Midwest Fasteners Solid Brass Countersunk Plug Fitting

Midwest Fasteners Solid Brass Countersunk Plug Fitting

The Midwest Fasteners Solid Brass Countersunk Plug Fitting is a general-purpose brass plug built for sealing off unused ports and openings in plumbing and general fitting systems. This family is available across a range of thread sizes from 1/8" through 3/4" (including 1/8", 1/4", 3/8", 1/2", and 3/4" options), with each size threading into a matching female port and seating flush thanks to its countersunk profile. Machined from solid brass, the plug resists corrosion and stands up to repeated installation and removal, giving maintenance techs and plumbers a dependable way to cap a connection point in whichever size a job calls for. Whether you are closing out an unused branch on a manifold or isolating a line for a pressure test, this plug family gives you a clean, low-profile seal across the full size range.

Key Features

• Size Range: Offered in 1/8", 1/4", 3/8", 1/2", and 3/4" thread connections to match standard fitting ports.
• Material: Solid brass construction throughout every size in the range for corrosion resistance and long service life in plumbing systems.
• Type: Countersunk plug design that seats flush with the surrounding fitting for a low-profile finish on any supported size.
• Application Fit: Built as a general fitting plug for capping unused ports in plumbing runs, manifolds, and branch outlets.
• Durability: Solid brass body withstands repeated threading and removal without rounding threads or corroding over time.
• Consistent Fit: Each size option threads cleanly into its matching female port for a reliable, leak-free seal.
• One Part, Many Jobs: Having each size on the truck means you always have the right plug on hand to close out a connection point.

Technical Specifications

• Refer to manufacturer documentation for complete technical specifications.

Typical Applications

• Capping off unused ports on plumbing fittings and manifolds.
• Sealing a line during pressure testing before final connections are made.
• Closing out a tee or cross fitting outlet that is not currently in use.
• General maintenance and repair work where a brass plug is needed to finish a connection in any supported size.
• Keeping a range of sizes on hand for service calls where the required plug size is not known in advance.

Why Midwest Fasteners?

Midwest Fasteners supplies this solid brass countersunk plug family for techs and plumbers who need consistent sizing and dependable brass construction on every job. The countersunk design gives you a plug that seats cleanly and resists corrosion across the full 1/8" through 3/4" size range, so you can count on it for routine maintenance work, line isolation, and pressure-testing tasks alike. Solid brass construction means the plug can be threaded and removed repeatedly across the life of a system without rounding out or seizing, making it a practical part to keep stocked in every size the job may require.