Skip to the beginning of the images gallery

Metric Countersunk Sealed Plug

Description & Features

Manufactured from steel, this M26 x 1.5 Metric Countersunk Sealed Plug is designed to close off unused metric-threaded ports in hydraulic circuits. The countersunk profile allows the plug to seat flush or recessed within a port face, making it well suited for installations where clearance or a clean external profile is a consideration.

Supplied by Adaptall, the plug features a male M26 x 1.5 metric thread and measures 21.1mm in length with a 32mm CH width across flats for wrench engagement. Steel construction provides the durability expected in hydraulic system maintenance and port-blocking applications.

SKU: 9029-26X1.5

Supplier Part Number (MPN): 9029-26X1.5

Specifications

CH Width 32mm	L Length 21.1mm	Adaptall Material Steel	Adaptall Shape Plug	Side 1 Callout M26 X 1.5	Side 1 Gender M	Side 1 Size 26mm	Side 1 Type Metric	Brand Adaptall America	Brand Adaptall	Pack Size 1.00	UOM EA	Supplier Part Number 9029-26X1.5	Product Weight 0.20 lbs

Product Questions & Answers (3)

Question by: Ricky S on May 26, 2025, 9:55 AM

got a port with M26 x 1.5 threads. is this plug the right one to block it off?

Answer by: Customer Support on May 27, 2025, 12:37 PM

For an M26 x 1.5 metric threaded port, the fit matches since the plug has a male M26 x 1.5 thread. It is made for closing off unused metric threaded ports in hydraulic circuits.

Question by: Hank G on Jul 17, 2025, 12:54 PM

I'm just trying to make sure I get the right size... this is for a M26 x 1.5 port, right?

Answer by: Customer Support on Jul 19, 2025, 6:42 AM

that's correct. This countersunk plug has a male M26 x 1.5 metric thread, so it'll fit your M26 x 1.5 port as long as it's a standard metric thread.

Question by: Ralph C on Mar 7, 2026, 6:47 PM

What's the thread size on this plug, and will it seat flush instead of sticking out past the port face?

Answer by: Customer Support on Mar 9, 2026, 6:51 AM

Male M26 x 1.5 is the thread on this one. The countersunk profile is what makes it sit flush or even slightly recessed into the port face rather than protruding outward. That low-profile fit is really the whole point of the countersunk design, keeps things clean where clearance is tight or where a protruding plug would get in the way.