10 mm thimble shackle – code: 08.421.10 – Osculati

Osculati 10 mm lyre shackle (code 08.421.10)

The 10 mm lyre shackle Osculati, identified by code 08.421.10, is a hardware component designed for reliable connections in nautical and onboard plant engineering. The “lyre” (or “harp”) shape is appreciated when a connection point with a wider geometry than straight shackles is needed, useful for handling lashings, thimbles, terminals, and accessories with greater freedom of movement.

Made of AISI 316 stainless steel with finish polished, this shackle is suitable for applications where hardware is desired that is also aesthetically refined, as well as suitable for the marine environment. The product is forged and mirror polished, in line with the typical quality of Osculati components intended for onboard use.

Features and construction details

Material and finish

• Material: stainless steel AISI 316.
• Finishing: polished, with machining mirror polished.
• Process: component forged.

The use of AISI 316 is a common choice in nautical hardware for its suitability in environments exposed to humidity and salt spray. The polished finish contributes to a neat appearance of the installation and facilitates visual inspection of the component.

“Lyre” (cetra) shape

The lyre shape offers a more generous opening compared to a straight shackle, making it practical when connecting elements with different sizes or when it is desired to reduce interference between the shackle and the connected accessory. It is a configuration often chosen for connections on ropes, chains, blocks, eye bolts, and deck accessories, depending on the setup.

Size and product identification

• Size: OSCU00000329.
• Supplier code: 08.421.10.
• Supplier: Osculati S.r.l.

The size in mm allows selecting the shackle consistently with other components of the connection line (for example pin diameters, terminals, or accessories). For a correct choice, it is always advisable to check the dimensions and the fit with the element to be connected.

Loads (declared values for the selected variant)

• Working load: 1375 kg.
• Breaking load: 5500 kg.

These values help frame the use of the shackle within a connection system. During design or maintenance, it is good practice to consider the entire set of components (rope/chain, thimbles, blocks, eye bolts, etc.) and adopt sizing criteria consistent with the application.

Typical applications in nautical and onboard systems

The lyre shackle is a transversal element, used in many areas of the boat and in technical contexts where removable connections are needed. Some common uses include:

• Deck connections between accessories and attachment points (depending on the boat configuration).
• Blocks and connections on maneuvering components where the lyre shape can be more convenient for coupling.
• Fittings and maintenance: replacement of existing hardware or creation of temporary connections during onboard interventions.
• Plant engineering and hardware in general, when a stainless steel component with a refined finish is desired.

The choice of the lyre shape is often linked to the need to more easily accommodate the connected element, reducing geometric constraints and facilitating the orientation of the connection.

Advantages

Connection reliability and practicality

A shackle is, by definition, a connection point that must be simple to inspect and manage. This Osculati model combines a construction forged with a finish polished, making it suitable for installations where neat hardware is required and easily controllable over time.

• Lyre shape useful for connections with greater freedom of movement.
• AISI 316 stainless steel suitable for the marine environment.
• Glossy finish for a professional look and good inspectability.
• Clear coding (08.421.10) for reorders and spare parts management.

Integration into a hardware system

Choosing a shackle with appropriate material and finish helps maintain uniformity in the setup and reduce differences between exposed parts. This is particularly useful when working on multiple points of the boat or progressively replacing components.

Usage and operational notes

Selection and verification before installation

Before mounting the shackle, it is advisable to:

• Check the size (10 mm) in relation to the element to be connected and the available space.
• Check the declared loads (working load and breaking load) and evaluate the entire connection system.
• Visually inspect the component and contact surfaces, especially when replacing on existing 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 the nautical environment, hardware is subject to stresses and external agents. For proper management over time:

• Perform periodic checks on the shackle and connected components.
• Keep surfaces clean, especially in the presence of deposits or residues typical of onboard use.
• If in doubt about use or sizing, consider support from a technician or qualified installer.

Note on variants and product choice

This item refers to the 10 mm with code 08.421.10. version. If you are standardizing hardware or need to comply with specific measurements, it is useful to compare the size with other components already on board before purchase.

FAQ – Frequently Asked Questions

What material is the Osculati 08.421.10 lyre shackle made of?

It is made of AISI 316 stainless steel with a polished finish; the component is forged and mirror polished.

What is the size of this cricket at the zither?

The shackle size is 10 mm.

What loads are indicated for the 10 mm variant?

For the selected variant, a working load of 1375 kg and a breaking load of 5500 kg are indicated.

What is the purpose of the “lyre” shape compared to a straight shackle?

The lyre shape offers a wider geometry and can be more practical when connecting accessories with different bulk or when greater freedom of movement is desired at the connection point.

What is the Osculati product code for this item?

The Osculati product code is 08.421.10.