25 pcs 1/4-20 flat head ribbed body aluminum rivet nuts LFA-14165R Go to amazon.com Related posts The 10 best rivets aluminum 1/4 Feature1/40-20 thread .027-.165 grip range drill hole size 25/64 DescriptionLFA-14165R 1/4-20 flat head ribbed body aluminum rivet nut 25pc bag