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   1-64 UNC NC
Clear Hole = Drill ~ Probable Ø
  • Basic.073
  • +.001#49 (.073) ~ .074
  • +.004#48 (.076) ~ .077
  • +.007#47 (.0785) ~ .0795
Cut Tap % ~ Drill ~ Probable Ø
  • 70%1.47mm (.0579) ~ .0589
  • 64%1.5mm (.0591) ~ .0601
  • 61%#53 (.0595) ~ .0605
Form Tap % ~ Drill ~ Probable Ø
  • 55%#51 (.067) ~ .068
Socket Head Screw Size
  • Basic Head Height.070 - .073
  • Basic Head Diameter.112 - .118
General Data
  • Internal Hex Size1/16
  • Stress Area in Sq. In..0026