9 x 2 1/2 6 lobe Flat w/Nibs Deep Thread Wood Screw Type 17 2/3 Thread Black Oxide KSWSMS It has a 30-degree thread

It has a 30-degree thread angle and is fully threaded

extending the screw's lifespan and enhancing its durability in harsh environments

It is corrosion-resistant and has a black oxide finish for added durability

They have a coarse thread type 17

Its square head and chamfered edges allow for easy installation and a secure fit

9 x 2 1/2 6 lobe Flat w/Nibs Deep Thread Wood Screw Type 17 2/3 Thread Black Oxide KSWSMS It has a 30-degree thread9 x 2 1 2 6 lobe flat with nibs deep thread wood screw type 17 2 3 thread black oxide is a type of screw that is commonly used in woodworking applications. It has a 6 lobe head that is designed to be driven with a hex key, and a deep thread that provides a strong hold in wood. The nibs on the screw help to prevent it from splitting the wood, and the black oxide finish provides corrosion resistance. This type of screw is often used in applications