STAINLESS STEEL FINE THREAD HEXAGON THIN NUTS DIN 439

Fine Thread Hexagon Thin Nuts – FAQs

What is a fine thread hexagon thin nut?

A fine thread hexagon thin nut is a low‑profile (thin) hexagonal nut manufactured with a metric fine thread. The reduced height makes it suitable for space‑restricted assemblies, while the fine thread provides increased thread engagement and more precise adjustment compared to coarse thread equivalents.

When are fine thread hexagon thin nuts typically used?

Metric fine thread hexagon thin nuts are commonly used:

  • As a locking (jam) nut in conjunction with a standard or fine thread hex nut
  • In assemblies with limited axial space where a full‑height nut cannot be used
  • Where fine adjustment of components is required on threaded shafts
  • In applications where fine‑threaded bolts or studs are specified

They are most often used in light to medium‑duty locking or positioning applications.

Are fine thread hexagon thin nuts suitable as a main fastening nut?

No. Due to their reduced height, fine thread hexagon thin nuts are not intended to be used as the sole primary fastening nut in load‑bearing applications. They are best used as a secondary locking nut or where space constraints prevent the use of a full‑height nut.

What thread type do these nuts use?

We supply metric fine thread hexagon thin nuts.
These nuts must only be used with matching metric fine‑threaded bolts or studs and are not interchangeable with coarse thread fasteners.

What materials are available?

Our range of metric fine thread hexagon thin nuts is available in:

  • Stainless steel A2
  • Stainless steel A4

These materials are suitable for general and corrosive environments respectively.

Are fine thread hexagon thin nuts known by any other names?

Fine thread hexagon thin nuts may also be referred to as:

  • Fine pitch thin nuts
  • Fine thread jam nuts
  • Thin hex nuts with fine thread

All describe the same low‑profile hexagonal nut design using a metric fine thread.

How do I choose the correct fine thread hexagon thin nut?

When selecting a metric fine thread hexagon thin nut, consider:

  • Correct metric fine thread size and pitch to match the mating fastener
  • Available space and required nut height
  • Intended use, particularly whether the nut will act as a locking or positioning nut
  • Material selection (A2 or A4) based on the operating environment