Nut A2 mm 5 – code: DIA25

Nut A2 mm 5 – code DIA25

The nut A2 mm 5 (code DIA25) is a metal small parts component designed for the assembly and fastening of threaded elements in technical contexts. The term A2 identifies a family of stainless steels commonly used where good corrosion resistance is sought in general applications, including those typical of maintenance and onboard plant engineering.

Size: mm 5

The indicated measurement is mm 5 (often referring to the nominal thread). To avoid errors during ordering or installation, it is advisable to verify the match with the screw or stud on which it will be mounted, checking the pitch and thread standard of the existing component.

Codes and identification

• Product code: DIA25
• SKU: MOLIN00000039
• Supplier: F.LLI MOLINO SRL
• Supplier product code: DIA25

This information is useful for warehouse management, reorder requests, and alignment with bill of materials or internal technical documentation.

Product type

It is a nut for mechanical fastenings. The specific geometry (for example hexagonal or other shape) is not indicated in the available data: if you are replacing an existing component, also consider the size and accessibility with the tool based on your application.

Typical applications

The A2 mm 5 nut is suitable for many mounting and maintenance situations where small threaded elements are used. In a nautical and onboard plant engineering context, it can be used, for example, for:

• Hardware assemblies and small parts on paneling, supports, and brackets.
• Fastenings on plant engineering components (supports, collars, brackets), when the screws require a compatible nut.
• Restoration interventions on loosened fastenings or on damaged/rusted nuts.
• Fittings and refitting where it is preferred to use stainless steel small parts for material uniformity.

For particularly exposed applications or with specific requirements (loads, vibrations, aggressive environment), it is good practice to evaluate the entire fastening set (screw, washers, any locking systems) and the correct assembly procedure.

Usage and operational notes

Compatibility check

Before installation, check that the thread of the nut is compatible with the screw/stud. If you are replacing an existing nut, a direct check of the removed component (size and standard) is the simplest method to avoid incompatibilities.

Assembly and tightening

• Make sure that the contact surfaces are clean and free of residues that could compromise tightening.
• Screw the nut manually for the first turns, to reduce the risk of damaging the thread.
• Complete the tightening with an appropriate tool, depending on accessibility and fastening configuration.

In applications subject to vibrations or where greater tightening stability is required, consider adopting complementary solutions (for example suitable washers or locking systems) based on your plant’s specifications.

Maintenance and replacement

As with all small parts, it is advisable to periodically inspect fastenings: if the nut shows signs of thread damage, deformations, or difficulty in screwing, it is appropriate to proceed with replacement to maintain assembly reliability.

Note on description and available data

The card reports the provided information: material A2, size mm 5 e code DIA25. Details such as shape, standards, finish or packaging are not indicated and therefore are not declared.

FAQ – Frequently Asked Questions

What is the A2 mm 5 DIA25 code Nut?

It is a stainless steel A2 nut in size mm 5, identified by the product code DIA25. It is designed for fastening and assembly with compatible screws in technical applications.

Is this nut suitable for marine applications?

It is a component made of A2 stainless steel, a material commonly used in nautical contexts and onboard plant engineering for general applications. The final choice depends on the environment and the fastening requirements.

How do I check compatibility with my screw?

Check that the 5 mm size and the thread standard/pitch are compatible with the screw or stud. If you are replacing a component, directly compare the removed nut.

Which codes can I use for reordering?

You can use the code DIA25 (also as supplier product code) and the SKU MOLIN00000039 to quickly identify the item.