STAINLESS STEEL HEXAGON THIN NUTS

Hexagon Thin Nuts – FAQs

What is a hexagon thin nut?

A hexagon thin nut is a low‑profile hexagonal nut manufactured to DIN 439. It has a reduced height compared to a standard hex nut, typically around half the thickness, and is intended for applications where space is limited or where a locking arrangement is required.

What are hexagon thin nuts commonly used for?

Hexagon thin nuts manufactured to DIN 439 are commonly used:

  • As a locking (jam) nut when tightened against a standard hex nut
  • In assemblies with restricted axial space
  • For setting or adjusting components on threaded shafts
  • In light to medium‑duty mechanical applications where reduced nut height is required

They are not designed to replace a standard hex nut in primary load‑bearing applications.

Are these nuts suitable as a main fastening nut?

No. Due to their reduced height and lower load‑bearing capacity, DIN 439 hexagon thin nuts should not be used as the sole fastening nut in applications subject to high loads. They are best used as a secondary locking nut or in applications where space constraints prevent the use of a full‑height nut.

What standard do these hexagon thin nuts conform to?

These hexagon thin nuts are manufactured in accordance with DIN 439, which defines their dimensional and general design requirements for thin hexagonal nuts.

What sizes and thread types do you supply?

We supply DIN 439 hexagon thin nuts in:

  • Metric thread sizes
  • Inch thread sizes

Availability of sizes may vary by material.

What materials are available?

Our range of DIN 439 hexagon thin nuts is available in:

  • Stainless steel A2
  • Stainless steel A4

These materials are supplied in both metric and inch thread forms.

Are hexagon thin nuts known by any other names?

Yes. DIN 439 hexagon thin nuts are also commonly referred to as:

  • Jam nuts
  • Half nuts
  • Thin hex nuts
  • Low‑profile hex nuts

These terms all describe the same low‑height hexagonal nut design covered by DIN 439.

How do I choose the correct hexagon thin nut?

When selecting a DIN 439 hexagon thin nut, consider:

  • Thread size and thread form (metric or inch) to match the mating bolt or stud
  • Available axial space in the assembly
  • Material selection (A2 or A4) based on the operating environment
  • Intended use, ensuring the nut is used as a locking or space‑saving solution rather than a primary load‑bearing fastener