Reduced double screw M-M 1/2"x3/8" – code: 0245D*C – Maestrini

Reduced double screw M-M Maestrini 1/2″ x 3/8″ (code 0245D*C)

The reduced double screw M-M Maestrini from 1/2″ x 3/8″ (code 0245D*C) is a fitting component designed to connect elements with male threading and different sizes, maintaining a linear and orderly configuration of the connection. It is a practical solution when, in installation or maintenance, it is necessary to switch from one diameter to another without changing the overall setup of the connection point.

Offered in yellow brass, this reduced double screw fits into the context of typical work and interventions of the’hydraulics and of the’plant engineering, including uses in the nautical field where managing fittings and adaptations is frequent. The presence of brand and product code facilitates spare part identification and reordering in case of replacement.

Features and construction details

This item is a reduced double screw M-M, that is a fitting with two male ends and with reduction between the two sides. It is indicated when it is necessary to connect components with compatible threads but different sizes, creating a direct transition between the two diameters.

Identifying data

• Brand: Maestrini
• Product code (Supplier product code): 0245D*C
• Type: reduced double screw M-M
• Size: 1/2″ x 3/8″
• Material: yellow brass

What does “M-M” and “reduced” mean”

The code M-M indicates that both ends are configuration. The wording reduced indicates that the two ends do not have the same size: in this case the screw allows the transition between 1/2″ and , in the. This type of component is often chosen to adapt an existing connection or to integrate parts with different sizes, without introducing superfluous elements.

Material: yellow brass

The manufacturing in yellow brass makes the component suitable for contexts where brass is commonly used for fittings and hydraulic small parts. When choosing and installing, it is good practice to verify the material consistency with the rest of the system and with the expected usage conditions.

Typical applications

The reduced double screw M-M is a useful element in many situations of plant engineering and maintenance, when an adaptation between two sizes is needed while maintaining a male connection on both sides. In technical fields, these fittings are often used as a quick and neat solution to complete an assembly or restore a line.

Plant engineering and maintenance

• Adaptation between components with different sizes in hydraulic lines or technical circuits.
• Localized replacement where the available replacement or the downstream/upstream component has a different size.
• Creating compact connections when longer or more complex solutions are to be avoided.

Nautical field (onboard systems)

In nautics and in onboard systems it may be necessary to integrate accessories, valves, or components with non-uniform sizes. A reduced double screw M-M allows managing the transition between diameters simply, maintaining a configuration consistent with the rest of the installation.

Usage and installation notes

For correct use, it is important to always verify that the reduced double screw is compatible with the system and the components to be connected. In particular, before installation it is advisable to check measurements and thread type required by the system.

Recommended checks before assembly

• Sizes: confirm that the requested sides are actually 1/2″ and , in the.
• Thread type: verify that the threading of the components to be connected is compatible with that of the screw.
• Spaces and clearances: assess the available space for screwing and possible access with tools.
• Material consistency: consider the compatibility of the yellow brass with the rest of the assembly.

Good practices

During assembly, operate carefully to avoid damage to the threads. If the system requires specific procedures or sealing materials, follow the instructions of the system manufacturer or the connected components. In case of doubt about compatibility, it is preferable to carry out a preliminary check before proceeding.

Note for reordering

For replacement requests or to standardize the onboard/workshop equipment, refer to Maestrini and to code 0245D*C, in addition to the size 1/2″ x 3/8″, so as to reduce the risk of error among similar variants.

FAQ – Frequently Asked Questions

What is a reduced double-ended M-M screw for?

It is used to connect two components with compatible female seats, when it is necessary to switch between two different sizes while maintaining a male connection on both sides.

What are the dimensions of this Maestrini reduced double screw?

The indicated size is 1/2″ x 3/8″, with reduction between the two sides.

What material is it made of?

The product is made of yellow brass.

How can I correctly identify the spare part for reordering?

For reordering, refer to the Maestrini brand, code 0245D*C, and size 1/2″ x 3/8″.

Is it suitable for nautical system installation and maintenance?

Yes, it is a typical component for system installation and maintenance and can also be used in the nautical field when it is necessary to connect different sizes, always checking compatibility with the system and the required threading.