ERGAOBOY OP-188 1/4-inch BSP Stainless Steel Square-Head Pipe Plugs, 2 Pack

Pack: ERGAOBOY OP-188 is a two-piece set of male 1/4-inch BSP square-head pipe plugs. The listing describes 304 stainless steel construction and gives a stated operating range of 0-2 MPA and 0-180°C, so confirm the thread and system requirements before installation.

At a glance

Male BSP thread and square wrench drive are specified for plugging a compatible pipe connection.
The listing states 304 stainless steel in its feature copy. The details field identifies the material more generally as stainless steel.
The listed operating parameters are 0-2 MPA and 0-180°C. These are manufacturer claims, not independently verified limits.

Price

£5.19Save 20%

Reference price: ~~£6.49~~

Price checked: 12 Nov 2026

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Pros and cons

Pros

Two plugs are listed, useful when more than one compatible connection needs terminating.
The raised square drive provides a stated wrench-engagement feature for installation.

Technical specifications

11 specifications

Identity
Brand	ERGAOBOY
Model	OP-188
Pieces listed	2

Thread and connection
Size	1/4"BSP
Thread size	0.25 inch
Thread type	BSP
Connector type	Plug

Materials and finish
Material listed	Stainless Steel
Colour	Silver

Dimensions and installation
Weight listed	0.2 Kilograms

Operating parameters
Pressure and temperature listed	0-2 MPA, 0-180°C

What to know before buying

Listing details to confirm

The listing gives the nominal size as 1/4"BSP and also states 0.25 inch thread size. It cautions that BSP size is nominal rather than the actual diameter. Confirm compatibility with the mating fitting and applicable system limits. The feature copy specifies 304 stainless steel, while the details list only stainless steel. The stated pressure and temperature ranges are listing claims and are not independently confirmed.

Who is it for?

A good fit for

Buyers seeking a two-piece set of male BSP pipe plugs for compatible pipe or fitting connections.
Installations where a square wrench drive and stainless steel material are desired.

Less suited to

Buyers who need a confirmed actual thread diameter, a different thread standard or independently verified operating limits.

ERGAOBOY OP-188 1/4-inch BSP Stainless Steel Square-Head Pipe Plugs, 2 Pack · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.8 / 5 · 20 ratings

5 stars93%93%
4 stars0%0%
3 stars0%0%
2 stars7%7%
1 star0%0%

Aggregate ratings are strongly positive overall, with most ratings in the five-star category and a smaller two-star portion. With no customer comments supplied, the reasons for either response are unknown. The rating pattern alone does not establish fit, sealing performance or suitability for a particular pressure or temperature.

Frequently asked questions

How many plugs are included?

The listing specifies two pieces.

What thread size is listed?

The size is listed as 1/4"BSP, with a separate thread-size entry of 0.25 inch. The listing notes that BSP size is nominal, not the actual diameter.

What material is the plug made from?

The details identify stainless steel, while the feature description specifies 304 stainless steel. Confirm the precise grade if it is important for your application.

What operating limits does the listing state?

It states 0-2 MPA and 0-180°C. Treat these as manufacturer claims and verify suitability for your system.