uxcell M5x18mm TC4 Titanium Road Mountain Bike Cycling Headset Screw Kits Product Name : Hex Socket Tapered Head Bolts;Material : TC4 Titanium;Color : Silver Tone Screw Type : M5x 18mm;Thread Diameter : 5mm/ 3/16";ThreadLength : 18mm/ 0.7" Thread Pitch : 0.8mm;Hex Width : 4mm/ 0.16" Head Size : 8 x 5mm/ 0.3" x 0.2" (D*H);Overall Size : 23 x 8mm/ 0.9" x 0.3"(L*D) Weight : 2g;Package Content : 1 x Hex Socket Tapered Head Bolts