Hiro Seiko 48859 Arrow AT1 Ti/Alum Hex Socket Screw Set (Red) $119.95 $129.95 / Tax included. Default Title Default Title Add to Cart Your Email Send This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply. The latest titanium and red alloy screw kit for the Xpress Arrow AT1. This set features 120 individual screws, with red alloy used in lower load bearing areas.