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Blanking plug / plastic screw-in cap 1.1/16" UNF

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Manufacturer: HYDRON hydraulika siłowa (go to products)

Shipping time: 24 hours

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from €3.64 - GLS Courier (Poland)

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Blanking plug / threaded plastic cap male thread 1.1/16" UNF

The plastic threaded blanking plug male thread 1.1/16" UNF is a protective cap with an external inch thread, intended for the temporary closing of compatible hydraulic ports and connections. The product is made of plastic and helps protect hoses, valves, cylinders, and other components from the ingress of dust, dirt, shavings, and contamination during transport, storage, repairs, and device assembly.

The 1 1/16" screw-in blanking plug provides practical protection for open hydraulic connections. It allows for the temporary closing of a properly matched threaded port until the final connection is made. The product is used during service work, machine maintenance, and preparing hydraulic components for transport.

Important: the plastic male thread 1.1/16" UNF blanking plug does not transfer pressure loads. It is not intended for closing hydraulic systems operating under pressure.

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

Technical parameters of the plastic blanking plug 1.1/16" UNF

Product type: protective blanking plug, threaded plastic cap.
Connection type: male thread.
Nominal thread size: 1 1/16".
Thread system: unified inch, commercially referred to as UNF.
Standard hydraulic thread designation for this size: 1 1/16"-12 UN.
Standard number of threads: 12 per inch (12 TPI).
Standard thread pitch: approximately 2.117 mm.
Nominal thread diameter: 26.9875 mm.
Material: plastic.
Intended use: temporary protection of threaded ports and connections.
Pressure resistance: the product does not transfer pressure loads.
Color: various colors, packed randomly.
Application: protecting hoses, valves, cylinders, and other hydraulic components.

Use of the 1 1/16" protective cap in power hydraulics

The plastic threaded male thread 1 1/16" cap is used for the temporary protection of hydraulic ports and connections equipped with a matching internal thread. It can be used during hose replacement, device repairs, machine maintenance, and preparing parts for transport and storage.

The blanking plug is used in compatible connections of hydraulic valves, cylinders, and hose ends equipped with inch threads. It helps limit the contact of the components' interior with dust and dirt before they are reconnected to the system.

1 1/16"-12 UN male thread – dimensions and identification

The 1 1/16" designation corresponds to a nominal thread diameter of 26.9875 mm. In standard hydraulic connections of this size, a 1 1/16"-12 UN thread occurs, having 12 threads per inch.

In commercial naming, threads of this type are often generally referred to as UNF, however, for the 1 1/16"-12 size, the correct technical designation is UN. Before assembly, verify the compatibility of the actual thread of the blanking plug with the port being protected.

A caliper and an inch thread pitch gauge can be used for identification. Both the diameter and the number of threads per inch should be checked. The matching nominal size alone does not guarantee a fit for elements with different pitches.

Protection of hydraulic hoses against contamination

When disconnecting hydraulic systems, open hoses and connections are exposed to contact with dust, dirt, sand, metal shavings, and other contaminants. The 1.1/16" plastic blanking plug allows for the temporary closing of a compatible port, helping to keep its interior clean.

Contaminants entering power hydraulic systems can accelerate the wear of pumps, valves, and distributors. Protecting disconnected connections is an essential element of proper service work organization.

Plastic 1 1/16" blanking plug for transport and storage

The protective cap is useful during the transportation and storage of hydraulic parts. It allows for the temporary protection of a threaded port against dust and accidental entry of contaminants.

The product can be used in repair shops, spare parts warehouses, and during the preparation of components for shipment. Before starting the device, the blanking plug must be removed and the final hydraulic connection must be made.

Plastic – lightweight protective blanking plug

The male thread 1.1/16" UNF blanking plug is made of plastic. Its task is to protect connections against dirt during storage, transport, and servicing.

The plastic construction is not intended to transfer pressure loads. During assembly, excessive tightening should be avoided, as it could lead to thread damage or deformation of the cap body.

Protective blanking plug vs. hydraulic pressure plug

The 1 1/16" plastic blanking plug is used for the temporary protection of connections and cannot replace a hydraulic plug designed for closing a system operating under pressure.

If the port is to remain closed during the operation of the device, a proper pressure plug with the appropriate thread, sealing design, and confirmed operating parameters must be used.

How to choose a plastic male thread 1.1/16" UNF blanking plug?

Before purchasing, check if the port to be protected has a compatible internal thread of 1 1/16" size. For typical hydraulic connections, a pitch of 12 threads per inch is used in this size. However, the compatibility of the actual thread must be confirmed before screwing in the cap.

It is also important to check the condition of the thread, available assembly space, and the purpose of the element. The cap is suitable for temporary protection against dirt, but not for operation under pressure.

Assembly and disassembly of the plastic cap

Before assembly, turn off the device, safely depressurize the system, and clean the threaded port. Then, ensure that the size and thread pitch of the blanking plug match the internal thread of the connection being protected.

The cap should be screwed in carefully, without using excessive force. In case of significant resistance, stop the assembly and re-check the fit. Before starting the system, the plastic blanking plug must be removed and the proper working connection must be made.

Various colors – random packaging

Plastic male thread 1.1/16" UNF blanking plugs are available in various colors. Individual color variants are packed and shipped randomly, so the color of the received product may differ from the one shown in the photo.

Color is not the primary criterion for selecting a blanking plug. The most important factors are thread compatibility and the protective purpose of the product.

Technical specification

Parameter	Value
Product name	Blanking plug / threaded plastic cap male thread 1.1/16" UNF
Product type	Protective blanking plug, plastic cap
Thread type	Male – external, inch
Nominal size	1 1/16"
Standard hydraulic thread of this size	1 1/16"-12 UN
Standard pitch	12 TPI (approximately 2.117 mm)
Nominal diameter	26.9875 mm
Material	Plastic
Pressure operation	Not intended to transfer pressure loads
Color	Various colors, packed randomly
Application	Temporary protection of hydraulic connections against dirt

Frequently Asked Questions (FAQ)

What thread does the plastic 1.1/16" UNF blanking plug have?

The blanking plug has an external inch thread of 1 1/16" size. In typical hydraulic connections of this size, a 1 1/16"-12 UN thread is used, but the actual pitch should be confirmed before assembly.

Does the 1 1/16" plastic cap withstand hydraulic pressure?

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

What is the plastic male thread 1.1/16" blanking plug used for?

It is used for the temporary protection of hoses, valves, cylinders, and other components against dirt during transport, storage, assembly, and repair.

Can I choose the color of the blanking plug?

The product comes in various colors that are packed randomly. The color of the delivered cap may differ from the one shown in the photo.

Is the 1 1/16"-12 UN thread the same as UNF?

It is not an identical technical designation. In standard hydraulic connections, the 1 1/16"-12 thread is classified as UN, although in commercial terminology it is sometimes included in the UNF thread group.