Value Collection 4SQ1/8 Square Head Pipe Plug 1/8 in Ss

Product Description

The VALUE COLLECTION 4SQ1/8 is a 1/8 inch square head pipe plug constructed from 304 stainless steel with a male NPT (MNPT) threaded connection. It is rated for 150 psi service and is designed to seal off open pipe ends, unused ports, and threaded fittings in piping systems. The square head drive allows a wrench to achieve a secure, leak-free installation. Plumbers, pipefitters, and HVAC technicians commonly use this type of plug during pressure testing, system commissioning, and permanent port closure applications.

This plug is suited for use in residential and light commercial piping systems where a small-diameter, corrosion-resistant closure fitting is required. The 304 stainless steel construction makes it appropriate for applications where mild corrosion resistance is needed, including water supply lines, compressed air systems, and general industrial piping where an MNPT threaded plug is specified.

Key Features

• 1/8 inch MNPT threaded connection for standard pipe thread fitment
• 304 stainless steel construction provides corrosion resistance in wet and humid environments
• 150 psi pressure rating suitable for water, air, and low-pressure fluid systems
• Square head design accepts standard open-end or adjustable wrench for positive torque engagement
• Compact size for use in tight installations and crowded manifold assemblies

Compatibility

Designed as an OEM-style replacement or new-installation fitting for any 1/8 inch MNPT threaded pipe port in residential or commercial piping systems rated at or below 150 psi.

Installation Notes

Installation is performed by licensed plumbers or qualified pipefitters following applicable IPC and IFGC code requirements for the system type. Apply thread sealant tape or pipe dope rated for the service fluid before threading the plug into the fitting. Hand-tighten first, then use a wrench on the square head to snug the connection — do not overtighten, as this can crack fittings or strip threads. Depressurize and drain the system before removing or installing any threaded plug fitting.