Overview:
The 3/8 Inch Black Malleable Screwed Plug, model number 31-3/8B, is an essential component for any plumbing or piping system. Designed for durability and reliability, this plug is made from high-quality malleable iron, ensuring it can withstand high working pressures of up to 150 pounds. Its squared head design allows for easy installation and removal, making it a practical choice for both professionals and DIY enthusiasts.

Key Features:
- Size: 3/8 inch, perfect for various piping applications
- Material: Constructed from robust black malleable iron for enhanced durability
- Working Pressure: Rated for steam and water applications up to 150 pounds
- Design: Features a squared head for easy gripping and installation
- Versatile Use: Ideal for plumbing, heating, and industrial applications

Use Cases:
This black malleable plug is perfect for sealing off pipe ends in plumbing systems, ensuring no leaks occur. It is also suitable for use in heating systems where steam is involved, providing a secure and reliable connection. Whether you are a professional plumber or a homeowner tackling a DIY project, this plug is a must-have for your toolkit.