This small head 10mm handle screw allows you install ZPI tuning handles to Daiwa reels with 12mm head screws. Its hex head is thick and fit well with locking screws of ZPI handles. It doesn't fit well with retainer washers of tuning handles, as lower part of hex head is round and it won't lock with retainer.
Fits to JDM Daiwa Ryoga 1016-2020, JDM Daiwa Z, JDM Daiwa Zillion J Dream.