What Size Bolts are Used to Install a Trailer Hitch on a 2010 Toyota Matrix

Updated 12/03/2012 | Published 11/21/2012

Products Featured in This Question

Curt Trailer Hitch Receiver - Custom Fit - Class II - 1-1/4"

(29)

$193.42

T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

(69)

$56.04

1-7/8" Hitch Ball - 3/4" Diameter x 1-9/16" Long Shank - Chrome - 2,000 lbs

(2626)

$15.24

2" Hitch Ball - 3/4" Diameter x 1-9/16" Long Shank - Chrome - 3,500 lbs

(2626)

$17.53

Question:

what is the bolt size , 12mm 1.25,1.50,1.75? thanks

asked by: Tim T

Expert Reply:

If you look at the instructions for Curt hitch # 12228 which I have linked for you, the bolt size used is M12-1.25 x 30mm. This is a 12mm bolt. This is the size that fits the factory weld nuts on the 2010 Toyota Matrix. Sometimes the weld nuts can get packed with grime or corrosion and it will seem like the bolts are too large to fit. We have a video and an FAQ article which I have linked for you that shows how to clean out the weld nuts to get the hardware to fit properly.

If you plan on doing some towing with the hitch, it does come with the correct ball mount, hitch pin, and clip. For a 1-7/8 inch ball use # 19256 and for a 2 inch ball use # 19258. For trailer wiring, use # 118460. I have linked instructions for the wiring and videos showing typical installations of the wiring and hitch for you.

expert reply by: Michael H