F1305/16 UNF Gun Nosed Die

Solid round die with a gun nose, for Unified National Fine thread UNF 5/16" with 24 TPI and 2A class of fit, dimensions according to ISO 2568 standard with 25mm outside diameter and 9mm thickness, HSS with lapped surface finish for threading in free machining and plain carbon steel, ferritic stainless steel and gray, malleable, ductile and compacted graphite cast-iron