NB56L Long Lightning Mount for Rooftop Applications The NB56L Long Lightning Extension Mount is designed for lightning protection attachment applications that require a secure, extended connection point. Designed by NILLWAY®, this stainless steel mount features a waterproof threaded port, 3-inch extension, and 1-inch threaded post for a purpose-built attachment solution. A practical mounting solution for architects, engineers, contractors, and building professionals working with lightning protection systems. https://nillbuildingsolutions.com/product/nb56l-lightning-extension-mount-long/