Auto tc 4.8×22 aisi 316 domed – code: a4-7981-04.8×022 – Osculati

Osculati self-tapping screw in AISI 316 with domed head

The Osculati self-tapping screw in AISI 316 stainless steel with rounded head is a hardware solution designed for technical fastenings where a reliable component is needed, neat in appearance and consistent with existing stainless steel installations. This item is identified by the supplier code a4-7981-04.8×022 and is commonly searched also through family references DIN 7981 and UNI 6954, useful for recognizing the type of screw during replacement or procurement.

In the nautical and onboard systems context, the choice of AISI 316 is frequent when stainless steel hardware suitable for demanding environments is desired. The domed head also offers a clean aesthetic finish and a typical bearing surface of this geometry, making it suitable for many mounting applications on accessories, panels, and hardware components.

Product features and details

Material: stainless steel AISI 316

The product is made of AISI 316, a common choice in the nautical field for stainless steel hardware. It is indicated when uniformity of materials with other already installed stainless steel components is desired and a solution suitable for maintenance and assembly on boats and systems.

Type: self-tapping screw

It is a self-tapping screw, designed for fastenings where the screw creates its own thread in the supporting material. This feature is often useful in practical machining and installations, especially when working on accessories and components where quick installation and standardized hardware are preferred.

Rounded head

The rounded head is frequently chosen when a neat visible finish and a rounded profile are desired. It is a typical solution for fastenings on surfaces where the head remains visible and a clean look without sharp edges is wanted.

Codes and references useful for identification

To facilitate warehouse management and component replacement, clear references are available:

• Brand/Supplier: Osculati S.r.l.
• Supplier product code: a4-7981-04.8×022
• Reference family: DIN 7981
• Reference family: UNI 6954

These indications are particularly useful when replicating an existing fastening or when maintaining consistency with hardware standards already adopted onboard.

Typical applications in nautical and plant engineering

This self-tapping screw in AISI 316 is suitable for many mounting and maintenance situations in nautical and technical fields, where stainless steel hardware is a recurring choice. In particular, it can be used for:

• Onboard maintenance and replacement of existing screws on accessories and hardware.
• Installation of components on panels, finishes, and non-structural parts where the head remains visible.
• Technical fastenings on Osculati or compatible accessories by type, when a clear and recognizable coding is desired.
• Restoration interventions on stainless steel hardware, to unify aesthetics and material with already present components.

As with any self-tapping screw, the choice of the support and the correct preparation of the fixing point affect the final result. In case of doubts about the material or the type of application, it is advisable to check the most suitable solution based on the component to be fixed.

Usage and operational notes

Support check and fixing preparation

Before installation, it is good practice to check the support material and the condition of the surface. In many applications, proper preparation of the fixing point helps to achieve a neater and more repeatable assembly. If replacing an existing screw, check that the seat is not damaged and that the new screw is consistent in type and geometry.

Choice of visible finish

The rounded head is recommended when the head remains visible and a rounded profile is desired. In the presence of aesthetic or space constraints, it is useful to evaluate the head geometry in relation to the component to be fixed and the available space.

Note on standards and identification

The references DIN 7981 and UNI 6954 are useful for recognizing the screw family and orienting in replacement. In professional contexts, including the Osculati supplier code in the bill of materials helps reduce ambiguity and speed up orders.

Product: Self-tapping screw in AISI 316 domed head Osculati – code a4-7981-04.8×022.

FAQ – Frequently Asked Questions

What type of screw is this Osculati item?

It is a self-tapping screw Osculati in stainless steel AISI 316 with a rounded head, identified by the code a4-7981-04.8×022.

What is the screw material?

The screw is made of AISI 316 stainless steel.

What are the DIN 7981 and UNI 6954 references indicated in the description for?

They are family references useful for recognizing the type of screw and facilitating replacements, comparisons, and procurement in the technical field.

In which contexts is this screw typically used?

It is commonly used in boating and onboard systems for assembly and maintenance of hardware accessories and components, especially when a stainless steel small parts consistent with the existing installation is desired.

What is the supplier's product code?

The supplier's product code (Osculati) is a4-7981-04.8×022.