asme-b18-3-hexagon-and-spline-socket-head-cap-screws (2)

ASME B18.3 Spline Socket Head Cap Screw Dimensions

Nominal Size or Basic DiameterBody Diameter, DHead Diameter, AHead Height, HSpline Socket Size, M
Nom
Key Engagement, T
Min
MaxMinMaxMinMaxMin
00.06000.06000.05680.0960.0910.0600.0570.0600.025
10.07300.07300.06950.1180.1120.0730.0700.0720.031
20.08600.08600.08220.1400.1340.0860.0830.0960.038
30.09900.09900.09490.1610.1540.0990.0950.0960.044
40.11200.11200.10750.1830.1760.1120.1080.1110.051
50.12500.12500.12020.2050.1980.1250.1210.1110.057
60.13800.13800.13290.2260.2180.1380.1340.1330.064
80.16400.16400.15850.2700.2620.1640.1590.1680.077
100.19000.19000.18400.3120.3030.1900.1850.1830.090
1/40.25000.25000.24350.3750.3650.2500.2440.2160.120
5/160.31250.31250.30530.4690.4570.3120.3060.2910.151
3/80.37500.37500.36780.5620.5500.3750.3680.3720.182
7/160.43750.43750.42940.6560.6420.4380.4300.4540.213
1/20.50000.50000.49190.7500.7350.5000.4920.4540.245
5/80.62500.62500.61630.9380.9210.6250.6160.5950.307
3/40.75000.75000.74061.1251.1070.7500.7400.6200.370
7/80.87500.87500.86471.3121.2930.8750.8640.6980.432
11.00001.00000.98861.5001.4791.0000.9880.7900.495