Auto tc 2.9×19 aisi 316 domed – code: a4-7981-02.9×019 – Osculati

Osculati self-tapping screw in AISI 316 for marine hardware

The Auto tc 2.9×19 Osculati is a self-tapping screw in AISI 316 stainless steel, designed for typical uses of nautics and onboard systems where reliable hardware consistent with the marine environment is required. This variant is identified by the supplier code a4-7981-02.9×019 and is associated with the screw family with cross recess according to references UNI 6954 / DIN 7981 reported in the original sheet.

It is a solution suitable both as replacement and for new installations, when the goal is to achieve a neat fastening and a refined finish, maintaining the continuity of the stainless steel hardware already present onboard.

Product features and details

Material: stainless steel AISI 316

Made of AISI 316, this screw is suitable for contexts where stainless steel is chosen for its suitability for use in the marine environment and for compatibility with onboard components and accessories commonly made of stainless steel.

Type: self-tapping screw

The configuration self-tapping is designed to simplify assembly operations in many hardware and outfitting applications, especially when working on panels, accessories, and components where a practical and quick fastening is useful. When choosing, it is always advisable to verify the correct match with the material to be fastened and with the hole preparation, according to your installation procedure.

Cross drive and regulatory references

The product is described as a screw with cross recess, with reference to UNI 6954 / DIN 7981 as indicated in the original datasheet. This helps maintain consistency with tools and hardware standards already used in the workshop or onboard, facilitating the replacement of existing screws with an equivalent item by family and setting.

Identification and codes

• Product: Auto tc 2.9×19 AISI 316
• Supplier: Osculati S.r.l.
• Supplier product code: a4-7981-02.9×019

For spare parts purchases, bill of materials management or reorders, the use of supplier code It is the safest way to avoid ambiguity between similar variants.

Typical applications in nautical and onboard systems

This stainless steel self-tapping screw is commonly used in maintenance and installation on boats and related contexts, where the hardware must be consistent with the environment and the materials already present. In particular, it can be considered for:

• Fixing accessories and small parts on onboard components, when a stainless steel screw is required.
• Restoration interventions on existing hardware, replacing worn or missing elements with an equivalent variant by type.
• Fittings and finishes on panels and components, where the cross recess is preferred for ease of assembly.
• Onboard systems (supports, brackets, small fixings), respecting the design choices and materials used.

The selection of the correct screw always depends on the type of support, the thickness of the materials, and the installation conditions: in case of doubt, it is advisable to compare the screw with the one already in use or with the indications of the accessory manufacturer to be fixed.

Usage and notes for selection

Variant verification and comparison with existing

Before installation, it is advisable to:

• check that the variant 2,9×19 is consistent with the screw to be replaced or with the assembly project;
• check the accessibility of the work area and compatibility with the tool to cross recess;
• ensure that the support and the accessory to be fixed are suitable for a screw self-tapping according to your installation procedure.

Good practices in the nautical field

Onboard, small parts are often subject to demanding conditions. For this reason, during maintenance it is useful to adopt a methodical approach: replace screws with equivalent items in material and type, avoid unnecessary mixing of different hardware, and keep the codes of the spare parts used for future interventions.

Note on the description

The commercial name of the product bears the wording Auto tc 2.9×19 AISI 316 and the reference to UNI 6954 / DIN 7981 for the family of screws with cross recess. For specific assembly needs, it is recommended to refer to the indications of the accessory to be installed or to the configuration already present onboard.

FAQ – Frequently Asked Questions

What material is the Auto tc 2.9×19 Osculati screw made of?

It is made of AISI 316 stainless steel, as indicated in the product name.

What is the Osculati supplier code for this variant?

The supplier product code is a4-7981-02.9×019.

What type of drive does the screw have?

The screw is indicated with a cross drive, referring to the UNI 6954 / DIN 7981 family reported in the original datasheet.

For what uses is it suitable in the nautical field?

It is suitable for fittings and onboard component assemblies and maintenance, both as a replacement and for new installations, when you want to use AISI 316 stainless steel small parts.

Can I use it as a replacement for an existing screw?

Yes, it can be used as a replacement if the 2.9×19 variant and the type (self-tapping with cross drive) correspond to the screw to be replaced. In case of doubt, it is advisable to compare measurements and configuration with the existing element.