Value Collection 4SQ1/4 Square Head Pipe Plug 1/4 in Mnpt

Product Description

The VALUE COLLECTION 4SQ1/4 is a 1/4 inch square head pipe plug rated for 150 psi service in threaded pipe systems. Machined from 304 stainless steel, it features a male NPT (MNPT) threaded end connection that seals open pipe ends in fluid, gas, and hydraulic line applications. The square head drive allows installation and removal with a standard open-end or adjustable wrench. Plumbers, pipefitters, and HVAC technicians use this type of plug to cap test ports, unused branch connections, and service taps during pressure testing or permanent decommissioning of a line segment.

This plug is suited for residential and light commercial piping installations where a corrosion-resistant, non-reactive fitting material is required. 304 stainless steel is commonly specified in potable water, food-service, chemical, and outdoor environments where carbon steel would be susceptible to rust or contamination. The 1/4 inch MNPT thread size fits standard schedule pipe and fittings of the same nominal size across a wide range of piping systems.

Key Features

• 304 stainless steel construction resists corrosion in wet, outdoor, and chemically active environments
• 150 psi pressure rating suitable for standard service piping applications
• 1/4 inch MNPT threaded connection for direct installation into female NPT ports and fittings
• Square head drive accepts open-end, box, or adjustable wrench for controlled installation torque
• Compact, low-profile plug design for tight or congested pipe runs

Compatibility

Designed as an OEM-style replacement and general-use fitting for 1/4 inch female NPT threaded ports in standard 150-class piping assemblies.

Installation Notes

Installation should be performed by a licensed plumber or qualified pipefitter following applicable IPC or IFGC code requirements for the service type. Depressurize and isolate the line before removing or installing any threaded fitting. Apply an appropriate thread sealant or PTFE tape to the MNPT threads before installation to ensure a leak-free seal. Do not over-tighten; use a calibrated torque wrench or follow fitting manufacturer guidelines where published.