Xpress XP-40073 Hex Cap head Screw 1.6x4mm for Wheel Hexes 10pcs $4.95 / 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. This is Xpress Hex Cap head Screw 1.6x4mm for Wheel Hexes (10pcs), genuine official replacement part from Xpress.