Hexagon die nut, for Unified National Coarse thread UNC 1/2" with 13 TPI, dimensions according to ANSI standard with 1.1/16" width across flat and 1/2" thickness, made from chromium tool steel with bright finish for repairing damaged thread in free machining and plain carbon steel and gray, malleable, ductile and compacted graphite cast-iron
Applications:
P - Steel and cast steel(steels with alloy content ? 10% and a hardness of < 45HRC) - Primary use
M - Stainless steel(corrosion resistant steels with ? 11% chromium content) - Possible use
K - Cast Iron(castings of iron and carbon alloys with > 2% carbon content) - Primary use
N - Non-ferrous metals(metals including alloys without an appreciable amount of iron) - Primary use
For additional details please check the Manufacturer's site: