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   8-32 UNC NC
Clear Hole = Drill ~ Probable Ø
  • Basic.164
  • +.0035#19 (.166) ~ .1675
  • +.0065#18 (.1695) ~ .1705
  • +.0105#17 (.173) ~ .1745
Cut Tap % ~ Drill ~ Probable Ø
  • 65%#29 (.136) ~ .1375
  • 60%3.50mm (.1378) ~ .1393
  • 55%#28 (.1405) ~ .142
Form Tap % ~ Drill ~ Probable Ø
  • 65%#25 (.1495) ~ .151
Socket Head Screw Size
  • Basic Head Height.159 - .164
  • Basic Head Diameter.262 - .270
General Data
  • Internal Hex Size9/64
  • Stress Area in Sq. In..014