MCTi Bicycle Titanium Tapered Washer Head Allen Hex Bolts Screws Metric M5x16mm 6 Packed (Ti) Size: M5x16mm Allen Hex screws; Color Avaiable: Colorful,Ti,Gold Material: 6AL/4V(TC4)Titanium Alloy,Grade 5; Weight:1.98g/piece. Thread Pitch:0.8mm; Thread Diameter:5mm; Head Diameter:8.00mm; Head Height:5.22mm MCTi Brand Trademark Bolt is with high performance,corrosion-resistant,light weight,high strength. Many applications in sports,mountain bike,motorcycle,automotive,racing,aerospace,medical industry.