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   12-28 UNF NF
Clear Hole = Drill ~ Probable Ø
  • Basic.216
  • +.00487/32 (.2188) ~ .2208
  • +.007#2 (.221) ~ .223
  • +.014#1 (.228) ~ .230
Cut Tap % ~ Drill ~ Probable Ø
  • 74%#15 (.180) ~ .182
  • 69%#14 (.182) ~ .184
  • 63%#13 (.185) ~ .187
Form Tap % ~ Drill ~ Probable Ø
  • 65%#8 (.1992) ~ .2012
Socket Head Screw Size
  • Basic Head Height.211 - .216
  • Basic Head Diameter.337 - .345
General Data
  • Internal Hex Size5/32
  • Stress Area in Sq. In..0258