Brake pipe nut, 7/16 "x20 UNF thread suitable for a pipe with diameter of 4.75 mm
Inner diameter: 5mm
Overall length: 21mm
Thread length: 16mm
Hex key for 12mm key
Diameter over thread: 11mm
UNF - Unified fine thread
20 - Thread pitch - 20 threads per inch
Material steel, galvanized.