What are the specs on the horn bolt?

Discussion in 'Gen 5 Prius Accessories and Modifications' started by Scott_R, Apr 15, 2026 at 7:53 PM.

  1. Scott_R

    Scott_R Member

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    I'd like to upgrade my 2024's single horn to two Hellas. I've found the harness to adapt it, but I can't seem to find the specs for the 90105-A0343 bolt. Any good sources for one that's corrosion resistant? I've seen it at Toyota dealers but the shipping is almost 10x the bolt, and my local dealers only have contact (not purchase) forms for parts, though in a pinch I'll have to do that.
     
    #1 Scott_R, Apr 15, 2026 at 7:53 PM
  2. Georgina Rudkus

    Georgina Rudkus Senior Member

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    It's J.I.S. specification . Either M6x1.0 or M8x1.25 depending on size.
     
    #2 Georgina Rudkus, Apr 15, 2026 at 8:00 PM
  3. mingc

    mingc Member

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    Can't you just order it online, or at the parts counter, for pickup at your local dealer, to avoid shipping costs?
     
    #3 mingc, Apr 15, 2026 at 9:11 PM
  4. Hayslayer

    Hayslayer Active Member

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    Go to Lowes and just buy a stainless one for $4? They have drawers full of them........
     
    #4 Hayslayer, Apr 15, 2026 at 10:07 PM
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