MCTi Mountain MTB Bike Water Bottle Cage Titanium Allen Hex Tapered Head Bolts Screw M5x12mm Washer Head 4 Packed Colorful Size: M5x12mm Allen Hex Tapered Head; Color Available: Colorful,Gold,Ti Material: 6AL/4V (TC4) Titanium Alloy, Grade 5; Weight: 1.9g/piece. Thread Pitch: 0.8mm; Thread Diameter: 5mm; Head Diameter: 8.5mm; Head Height: 5mm; Key Size: 4mm; 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.