3/4" Square Head M Plug in Anti-Corrosion Brass – CR – code: 7290E – Maestrini

3/4″ square head M plug in CR Maestrini anticorrosion brass (code 7290E)

The 3/4″ square head M plug Maestrini, made of CR anticorrosion brass, is a component designed for threaded end closure and for completion or maintenance interventions on systems and connection lines. The presence of the square head facilitates grip with common tools, making assembly and disassembly more practical during workshop or onboard operations.

This product sheet is dedicated to the version identified by Maestrini code 7290E, indicated for applications in the field of , is a practical component for processing and assembly in the and, more generally, in plant engineering contexts where a male plug with simple and immediate operating geometry is required.

Product features and details

Type and configuration

• Type: cap M (male)
• Maneuver: square head for wrench/tool grip
• Size: 3/4″

Material

• Material: CR anticorrosion brass

CR anti-corrosion brass is commonly chosen in plant engineering for its suitability in contexts where a robust metallic material suitable for continuous use is desired. In the absence of further standard specifications or treatments, the product is conservatively described based on the available information.

Identification and supply

• Brand / Supplier: Maestrini
• Supplier product code: 7290E
• SKU: MAES00000048

For proper management of reorder, bill of materials, and scheduled maintenance, it is recommended to refer to the code 7290E and the SKU indicated, so as to reduce the risk of confusion with similar variants by size or geometry.

Typical applications

The 3/4″ square head M plug is used as a closing element in many operational situations, especially when it is necessary seal or protect a connection point not used or temporarily excluded from the circuit.

In hydraulic systems and fittings

• Closing of outlets on manifolds, fittings, or unused branches.
• Maintenance interventions where it is necessary to isolate a line or access point.
• System completion during assembly, when some utilities are prepared but not immediately connected.

In nautical and onboard plant environments

In the nautical context, the availability of reliable plugs and closures is useful for managing modifications, preparations, and restorations on technical lines. This model in CR anti-corrosion brass can be considered for onboard uses consistent with the size and threading of the point to be closed, maintaining a cautious approach in the choice based on the real conditions of the system.

Operational advantages

Although it is a simple component, a correctly selected plug helps maintain order and functionality in the system. Below are some practical advantages related to the product configuration.

Square head: immediate grip

The square head is an appreciated solution because it allows direct operation with common tools. In many assembly and maintenance situations, this geometry makes it easier:

• the’screwing in technical spaces;
• the unscrewing during inspections or replacements;
• the management of components that are removed and reinstalled over time.

CR anti-corrosion brass: widely adopted technical choice

The use of CR anticorrosion brass meets the need to use a metallic material commonly used in fittings and hydraulic components. It is a typical choice when a component with good durability and suitable for technical contexts is desired, without resorting to more complex solutions than necessary.

Useful component for provisions and stock

In the workshop and on board, having plugs of the correct size available can simplify many activities: from temporarily closing a line to protecting a threaded point during processing or transport. This model, clearly identified by the code 7290E, is suitable to be managed as a spare part or as a system completion element.

Usage and important notes

Verification of size and threading

Before purchase and installation, it is essential to verify that the size 3/4″ is correct for the installation point and that the thread of the plug is compatible with that of the seat. In the absence of further technical details in the datasheet, compatibility must be confirmed on the existing component or on the system documentation.

Mounting: good practices

For an orderly installation and to facilitate any future interventions:

• thoroughly clean the threaded seat before installation;
• screw in carefully avoiding forcing and misalignments;
• use tools suitable for the square head for a stable grip.

Any sealing materials (if provided by the type of fitting or system practice) must be chosen based on the specifications of the system being worked on.

Maintenance and replacement

During periodic checks or interventions on lines and fittings, it is good practice to inspect the condition of the plug and the seat: any signs of wear, damage, or difficulty in operation may indicate the need for replacement. To maintain consistency in spare parts, refer to the Maestrini code 7290E.

FAQ – Frequently Asked Questions

What is a square head M plug?

It is a male (M) plug designed to close a threaded seat. The square head is for operation with tools, facilitating screwing and unscrewing.

What is the size of this Maestrini plug?

The size indicated for this model is 3/4″.

What material is the cap made of?

The plug is made of CR anti-corrosion brass, as indicated in the product description.

What is the Maestrini product code for this version?

The supplier product code is 7290E (SKU: MAES00000048).

How do I check if it is compatible with my system?

Check that the 3/4″ size is correct and that the plug's threading is compatible with that of the seat to be closed, by comparing the existing component or the plant documentation.