5 Hole Billet Plain Horn Button This 5-hole horn button is made of aircraft standard 6061 high polished aluminum Has a universal 5-Hole bolt pattern which is compatible with all 5-hole wheels, such as Grant, APC, and NRG Includes 6 Socket Cap Head Screws 10-32x5/8", 6 Socket Cap Head Screws 10-32x7/8", and 1 Spade Horn Wire Diameter: approximately 3.5 inches Height: approximately .70 inches 1.6" Bolt Circle (hole to hole)