3/8" Square Head M Plug in Corrosion-Resistant Brass – CR – code: 7290C – Maestrini

3/8" square head M plug in anti-corrosion brass (CR) Maestrini – code 7290C

The 3/8" square head M plug in anti-corrosion brass Maestrini (code 7290C) is a component designed for closure and the protection of threaded connections in the field of plant engineering. The presence of the square head makes the plug practical to handle during installation and maintenance operations, especially when working on lines and connection points that require quick and orderly interventions.

Made of anticorrosion brass, this plug is suitable for contexts where a material traditionally used in fittings and hydraulic components is desired, with attention to durability over time and detail care. It is a consistent choice for those looking for a replacement or a completion component for systems and fittings, maintaining a clear and recognizable coding.

Features and construction details

This item belongs to the category Hydraulics and fittings and is uniquely identified by the manufacturer's code. The description summarizes the main elements useful for identifying and ordering the replacement.

Distinctive elements of the product

• Type: M plug (male) for closing threaded connections.
• Operating imprint: square head, useful for grip and tightening with suitable tools.
• Size: , in the.
• Material: anticorrosion brass.
• Brand/Supplier: Maestrini (MAESTRINI S.R.L. SOLE SHAREHOLDER COMPANY).
• Supplier product code: 7290C.

Why the square head is useful

The square head it is a classic solution for plugs: it offers a defined gripping surface and allows for more immediate handling compared to less pronounced profiles. In maintenance contexts, where accessibility can be limited, a simple and recognizable geometry helps to intervene more practically, reducing the risk of slipping during tightening or loosening.

Anti-corrosion brass: a typical choice for fittings and plugs

The’brass is a material widely used in fittings and closing components thanks to its general workability and use in hydraulic fields. The term corrosion protection indicates a product orientation towards applications where good durability over time is desired, in line with the needs of technical systems and operational contexts subject to periodic maintenance.

Typical applications

A male plug like this is normally used to close a threaded outlet, protect an unused branch or complete a connection point awaiting a future link.

Where it can be used

• Hydraulic systems and service lines where it is necessary to close a male thread.
• Fittings and manifolds with outlets prepared but not used.
• Maintenance and restoration: temporary or permanent closure of a connection point.
• Onboard systems: interventions on technical lines and accessory components, depending on the system configuration.

Spare parts and quick identification

For those who manage spare parts and components in an orderly manner, the presence of the code 7290C and the brand Maestrini facilitates product identification and consistency with bill of materials, internal technical sheets, or procurement procedures.

Operational advantages

Although it is a simple component, a properly selected cap contributes to the cleanliness and operational safety of the system, preventing open connections and reducing the possibility of contamination or unwanted ingress at the closure point.

Strengths in daily use

• Neat closure of unused threaded branches and outlets.
• Maneuverability favored by the square head, practical for installation and maintenance.
• Brass material suitable for typical applications in fittings and hydraulics.
• Clear coding (7290C) for reorder and spare parts management.
• CR finish as named, useful for aesthetic and supply uniformity when working on systems with coordinated components.

Usage and installation notes

To achieve a correct result, it is important to check the 3/8" size and the match with the thread of the seat where the cap will be installed. During assembly, it is recommended to use tools suitable for the square head, avoiding unnecessary force and paying attention not to damage the counterpart's thread.

Good practices

• Preliminary check: check size and thread compatibility before installation.
• Clean surfaces: ensure that the threaded seat is clean and free of residues.
• Controlled tightening: tighten progressively with a tool suitable for the square head.
• Maintenance: in case of periodic disassembly, check the condition of the thread and the integrity of the component.

Note on specifications and component choice

This product is identified as 3/8" square head M cap in anticorrosion brass – CR. If you are replacing an existing component, always compare the size and type of the plug with the removed piece or the system documentation. In case of doubts about the choice, it is advisable to refer to the code 7290C and the brand Maestrini for consistent procurement.

FAQ – Frequently Asked Questions

What is a square head M plug?

It is a male plug (M) designed to close a threaded connection. The square head provides a practical grip for handling with suitable tools.

What is the size of this Maestrini plug?

The size indicated for this item is 3/8″.

What material is the 7290C cap made of?

The cap is made of anti-corrosion brass, as stated in the product name.

What is the purpose of the CR finish/indication?

CR is the indication reported in the product description and identifies the finish/variant as coded by the manufacturer.

How can I correctly identify the spare part?

For a unique identification, refer to the Maestrini brand and the supplier product code 7290C, as well as the size 3/8″ and the type with square head.