Ingalls Engineering 81250 Alignment FastCam Cam Bolts - 12mm FastCam Camber Adjuster Bolts allow adjustments from -2 degrees to + 2 degrees on most vehicles when one Fastcam Bolt is installed in the upper strut to spindle hole per wheel and -4 degrees to +4 degrees when two Fastcam Bolts are used per wheel. Adjustment range of -1.0 degrees to +1.0 degrees per bolt per wheel Replacement for 12mm strut to spindle bolts only Packaged as 2 bolts, 2 nuts and 2 washers per box Order one or two boxes per axle depending on desired adjustment