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Plastic screw-in plug / cap male thread M26x1,5

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€0.32

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pcs

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Manufacturer: HYDRON hydraulika siłowa (go to products)

Shipping time: 24 hours

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from €3.62 - GLS Courier (Poland)

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M26x1,5 threaded plastic plug / cap

The M26x1,5 threaded plastic plug is a protective cap with an external metric thread, designed for temporary protection of hydraulic openings and connections. Made of plastic, the product helps protect the interior of hoses, manifolds, cylinders, valves, and other components from dust, debris, metal shavings, and contamination during repairs, transport, storage, and assembly.

The M26x1,5 plastic plug has a male thread with a nominal diameter of 26 mm and a pitch of 1,5 mm. It allows for temporary closing of an open connection equipped with a compatible female thread. It is useful when replacing hydraulic hoses, servicing agricultural, construction, and industrial machinery, and preparing components for storage or shipping.

Important: the M26x1,5 plastic plug does not handle pressure loads. It must not be used to close hydraulic or pneumatic systems operating under pressure.

Color information: the product is available in various colors, which are packed and shipped randomly. The color of the delivered plug may differ from the one shown in the photo.

Technical parameters of the M26x1,5 plastic plug

Product type: protective plug, threaded plastic cap.
Connection type: male thread (GZ).
Thread size: M26x1,5.
Thread system: metric ISO.
Nominal thread diameter: 26 mm.
Thread pitch: 1,5 mm.
Standard metric thread profile angle: 60°.
Material: plastic.
Purpose: temporary protection of connections and threaded openings.
Pressure operation: not allowed.
Color: various colors, randomly packed.
Application: protecting hoses, manifolds, cylinders, and other hydraulic components.

Application of the M26x1,5 protective cap in power hydraulics

The M26x1,5 plastic threaded plug is used for temporary protection of open connections during service work, technical inspections, hose replacement, and maintenance of hydraulic equipment. It can be used in compatible openings of manifolds, cylinders, valves, and other elements equipped with an M26x1,5 female thread.

The protective cap is also useful during the disassembly of agricultural, construction, and industrial machinery components. It helps reduce the entry of contamination into the interior of an open connection before the component is re-installed in the system.

Metric thread M26x1,5 – dimensions and identification

The designation M26x1,5 specifies an ISO metric thread with a nominal diameter of 26 mm and a pitch of 1,5 mm. The standard metric thread profile has a 60° angle. In the case of the plastic plug, the male thread is designed to work with a properly matched female thread.

The M26x1,5 thread should not be confused with M26x2 or other threads with a similar diameter. The difference in pitch results in a lack of interchangeability, even if the nominal diameters are identical. An attempt to screw in the wrong cap can damage the plastic thread of the plug or the connection being protected.

A caliper and a metric thread pitch gauge can be used to identify the thread. Both the diameter and the thread pitch should be checked, and ensure that the connection surface is clean and undamaged.

Protection of hydraulic hoses against contamination

During repairs and disassembly of hydraulic systems, open hoses and connections are exposed to contact with dust, dirt, sand, and metal shavings. The M26x1,5 plastic plug allows for temporary closing of a properly matched opening, helping to limit the access of contaminants to the interior of the component.

Maintaining the cleanliness of hydraulic components is important for the reliability of the entire system. Contaminants entering the oil can accelerate the wear of pumps, valves, manifolds, and sealing elements. Using protective caps during servicing and storage helps reduce this risk.

M26x1,5 plastic plug for transport and storage

The M26x1,5 protective cap is useful during the transport and storage of hydraulic parts. Temporary closure of a threaded opening helps protect its interior from dust and accidental entry of foreign bodies.

The product can be used in power hydraulics workshops, spare parts warehouses, and during the preparation of hoses and components for shipment. The plug provides protection while the element remains disconnected from an active system.

Plastic – construction of the protective cap

The M26x1,5 plug is made of plastic. Its task is to temporarily protect threaded openings from contamination during assembly, storage, transport, and service activities.

The plastic body is not designed to handle pressure loads. During assembly, excessive tightening should be avoided, as it could lead to damage to the thread or deformation of the plug body.

M26x1,5 plastic plug vs. pressure hydraulic plug

The M26x1,5 plastic cap serves a protective function and is used for temporary protection of connections. It is not intended to maintain operating pressure and cannot replace a hydraulic plug designed for pressure operation.

If a connection is to remain closed during device operation, a properly selected pressure plug with confirmed operating parameters, the correct thread, and an appropriate sealing method must be used. Just matching the M26x1,5 thread does not mean that the plastic cap can work under pressure.

How to choose an M26x1,5 plastic plug?

Before purchasing, ensure that the opening to be protected has a compatible M26x1,5 female thread. The basic selection parameters are a nominal diameter of 26 mm and a pitch of 1,5 mm. The thread condition and available mounting space should also be checked.

In the case of hydraulic components, it must be remembered that thread size compatibility does not automatically mean connection tightness or resistance to operating pressure. The product is intended solely for temporary protection of connections against contamination.

Assembly and disassembly of the M26x1,5 plastic cap

Before assembly, turn off the device, safely depressurize the system, and clean the threaded opening. Then, check the compatibility of the plug thread with the connection being protected.

The plug should be screwed in carefully, without using excessive force. If significant resistance appears during assembly, stop screwing and re-verify the thread fit. Before starting the system, the plastic cap must be removed and the final hydraulic connection made.

Various colors – random packing

M26x1,5 plastic plugs are available in various color variants. Colors are packed and shipped randomly; therefore, the color of the received product may differ from the one shown in the photo.

Color is not a basic technical selection criterion. The most important factors are the compatibility of the M26x1,5 thread and the protective purpose of the plug.

Technical specification

Parameter	Value
Product name	M26x1,5 threaded plastic plug / cap
Product type	Protective plug, plastic cap
Connection type	Male thread (GZ)
Thread size	M26x1,5
Thread system	Metric ISO
Nominal thread diameter	26 mm
Thread pitch	1,5 mm
Standard metric thread profile angle	60°
Material	Plastic
Pressure operation	Not allowed
Color	Various colors, randomly packed
Application	Temporary protection of hydraulic connections against contamination

Frequently Asked Questions (FAQ)

What thread does the M26x1,5 plastic plug have?

The plug has an external metric thread M26x1,5 with a nominal diameter of 26 mm and a pitch of 1,5 mm. It is used for temporary protection of compatible openings with a female thread.

Does the M26x1,5 plastic cap withstand hydraulic pressure?

No. The product does not handle pressure loads and cannot be used to close an operating hydraulic system.

What is the M26x1,5 plastic plug used for?

It is used for temporary protection of hoses, manifolds, cylinders, valves, and other components against contamination during transport, storage, assembly, and repairs.

Are M26x1,5 and M26x2 threads interchangeable?

No. Both threads have the same nominal diameter of 26 mm, but differ in pitch. M26x1,5 has a pitch of 1,5 mm, while M26x2 has a pitch of 2 mm. They should not be used interchangeably.

Can I choose the color of the plastic plug?

The product is available in various colors, packed and shipped randomly. The color of the received plug may differ from the one shown in the photo.

Can a plastic plug replace a steel hydraulic plug?

Not in a system operating under pressure. The plastic cap is a protective element. For closing operating connections, properly selected pressure plugs must be used.