Bolt 10×50 aisi 316 – code: a4-933-10×050 – Osculati

Bolt 10×50 in AISI 316 stainless steel Osculati (code a4-933-10×050)

The bolt 10×50 in AISI 316 stainless steel Osculati, identified by code a4-933-10×050, is a fastening element designed for technical assemblies where reliable tightening and good long-term holding are required in humid environments. It is a typical choice for applications in the nautical and plant engineering, especially when you want to use a material commonly adopted for its corrosion resistance in marine or otherwise aggressive environments.

The product belongs to the family of fully threaded hex head screws/bolts, with reference to standards UNI 5739 and DIN 933, useful for maintaining consistency in spare parts management and hardware selection during maintenance, refitting, or new installations.

Features and construction details

This bolt is designed to provide practical and controllable fastening, thanks to the combination of hexagonal head and fully threaded threading. The geometry allows easy tightening with standard tools and facilitates assembly and disassembly operations, typical of onboard maintenance and systems.

Material: stainless steel AISI 316

The’AISI 316 is a stainless steel frequently chosen in the nautical field and in humid environments, because it is commonly appreciated for its corrosion resistance. It is suitable when a hardware more suitable than non-stainless solutions or stainless steels less oriented to marine use is desired.

Hex head

The hexagonal head is a very common configuration in technical hardware: it allows firm and repeatable tightening and is convenient when working in technical spaces, on brackets, supports, and structures where it is important to control the tightening torque and visually verify the correct placement.

Fully threaded threading (UNI 5739 / DIN 933)

The fully threaded threading is useful in many assembly applications because it allows managing tightening on variable thicknesses and using the bolt with nuts and washers in different configurations. The reference to UNI 5739 and DIN 933 helps maintain uniformity in component selection, especially when working on systems or fittings that follow established hardware standards.

Product identification

• Brand / supplier: Osculati S.r.l.
• Supplier product code: a4-933-10×050
• Type: hex head bolt/screw fully threaded

Typical applications (nautical and plant engineering)

The 10×50 AISI 316 bolt is commonly used in maintenance and assembly where resistant and easily inspectable hardware is required. The combination with nuts and washers makes it suitable for many fastening configurations, both on structures and on components installed onboard.

Onboard maintenance and refitting

In the nautical field, it is common to have to replace or restore fastenings subject to humidity, splashes, or condensation. A bolt in AISI 316 is often chosen to maintain consistency with the stainless hardware already present and to reduce the need for frequent replacements due to surface oxidation or degradation in the marine environment.

Brackets, supports, and technical assemblies

The hex head and full threading make it practical for:

• brackets of components and accessories;
• supports and fastening plates;
• assemblies with nuts and washers, where it is useful to adjust tightening and maintain the possibility of disassembly.

Plant engineering and components

In plant engineering contexts (for example on support structures, ducts, brackets, or light carpentry), a stainless steel bolt may be preferred when the installation is exposed to humidity or when material uniformity with other fastening elements present is desired.

Usage and installation notes

To achieve a neat and functional fastening, it is good practice to select compatible components and carefully install them, especially in nautical environments where vibrations, humidity, and thermal cycles can affect the bolting.

Matching with nuts and washers

The bolt is normally used together with nut and, when appropriate, with washers to distribute the load and protect the contact surfaces. Choosing suitable washers can also be helpful to improve tightening stability on softer materials or painted surfaces.

Material consistency

In exposed applications, it is advisable to maintain consistency among the bolting materials (bolt, nut, washers) to reduce typical issues of dissimilar metal pairings. In case of doubts about the correct combination, it is appropriate to verify the assembly configuration and the usage environment.

Periodic inspection

In nautical and plant engineering fields, it is common to provide a periodic check of the tightenings, especially on components subject to vibrations or stresses. A visual and functional check helps keep the assembly in order and to intervene promptly if necessary.

Quick identification for reorder

To facilitate reordering and spare parts management, refer to the Osculati code a4-933-10×050 and the family DIN 933 / UNI 5739. This approach reduces the risk of inconsistent replacements and helps maintain uniformity in the installed hardware.

FAQ – Frequently Asked Questions

Is this bolt made of AISI 316 stainless steel?

Yes, the product is indicated as a bolt made of AISI 316 stainless steel, a common choice for applications in humid or marine environments.

What type of head does the bolt have?

The bolt has a hexagonal head, useful for practical tightening with standard tools and for easy control during maintenance.

Is the threading partial or fully threaded?

It is a fully threaded bolt, belonging to the family of screws/bolts type UNI 5739 / DIN 933.

What is the Osculati reorder code?

The supplier product code is a4-933-10×050. Using it as a reference helps to quickly identify the item for replacements or reorders.

For what uses is it suitable in the nautical field?

It is typically used for onboard maintenance, brackets, supports, and assemblies with nuts and washers, where stainless steel bolts suitable for humid environments are desired.