The Qualfast 5/16UNCx2.1/4 Hex Head Bolt A2 is designed to provide reliable fastening solutions for a variety of applications. Crafted from high-quality A2 stainless steel, this product ensures durability and resistance to corrosion, making it suitable for both indoor and outdoor use. The hex head design allows for easy installation and removal, providing convenience for users. Ideal for construction, automotive, and general maintenance tasks, this bolt offers strength and stability, ensuring that your projects are securely held together. Features: Grade: F593 Thread Size: 5/16 Surface Treatment: Plain Material: Stainless Steel Driving Features: Hexagon Head Shape: Hexagon Head Length: 2.1/4in Material Grade: A2 Thread Direction: Right Hnd Thread: UNC Standards Met: ASME B18.2.1, BS 1768 Applications: - Ideal for securing machinery components in industrial settings. - Suitable for use in automotive applications, such as engine assembly.