Auto ts 4.8×32 aisi 316 countersunk – code: a4-7982-04.8×032 – Osculati

Osculati Auto TS self-tapping screw in AISI 316 (countersunk head, cross recess)

The Auto TS Osculati is a self-tapping screw in AISI 316 stainless steel, designed for technical fastenings and maintenance interventions where stainless hardware consistent with exposed environments and typical nautical and onboard plant applications is desired. This version is countersunk head with cross recess, a favored combination when you want to achieve a neat and flush surface result in visible installations.

The product is identified by the supplier code a4-7982-04.8×032 and belongs to the family of self-tapping screws flat countersunk head with cross recess, according to the manufacturer's indications (references UNI 6955 / DIN 7982).

Features and construction details

Countersunk head for flush finish

The countersunk head It is indicated when a cleaner and less protruding finish is desired compared to other geometries. In many applications, especially on panels, fairings, accessories, and covers, countersinking helps achieve a neat appearance and reduce external bulk.

Cross recess

The’cross recess It is a common solution for assembly and maintenance operations because it allows practical screwing with common tools. It is particularly useful when working in technical spaces or situations where speed and control are important.

Type: self-tapping screw (Auto TS)

Being a self-tapping screw, it is designed to create its own thread in the suitable support material. This makes it suitable for many assembly and replacement operations, especially when it is preferable to avoid using nuts or when access to the back of the support is limited.

Identification and references

• Brand / supplier: Osculati S.r.l.
• Supplier product code: a4-7982-04.8×032
• Family / manufacturer reference: UNI 6955 / DIN 7982 (as per manufacturer’s indications)

Typical applications (nautical and onboard plant engineering)

This self-tapping screw is suitable for a wide range of technical uses, where stainless steel small parts are a frequent choice for consistency with the environment and installed components. In particular, it can be used for:

• Installations and replacements of nautical accessories and deck components, when the support is suitable for self-tapping.
• Fastenings on panels and coatings, where the countersunk head helps maintain a neat finish.
• Assemblies in technical areas on board (lockers, compartments, bulkheads, supports), where access to the back may be limited.
• Routine maintenance and restorations, to replace existing screws with a consistent stainless steel solution.

As with any self-tapping screw, the choice of support and the correct preparation of the fixing point affect the final result. In case of doubts about the material or type of application, it is advisable to check compatibility with the support and the need for a pilot hole.

Usage and operational notes

Fixing preparation

To achieve a correct assembly, it is important to evaluate the support and its suitability for self-tapping. In many applications, an pilot hole adequate pilot hole and a countersink consistent with the head can be useful to promote seating and flush finishing. The choice of pilot hole depends on the material and thickness of the support: if no certain indications are available, it is preferable to carry out a preliminary check on a sample or a non-critical area.

Tools

The cross recess allows the use of common tools. To reduce the risk of damaging the recess or the head, it is advisable to use a well-conditioned insert and keep the tool well aligned during screwing.

Installations on different materials

Self-tapping screws are used on suitable supports (for example, sheets or technical materials compatible with self-tapping). In the presence of particular or layered materials, it is appropriate to evaluate the most suitable fixing solution and, if necessary, provide alternative systems (threaded insert, threaded rivet, etc.) according to the project.

Quick identification for reorder

Avoid excessive bends and constrictions during stowage; an orderly arrangement helps keep the rope ready for use. Osculati code a4-7982-04.8×032. This facilitates alignment with technical documentation and any onboard bill of materials.

Note

The references UNI 6955 / DIN 7982 are reported according to the manufacturer’s indications for the family of flat countersunk head self-tapping screws with cross recess. For specific design requirements, always check the updated technical documentation of the component and the application requirements.

FAQ – Frequently Asked Questions

What type of head does this Auto TS Osculati screw have?

It is a self-tapping screw with a countersunk (flat) head, designed for a neater finish and flush surface in visible applications.

What is the screw material?

The screw is made of AISI 316 stainless steel, a typical choice for small parts intended for nautical applications and onboard systems.

What type of screwdriving imprint does it use?

Uses a cross-shaped imprint, practical for assembly and maintenance with common tools, keeping the tool well aligned.

Which regulatory references are associated with the product family?

According to the manufacturer's indications, the family refers to UNI 6955 / DIN 7982 for flat countersunk self-tapping screws with cross recess.

What is the supplier code to identify the product?

The supplier product code is a4-7982-04.8×032, useful for reorder and spare parts management.