Auto ts 5.5×50 aisi 316 countersunk code: a4-7982-05.5×050 – Osculati

Osculati Auto TS self-tapping screw in AISI 316: neat and reliable fastenings

The Auto TS Osculati is a self-tapping screw in AISI 316 stainless steel, designed for assembly and maintenance interventions where corrosion-resistant small parts and a refined finish are desired. This version is identified by the size 5,5×50 and by the supplier code a4-7982-05.5×050, useful for quick recognition, spare parts management and reordering.

The product is offered with family reference DIN 7982 / UNI 6955 as indicated by the manufacturer. In technical, nautical, and plant engineering fields, a stainless steel screw of this type is often chosen when a neat fastening appearance and good consistency with stainless steel components and accessories are desired.

Product features and details

Material: stainless steel AISI 316

The screw is made of AISI 316, a common choice for applications in exposed or potentially aggressive environments (e.g., nautical and plant engineering contexts), where stainless steel hardware is preferred to reduce frequent replacements and maintain a clean finish over time.

Type: self-tapping screw (Auto TS)

The series Auto TS identifies a self-tapping screw, suitable for machining and assemblies requiring practical and direct fastening. It is a typical solution for assembly small parts, repairs, and maintenance interventions when an easily available and standardized component is desired.

Head and recess

This screw is described with rounded head and cross recess. The combination is appreciated when a comfortable tightening with common tools and a neat visible head appearance are desired.

Size and identification

• Size: 5,5×50
• Supplier code: a4-7982-05.5×050
• SKU: oscu0000001440

Family regulatory references

The manufacturer reports the coding DIN 7982 / UNI 6955 as a family reference. This helps to place the product within a known type of self-tapping screws, especially useful when comparing similar items or replacing existing elements.

Typical applications (nautical, plant engineering, maintenance)

This stainless steel self-tapping screw is suitable for general fastening and assembly uses in contexts where the hardware may be exposed to moisture or where stainless steel small parts are preferred for aesthetic and functional uniformity. In particular, it can be considered for:

• Nautical maintenance- interventions on accessories, paneling, onboard components, and service fastenings.
• Plant engineering- assemblies and fastenings in technical fields where stainless steel screws are required for consistency with other metal elements.
• Hardware and repairs- quick replacements and restorations, when a standard screw identifiable by code and size is needed.

The choice of size and head type always depends on the component to be fastened and the support. If you are replacing an existing screw, matching measurement and type is the first criterion for a correct result.

Usage and operational notes

Verification of size and head type

Before purchase or installation, check that the size 5,5×50 should be consistent with the hole, material thickness, and intended application. If you are replacing an already installed screw, also check the head type and drive to maintain uniformity and compatibility with the available tool.

Installation during maintenance

In maintenance interventions, it is good practice to work with tools in good condition and with the correct insert for the cross drive, to reduce the risk of damaging the drive seat and facilitate any future disassemblies.

Note on standards and comparisons

The reference DIN 7982 / UNI 6955 is useful for orienting within the product family and for comparing equivalent items. In case of doubts about replacements or combinations, it is advisable to rely on measurement, material and supplier code, which remain the most immediate elements for correct identification.

Tip for tidying up

For quick reorders, keep the code a4-7982-05.5×050 and the SKU oscu0000001440: these are the most effective references to avoid errors among screw variants similar in shape or size.

FAQ – Frequently Asked Questions

What is the material of the Auto TS Osculati screw?

The screw is made of AISI 316 stainless steel, recommended when stainless steel hardware is preferred in technical and nautical fields.

What are the size and code of this version?

The size is 5.5×50. The supplier code is a4-7982-05.5×050 and the SKU is oscu0000001440.

What type of head and recess does it have?

It is described with a rounded head and Phillips drive, a common combination for practical tightening with common tools.

What is the purpose of the DIN 7982 / UNI 6955 reference?

It is a family reference reported by the manufacturer to classify the item in the self-tapping screw type and facilitate comparisons or replacements.

In which fields is this screw typically used?

It is suitable for assembly and maintenance in technical, nautical, and plant engineering fields, where a stainless steel self-tapping screw and a neat head finish are desired.