Cap Screws Button Head Socket Cap Screw in 18/8 stainless steel delivers dependable, corrosion-resistant performance for a wide range of assemblies. With a 3/8-16 UNC thread and a length of 2-1/2 inches, these screws are ideal for machinery, automotive applications, enclosures, and outdoor projects where strength and longevity matter. Material: 18/8 stainless steel (304) for excellent corrosion resistance and durability. Head style: Button head for a clean profile and reduced snag risk. Drive type: Socket drive for a recessed, streamlined appearance. Thread size: 3/8-16 UNC standard thread. Length: 2-1/2 inches. Applications: Machinery assemblies, automotive components, control panels, and outdoor equipment where a strong, corrosion-resistant fastener is required. Ensure you select the correct length and thread pitch for your project, and pair with compatible nuts or tapped holes as needed.