REAR BRAKE CALIPER MOUNTING BOLT ( 2 BOLTS ). 40% LIGHTER THAN STANDARD STEEL BOLTS, 50% MORE STRENGTH, CAN ALSO BE TORQUED TO OEM BOLT SPEC. FLANGED HEX head bolts Titanium GR5 grade. M10 AND M12 FINE PITCH SOCKET CAP HEAD BOLTS, ALL BRIGHT ZINC PLATED GRADE 8:8.