3/8" FNPT M style plugs are made of case hardened steel and are plated to resist rust. The industry standard M style plug has a 1/4" basic flow size and a maximum pressure of 300 PSI. M style plugs offer air flow of 40 SCFM.

Product Features:

• 3/8" female national pipe thread
• Maximum pressure of 300 pounds per square inch
• Air flow of 40 standard cubic feet per minute
• Maximum temperature of 250 degrees Fahrenheit