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  5. ASME B18.6.3 Slotted 100 Degree Flat Countersunk Head Machine Screws

ASME B18.6.3 Slotted 100 Degree Flat Countersunk Head Machine Screws

ASME B18.6.3 Slotted 100 Degree Flat Countersunk Head Machine Screws

ASME B18.6.3 Slotted 100 Degree Flat Countersunk Head Machine Screws Dimensions (mm)

Nominal Size Head Diameter, A Head Height, H Slot Width, J Slot Depth, T Protrusion Above Gaging Diameter, F Gaging Diameter, G
Max. Min. Ref. Max. Min. Max. Min. Max. Min.
#0000 0.533 1.016 0.889 0.229 0.203 0.127 0.203 0.102 - - -
#000 0.864 1.524 1.397 0.356 0.305 0.203 0.279 0.178 - - -
#00 1.194 2.210 2.032 0.508 0.432 0.254 0.330 0.203 - - -
#0 1.524 2.845 2.413 0.660 0.584 0.406 0.330 0.203 0.508 0.305 1.880
#1 1.854 3.480 2.997 0.787 0.660 0.483 0.406 0.254 0.533 0.330 2.489
#2 2.184 4.115 3.607 0.940 0.787 0.584 0.483 0.305 0.559 0.356 3.073
#3 2.515 4.750 4.191 1.092 0.889 0.686 0.559 0.356 0.610 0.381 3.658
#4 2.845 5.385 4.775 1.245 0.991 0.787 0.610 0.432 0.635 0.406 4.242
#6 3.505 6.655 5.969 1.524 1.219 0.991 0.762 0.559 0.711 0.432 5.436
#8 4.166 7.925 7.163 1.829 1.372 1.143 0.914 0.686 0.787 0.483 6.629
#10 4.826 9.195 8.357 2.108 1.524 1.270 1.067 0.787 0.864 0.533 7.798
1/4 6.350 12.116 11.100 2.794 1.905 1.626 1.397 1.067 1.016 0.635 10.541
5/16 7.938 15.164 13.970 3.505 2.134 1.829 1.753 1.346 1.194 0.762 13.360
3/8 9.525 18.212 16.815 4.191 2.388 2.057 2.108 1.651 1.346 0.864 16.205

ASME B18.6.3 Slotted 100 Degree Flat Countersunk Head Machine Screws Dimensions (Inch)

Nominal Size Head Diameter, A Head Height, H Slot Width, J Slot Depth, T Protrusion Above Gaging Diameter, F Gaging Diameter, G
Max. Min. Ref. Max. Min. Max. Min. Max. Min.
#0000 0.0210 0.040 0.035 0.009 0.008 0.005 0.008 0.004 - - -
#000 0.0340 0.060 0.055 0.014 0.012 0.008 0.011 0.007 - - -
#00 0.0470 0.087 0.080 0.020 0.017 0.010 0.013 0.008 - - -
#0 0.0600 0.112 0.095 0.026 0.023 0.016 0.013 0.008 0.020 0.012 0.074
#1 0.0730 0.137 0.118 0.031 0.026 0.019 0.016 0.010 0.021 0.013 0.098
#2 0.0860 0.162 0.142 0.037 0.031 0.023 0.019 0.012 0.022 0.014 0.121
#3 0.0990 0.187 0.165 0.043 0.035 0.027 0.022 0.014 0.024 0.015 0.144
#4 0.1120 0.212 0.188 0.049 0.039 0.031 0.024 0.017 0.025 0.016 0.167
#6 0.1380 0.262 0.235 0.060 0.048 0.039 0.030 0.022 0.028 0.017 0.214
#8 0.1640 0.312 0.282 0.072 0.054 0.045 0.036 0.027 0.031 0.019 0.261
#10 0.1900 0.362 0.329 0.083 0.060 0.050 0.042 0.031 0.034 0.021 0.307
1/4 0.2500 0.477 0.437 0.110 0.075 0.064 0.055 0.042 0.040 0.025 0.415
5/16 0.3125 0.597 0.550 0.138 0.084 0.072 0.069 0.053 0.047 0.030 0.526
3/8 0.3750 0.717 0.662 0.165 0.094 0.081 0.083 0.065 0.053 0.034 0.638