMThread Length, LTMaximum Transition Thread Length, YRing TRing B
L ≤ 6 in.L > 6 in.L ≤ 6 in.L > 6 in.Inside Diameter
+0.0000
-0.0003
Min ThicknessInside Diameter
+0.0000
-0.0003
Min Thickness
+0.0000
-0.0003
1/40.25000.4800.0100.7501.0000.4000.6500.43800.5000.40930.0514
5/160.31250.6000.0110.8751.1250.4170.6670.58200.5000.54830.0643
3/80.37500.7300.0121.0001.2500.4380.6880.65500.5000.61830.0771
7/160.43750.8500.0131.1251.3750.4640.7140.73000.5000.68530.0900
1/20.50000.9800.0141.2501.5000.4810.7310.87500.5000.82530.1029
9/160.56251.1000.0151.3751.6250.7500.7500.95000.5000.89530.1157
5/80.62501.2300.0171.5001.7500.7730.7731.07500.5001.03430.1286
3/40.75001.4700.0201.7502.0000.8000.8001.31200.5001.23430.1543