Thread Size : 0.1120-40UNJC-3B, Width Across Corners (in) : 0.207, Weight (lbs/100) : 0.06, Locking Insert : Red Nylon (350?F Max Performance), Series : 1660, Thread Type : UNJC, Thread Notes : MIL-S-7742 or AS8879, Material : Stainless Steel, Material Rating : AISI 303 or Equivalent, Finish : Plain, Overall Height (in) : 0.11, Hex Height (in) : 0.07, Width Across Flats (in) : 0.181-0.189