Wanyifa Titanium Ti M6 x 20mm Socket Allen Hex Bolt for Bicycle Disc Brake Caliper Adapter Mount Upgrade pack of 4 Material: 6AL/4V(TC4)Titanium Alloy,Grade 5 Screw Type : M6x 20mm;Thread Diameter : 6mm/ 1/4";Thread Length : 20mm/ 0.8" Thread Pitch : 1mm;Hex Width : 5mm/ 0.2";Weight:3g/Piece;Standard: DIN912 Head Size : 10x 6mm/ 0.4" x 0.24" (D*H);Overall Size : 26 x 10mm/ 1" x 0.4"(L*D) Package Included: 4 x Titanium M6X20 Bolts