Brass Fittings Square Head Pipe Plug

The Brass Fittings Square Head Pipe Plug is a brass pipe plug (also called a square head plug or bull plug) that seals the end of a threaded pipe or fitting port. The square head gives a flat, secure surface for a wrench, so you can tighten and remove the plug with common hand tools.

Key Features:

• Brass construction: Resists corrosion and holds up in water, air, oil, fuel, and other general-purpose fluid and gas applications.
• Square head drive: Gives a positive wrench grip for installation and removal.
• Tapered male pipe threads: Seal against the mating female port. Pipe thread sealant or PTFE tape is recommended for a leak-free joint.
• Versatile uses: Suited to plumbing, plugging unused ports on manifolds, tanks, and pumps, and capping pipe ends in marine, RV, automotive, and industrial systems.

Brass is durable, easy to work with, and compatible with many common fittings. Together with the simple square head design, this makes the plug a dependable choice for sealing threaded ports. Choose the child variant that matches the thread size you need.