Thread Size : 0.1380-32UNJC-3B, Width Across Corners (in) : 0.268, Weight (lbs/100) : 0.13, Ultimate Tensile Strength (lbs/Min) : 560, Locking Insert : Red Nylon (350? Max Performance), Performance : NASM25027 as Applicable, Series : NM408, Thread Type : UNJC, Thread Notes : AS8879, Material : Stainless Steel, Material Rating : AISI 303 or Equivalent, Finish : Plain, Overall Height (in) : 0.133, Hex Height (in) : 0.071, Width Across Flats (in) : 0.243-0.251