Irwin 5/8 in.-18 NF Hexagon Machine Screw Die

The Irwin 5/8 in.-18 NF Hexagon Machine Screw Die is designed for precision external threading, rethreading, and repair operations. Its versatile hexagonal shape allows it to be used with standard hex die stocks or driven by standard wrenches and sockets when working in tight, limited-clearance spaces. Constructed from durable high carbon steel, this die provides reliable performance for maintenance professionals and workshop mechanics. It ensures clean, accurate national fine threads across a wide range of general shop and repair tasks.