Tribulb rivets offer superior holding power due to the large footprint created on the blind side. Tribulb rivets are perfect for fastening thinner materials together and are oversized hole tolerant. Constructed of Aluminum the first column below gives the rivet number, the material it is made of, shank diameter, and grip range.
Example: 523TB-A – 5/32'' .039-.276
- 523TB – is the tribulb number
- A – represents the material the tribulb is made of, in this case A stands for Aluminum
- 5/32’’ – is the diameter of the shank of the tribulb
- .039 - .276 – is the grip range of the tribulb (the minimum and maximum thickness of material the rivet will fasten)