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   3-56 UNF NF
Clear Hole = Drill ~ Probable Ø
  • Basic.099
  • +.002#39 (.0995) ~ .101
  • +.004#38 (.1015) ~ .103
  • +.0065#37 (.104) ~ .1055
Cut Tap % ~ Drill ~ Probable Ø
  • 74%#46 (.081) ~ .082
  • 68%45 (.082) ~ .083
  • 59%2.15mm (.0846) ~ .0856
Form Tap % ~ Drill ~ Probable Ø
  • 70%2.30mm (.0906) ~ .0916
Socket Head Screw Size
  • Basic Head Height.095 - .099
  • Basic Head Diameter.161 - .154
General Data
  • Internal Hex Size5/64
  • Stress Area in Sq. In..0052