These straight style adjustable eyelets have a 0.64” hole diameter and a 3/8” UNF thread which can be used on a booster or in some cases an unboosted brake or clutch master cylinder.

These straight style adjustable eyelets have a 0.64” hole diameter and a 3/8” UNF thread which can be used on a booster or in some cases an unboosted brake or clutch master cylinder.