MCTi MTB Mountain Bike Bicycle Disc Brake Ti Titanium Bolts Screw Upgrade Kit for Hope Shimano Hayes Magura Formula with 12 pcs M5x10 and 8 pcs M6x20 Material: 6AL/4V (TC4) Titanium Alloy, Grade 5 Usage: Standard Disc Brake Hubs Package Include: 12 Pieces M5x10mm bolt for bike disc brake cycle rotor, 8 Pieces M6x20 Bolt with washer head for disc brake adapter mount. MCTi Brand Trademark Bolt is with high performance, corrosion-resistant, light weight, high strength and durability functions. Original Brand Packed. Many applications especially in sports, mountain bike, bicycle, motorcycle, automotive,racing, aerospace, medical industry and DIY areas.