3/16" (#6) Low Profile Flat Head Tri Bulb Rivets - Aluminum

Aluminum Flat Head Tri-Fold Rivets

3/16" (#6) Blind Rivet Diameter

  • 3/16" or #6 Diameter (Rivet Sizing Chart)
  • Trade Names: Tri Fold Rivets, Bulbing Rivets, Exploding Rivets, Tri Grip Rivets, Trailer Rivets, Expanding Rivets
  • Wildly popular in domestic appliances, plastic components, automotive, trailers, RV, kayaks and sporting goods.
  • Three anchor point grip adds resistance to pull though
  • Wider effective grip range - Excellent as a Multi-Grip Rivet
  • Caulk or sealant is recommended when installing to be truly watertight

Tri-Bulb Rivets expand in three directions as the mandrel is pulled through them, creating three anchor points on the blind end of the application. They have better retention than a standard pop rivet due to their increased surface area. These rivets also work better in thinner metals without causing damage to the materials. Aluminum Tri-Fold Rivets are used for their high strength to weight ratio, and corrosion resistance.

Low Profile Flat Head Tri-Fold Aluminum Rivets create a finished look similar to a standard pop rivet, and do not require any special tools for installation (other than a standard riveter).

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Product Specifications
Additional Sizing Info
Drill (Hole) Size
Flange Diameter
0.430 - 0.455
Head Height
Head Style
Product Type
Low Profile Flat Head Blind Tri Fold Rivet
Rivet Diameter
3/16" (#6, 0.187")
Shear (lbs)
System of Measurement (Unit)
Tensile PSI
Tolerance (IFI)
Actual measurements may vary slightly +/- depending on production run within IFI Tolerances