Earl's 45 Degree Adapter Fitting -4 AN Male to 1/8 in NPT Male - Blue 10249 The holders have a 5/8"

The holders have a 5/8" male RH thread and a 3/8" hole

Akebono is proud to manufacture 100 percent of its aftermarket brakes in the USA

570" ID that works well with our 996

1-3/4 in Tube Mount Bracket Included

Earl's 45 Degree Adapter Fitting -4 AN Male to 1/8 in NPT Male - Blue 10249 The holders have a 5/8"Earl's offers the most complete line of adapter fittings in the industry. In addition to the standard range of AN adapters in both aluminum and steel, over the past 30 years Earl's has designed and manufactured a wide selection of special adapter fittings to meet the needs of the racing industry. These specials include metric to AN, inverted flare to AN and power steering fittings. Product Description: Adapter 45 Degree 4 AN Male to 1 8 in NPT Male