5/16"-18 Socket Head Cap screws, Alloy Steel w/ Thermal Black Oxide, Coarse Thread

5/16"-18 Socket Head Cap Screws Alloy Steel with Thermal Black Oxide Coating – High-Strength Screws Our 5/16"-18 Socket Head Cap Screws are meticulously crafted from premium alloy steel and feature a thermal black oxide coating. This finish provides a sleek black appearance and offers a protective layer against corrosion and abrasion, ensuring longevity and reliability. Designed for robust applications, these screws are perfect for both professional and DIY projects that demand strength and durability. The deep socket head design facilitates high torque installation, ensuring a secure and stable fit. The alloy steel composition combined with the thermal black oxide coating delivers exceptional durability and performance in various environments, including indoor and light outdoor applications. These fasteners are designed to withstand harsh conditions, making them ideal for demanding projects. Note: PT = Partial Thread Key Features High Strength: Alloy steel construction provides exc