Pardini Sp .22 grip bolt

Would like to inquire about attaining a bolt for the grip on my Sp. was able to locate similar bolts at a local hardware store but the length was either too short or too long. Any info appreciated. Thank u.

Buy the longer bolt and 2 nuts of the same thread.   Measure the length you want and lock the two nuts together  just short of the final length.  Dremel or hacksaw the bolt to length and then file or sand the end smooth.   Taking the nuts off will chase the threads and make the bolt easier to start.  I usually take the first thread off so that the bolt centers and is much easier to start.

Ok. Appreciate!