1"1/2 Square Head M Plug in CR anticorrosion brass – code: 7290H – Maestrini

Male plug with square head in Maestrini anti-corrosion brass CR (code 7290H)

The square head M plug Maestrini is a component for systems and fittings, designed for the closure or protection of a threaded connection when a line is not used, is awaiting connection, or requires isolation during maintenance interventions. Made of CR anticorrosion brass, it is a solution suitable for technical contexts where reliable materials and practical handling during assembly and disassembly are required.

This version is identified by the Maestrini code 7290H and is offered in the size 1″1/2. The square head facilitates grip with common tools, making the operation easier in technical spaces and installations where a well-defined maneuvering point is useful.

Features and construction details

Type and geometry

• Type: cap male (M) for closing a female threaded seat.
• Head: quadra, designed for simple operation with suitable keys/tools.
• Size: 1″1/2.

Material

• Material: CR anticorrosion brass.

The use of anti-corrosion brass CR is typical of fittings and components intended for technical systems, where material choice contributes to durability over time and component stability under real use conditions.

Product identification

• Manufacturer: Maestrini S.r.l. Sole Shareholder Company
• Product code: 7290H
• SKU: MAES00000193

Typical applications

A male plug is a simple but essential element in many system configurations. In hydraulic fields and onboard system components, it can be used in various operational situations, for example:

• Temporary closure of a branch or a prepared point, awaiting system completion.
• Isolamento of a line or a connection during maintenance, inspection, or component replacement.
• Protection of the female thread from contaminants, dust, or impacts during storage and handling.
• Modular configurations where some outlets remain unused and must be closed in an orderly manner.

The presence of the square head makes the cap easy to handle even when it is necessary to periodically open/close the connection.

Operational advantages

Simple operation and tightening control

The square head offers a clear and stable grip point. This helps to work with greater control during tightening and loosening, especially in technical contexts where speed of intervention and repeatability of operations are important.

Material suitable for technical systems

The’CR anticorrosion brass is a common choice for fittings and accessories intended for systems, thanks to its general characteristics of robustness and resistance in typical sector applications.

Order and safety of the system

Properly closing an unused connection helps keep the system more orderly and reduces the risk of unwanted entries into the line. A dedicated cap is a clean and immediate solution compared to temporary closures.

Usage and installation notes

Verification of size and threading

Before purchase and installation, verify that the size 1″1/2 is consistent with the connection to be closed and that the cap thread is compatible with the female seat of the system. In case of doubts about the type of thread or coupling, it is advisable to compare the component with the one already installed or with the system documentation.

Sealing and accessories

The sealing of a threaded connection also depends on the correct preparation and any sealing materials/accessories provided by the system (not included). Use solutions suitable for your application context and the installation procedures adopted.

Assembly and maintenance

• Operate on the system under safe conditions, following the prescribed intervention procedures.
• Tighten with tools suitable for the square head, avoiding improper maneuvers that could damage the component or the seat.
• During disassembly, proceed carefully so as not to damage the female thread.

Note

The product is identified as Square head M plug 1″1/2 in anti-corrosion brass CR Maestrini, code 7290H. For spare parts needs and system uniformity, refer to the product code.

FAQ – Frequently Asked Questions

What is a male (M) square head plug used for?

It is used to close or protect a female threaded connection when a line is not in use, is awaiting connection, or during maintenance interventions.

What is the size of this Maestrini plug?

The size indicated for this model is 1″1/2.

What material is ’anti-corrosion brass CR“?

It is a type of brass suitable for fittings and system components, chosen for use in technical contexts where good long-term resistance is important.

What is the Maestrini product code for this plug?

The Maestrini product code is 7290H (SKU: MAES00000193).

What advantage does the square head offer?

The square head facilitates grip with suitable tools and makes tightening and loosening operations more practical, especially in technical spaces.