threaded TB Series BSP General-Purpose Plug TB Series plugs are designed to protect British Standard Pipe fittings from contaminants and damage while providing protection for delicate threads. These easy to use plugs can be tightened with a screwdriver, hex wrench, or manually. TB Series plugs meet lowpressure testing requirements. Material: Linear Low-Density Polyethylene Color: Yellow TH Series Hex Socket Threaded Plugs TH Series plugs are designed to protect internal threads during low-pressure testing and in-plant process. Safely keeps contaminants and moisture from threaded ports. Oil and heat resistant to 250°F. Not intended for permanent applications. * Hex design socket for installation and removal * Protects NPT threaded * Keeps ports clean Material: High-Density Polyethylene Color: Black TM Series Metric General-Purpose Plugs TM Series plugs are designed to protect metric threads from damage and contaminants. A knurled head and screwdriver slot allow for easy installation and removal. Available in a range of sizes. Material: Linear Low-Density Polyethylene Color: Yellow 134 * For other material and color options, contact customer service.