Spacer, with continuous internal thread Free-cutting steel Zinc plated
When Hexagon Spacer length = Internal thread length
Then the spacer has a continuous thread.
Hexagon Spacer length = 15mm
Internal thread lengths = 15mm
Hexagon Across the Flats ( AF ) = 7mm
Thread pitch = M4 x 0.7mm
Depending on manufacturer and availability parts with slightly different dimensions but with equal functionality may be supplied.