Wide washer 12×36 aisi 316 – code: a4-9021a-12×036 – Osculati

12×36 wide washer in AISI 316 stainless steel Osculati

The 12×36 wide flat washer in AISI 316 stainless steel by Osculati is a small hardware component designed to complete fastenings and assemblies where it is useful to increase the bearing surface under the screw head or nut. In nautical and onboard plant environments, a “wide” washer is often chosen to better distribute the load on the supporting material and to achieve a neater and more finished clamping point, especially when working on surfaces you want to preserve.

This version is made of AISI 316, a common choice for marine environment applications and contexts where quality stainless steel hardware is preferred. The product is identified by the supplier code a4-9021a-12×036 (Osculati S.r.l.) and is cataloged with SKU oscu0000001534.

Product features and details

“Wide” geometry for a larger bearing area

The main feature of this washer is the geometry with increased outer diameter compared to a standard washer of the same nominal size. In practice, the bearing area is larger and can help to:

• reduce the localized pressure on the tightening point;
• improve the stability of the support on less rigid materials or on surfaces that you prefer not to mark;
• refine the tightening more cleanly, better covering any imperfections of the hole or the seat.

Material: stainless steel AISI 316

The’AISI 316 stainless steel it is frequently used in nautical hardware for its suitability in environments exposed to moisture and salt spray. In an onboard system, the choice of hardware material is often crucial to maintain a neat and easily maintainable assembly over time.

Note: corrosion resistance also depends on the conditions of use, the correct choice of metal pairings, and periodic maintenance. For critical applications, it is good practice to verify the suitability of the assembly (screw/nut/washer/support) based on the real context.

Identification and references

• Supplier: Osculati S.r.l.
• Supplier product code: a4-9021a-12×036
• SKU: oscu0000001534

These references are useful for reorders, bill of materials, and to maintain consistency in replacements during maintenance or refitting interventions.

Typical applications in nautical and onboard systems

A wide flat washer is used in many situations where you want to improve load distribution and achieve a more stable tightening. In nautical and plant engineering fields, it can be used transversely on various components and supports, for example:

• Fastenings on painted or coated surfaces, where a wider support helps reduce marks and localized crushing.
• Assemblies on panels and light structures, when you want to increase the contact surface under the nut or screw head.
• Maintenance and replacement of worn or unsuitable washers, to restore a neater tightening.
• Refitting and hardware updates, when you want to standardize stainless steel hardware and improve the perceived quality of the assembly.

Choosing a “wide” washer is often a simple and practical solution when you want to intervene on the tightening point without modifying the fastening architecture.

Usage and installation notes

Correct positioning

In a traditional fastening, the washer is placed between the support surface and the tightening element (screw head or nut). To achieve a neat result:

• check that the washer rests flat and that the surface is clean;
• check that the hole and seat do not have burrs or irregularities that could compromise the support;
• in case of delicate surfaces, consider using protections or precautions compatible with the application (without altering the correct function of the tightening).

Washer selection based on fastening

The size 12×36 identify the washer based on the nominal dimensions reported in the product name. For a correct match, it is advisable to verify the correspondence with the bolts and with the support hole, especially when working on existing components or previous installations.

In a nautical environment, it is good practice to carry out periodic checks of fastenings and the order of wiring/piping. If a clip is damaged or no longer suitable for containment, replacement with an equivalent spare (same size and code) helps maintain system consistency.

In nautical environments, it is normal to schedule periodic checks of fastening points, especially in areas exposed to splashes, moisture, or vibrations. A visual check of the washer and tightening can help identify any signs of wear or need for restoration early.

Summary: the wide washer 12×36 AISI 316 Osculati It is a practical solution for fastenings and edge assemblies where a wider support and a more refined finish of the tightening point are desired, with clear references for reordering and spare parts management.

FAQ – Frequently Asked Questions

What does “wide washer” mean in this product?

It indicates a flat washer with a larger outer diameter compared to a standard washer of the same nominal size, designed to increase the bearing surface under the nut or screw head.

For what uses is the 12×36 AISI 316 wide washer indicated?

It is suitable for fastening and assemblies in nautical and onboard plant environments, particularly when you want to better distribute the load and achieve a more refined tightening point.

What is the washer material and why is it used in nautical applications?

The washer is made of AISI 316 stainless steel, a material commonly chosen for marine environment applications and onboard hardware.

Which codes can I use to correctly identify the product?

The product is supplied by Osculati S.r.l. with code a4-9021a-12×036. The internal SKU is oscu0000001534.

Can I use it to replace an existing washer during maintenance?

Yes, it is often used in maintenance and refitting to replace worn washers or to improve the tightening bearing, verifying compatibility with the bolts and mounting seat.