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(S211-4) SQUARE HEAD PIPE PLUG 1/4

Description & Features

Manufactured by Midland Industries, the (S211-4) Square Head Pipe Plug 1/4 is a 1/4-inch threaded plug used to seal unused ports and openings in hydraulic and industrial fluid systems. The square head drive style allows for reliable torque application using standard hand tools, making installation and removal straightforward in confined spaces.

This plug is well-suited for blocking off ports on manifolds, valves, cylinders, and similar components where a secure, leak-free seal is required. The 1/4-inch NPT thread size fits a wide range of standard ported equipment used across industrial and hydraulic applications.

SKU: 28085

Supplier Part Number (MPN): 28085

Specifications

Brand Midland Industries	Brand Midland Industries	Pack Size 1.00	UOM EA	Supplier Part Number 28085	Product Weight 0.04 lbs

Product Questions & Answers (2)

Question by: Dwight M on Oct 24, 2025, 11:39 AM

got a 1/4 NPT port on a valve body i need to cap off, is this the right kind of plug?

Answer by: Customer Support on Oct 25, 2025, 3:00 PM

For sealing off an unused 1/4 inch NPT threaded port, this square head pipe plug is the right type. It is made to block ports and openings on things like valves, manifolds, and cylinders so you can get a secure, leak-free seal.

Question by: Terry W on Dec 30, 2025, 9:42 PM

Got a blocked-off port on a hydraulic manifold that needs plugging. Will a 1/4-inch square head plug do the job, or do I need something different?

Answer by: Customer Support on Jan 1, 2026, 6:23 AM

For sealing an unused 1/4-inch NPT port on a hydraulic manifold, this is exactly the right type of plug. The square head design gives you solid tool engagement so you can get a proper torque on it without slipping, which matters a lot in tight quarters where there isn't much room to maneuver. It's made by Midland Industries and fits standard 1/4-inch NPT threaded ports, so it should drop right in without any fuss.