This product is a hexagon die nut sized M27 x 1.5 mm, a hand and machine die intended for cutting, repairing or restoring external metric threads with a 1.5 mm fine pitch on rods, studs and bolts. Its primary use is to re-establish or create M27 x 1.5 external threads to the ISO metric 60° thread form, typically where a large-diameter fine thread is required.

The die is manufactured from high speed steel (HSS M2) and is supplied with a ground, bright finish; a black-oxide finish is often offered on similar items to improve corrosion resistance and reduce chip adhesion. The thread form conforms to the ISO metric profile (60°) and is produced to the dimensional recommendations of ISO 68-1 with thread tolerances in line with ISO 965 / BS 3643 and the basic pitch series described in DIN 13. The hexagon exterior provides flats for a standard spanner or die stock; the part can be used in a dedicated die stock or with a suitable spanner/socket drive for machine-assisted or manual threading where permitted.

M27 x 1.5 is commonly used in heavy engineering, automotive and agricultural equipment, hydraulic and pneumatic systems, and in specialist fabrication where fine-pitch large-diameter threads are required for strength and fine adjustment. The HSS material makes the die suitable for machining carbon steels, alloy steels and many non-ferrous metals; harder or highly alloyed materials should be checked before use and cutting fluid is recommended to prolong tool life and achieve a clean thread form.

Key benefits of this hexagon die nut include the wear resistance and edge retention of M2 HSS for repeated use, accurate reproduction of the ISO metric fine thread profile, and the convenience of a hexagonal body for rapid tightening and removal. The choice of finish affects corrosion resistance and chip behaviour, and the die is compatible with standard die stocks, spanners and machine holders designed for hexagonal dies.

Duchy Fasteners carries dies and die nuts across the metric range and offers M27 x 1.5 individually and in multipacks; please contact us for available finishes, sizes and pack quantities.