1 Set (10 pcs) CNC Street Fighter Aluminum Motorcycle Windshield Windscreen Bolt Screw Kit Blue Fit For KAWASAKI ZX6R 2007-2012 Bolt color:blue Bolt heads are cold formed and the shanks threads are rolled 60% lighter than steel and 40% lighter than Titanium we ship by USPS first class international(about 2-5 working days delivery). Tensile strength is 0-560Mpa; which is stronger than mild steel