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The serrated washer head creates a strong grip
It has a Phillips drive and a fillister head with a slightly rounded top and a flat bottom
Its square head and chamfered edges allow for easy installation and a secure fit
The screw is designed for use in metal and plastic applications
5/16-18 x 3/4 Six Lobe Flat Floor Board Screw Type F Black Phosphate MCT The serrated washer head createsThe 5 16 18 x 3 4 Six Lobe Flat Floor Board Screw Type F Black Phosphate is a strong and durable screw designed for use in flooring applications. It features a six lobe drive that provides a secure grip, reducing the risk of cam out. The flat head sits flush with the surface of the material, providing a clean and professional finish. The black phosphate coating offers corrosion resistance, making it suitable for both indoor and outdoor use. With its
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