Conical Tooth Washer Placement for Trailer Hitch Installation on a 2010 Toyota Yaris

Updated 01/20/2012 | Published 01/19/2012

Products Featured in This Question

Draw-Tite Trailer Hitch Conical Tooth Washers - 3/8" Diameter - Qty 1

(8)

$4.21

Loctite Blue Stick Threadlocker - Medium Strength - 1/4" to 3/4" Nut/Bolt - 0.32 Oz Stick

(16)

$15.10

Question:

1. The washers appear bowl shaped. Does the bowl top point toward the hitch or the head of the bolt. A diagram would remove any ambiguity in your answer 2. Would thread lock be appropriate in this installation?

asked by: William B

Expert Reply:

The washers that are included with trailer hitch # 24819, are conical tooth washers similar to # 01292006-020-01. You are correct, they are sort of bowl shaped. The tooth end goes towards the hitch. I have included a link to the installation instructions for the hitch.

Using a thread locker like Loc-Tite, # LT37643, can be done but it is not necessary. The conical tooth washer prevents the bolt from backing out.

expert reply by: Michael H