Midwest Fasteners Solid Brass Square Head Pipe Plug Fitting

Midwest Fasteners Solid Brass Square Head Pipe Plug Fitting

The Midwest Fasteners solid brass square head pipe plug is built to seal off unused threaded ports in plumbing runs, manifolds, valves, compressors, and tank openings. Machined from solid brass, this general fitting features a square head that gives a wrench a secure, positive grip for tightening and removal without rounding off the corners or marring the surrounding fitting. This family is available in 1/8", 1/4", 3/8", 1/2", and 3/4" thread sizes, letting plumbers, maintenance techs, and fabricators match the plug to the exact port that needs to be closed off, and the solid brass construction resists corrosion in both water and air service, making it a dependable choice for long-term use on threaded assemblies.

Key Features

• Size Range: Available in 1/8", 1/4", 3/8", 1/2", and 3/4" thread sizes for use in standard female-threaded ports and fittings.
• Material & Finish: Solid brass construction throughout for reliable corrosion resistance in plumbing, compressed air, and general fitting applications.
• Head Configuration: Square head design provides a positive wrench grip for tightening and removal without rounding off, unlike slotted or hex-recess plugs that can strip under heavy torque.
• Product Type: Brass general fitting plug suited to sealing unused ports across a wide range of plumbing and fitting assemblies.
• Thread Engagement: Standard tapered pipe threads seat securely into matching female-threaded ports for a dependable, leak-resistant seal.
• Versatility: One family spanning five common thread sizes simplifies stocking and port selection across multiple jobs and assemblies.

Technical Specifications

• Refer to manufacturer documentation for complete specifications.

Typical Applications

• Capping unused ports on manifolds, tanks, and compressed air or water lines.
• Sealing off test ports during plumbing system commissioning or pressure testing.
• Closing off a branch line that is being decommissioned or reserved for future use.
• General maintenance and repair work on threaded brass fitting assemblies.
• Plugging unused outlets on valves, pumps, and compressor manifolds.

Why Midwest Fasteners?

Midwest Fasteners supplies solid brass fittings with consistent thread sizing and square head configurations that hold up to repeated wrench use on the jobsite. Offered across the full 1/8" through 3/4" range, this brass square head pipe plug gives plumbers, maintenance techs, and fabricators a dependable way to seal threaded ports without compromising the corrosion resistance or sizing accuracy their assemblies depend on. Consistent brass quality across the size range means techs can stock one family of plugs and trust the fit every time.