Recommended Torque for Tightening Curt Hitch Balls to Ball Mount
Updated 12/11/2025 | Published 03/10/2015 >
Question:
What is the recommended torque when mounting to ball mount
asked by: John J
Expert Reply:
Curt recommends the use of 250 ft/lbs of torque when tightening the nuts of their hitch balls with a 1 inch diameter shank like the part # C40034 that you referenced.
The general rule is for a 3/4" shank tighten to 150 ft/lbs For a 1" shank tighten to 250 ft/lbs, and for a 1-1/4 inch shank 450 ft/lbs.

Greg
12/11/2025
Follow up question, I have a Curt 2 5/16 ball, 11/4 inch shank, is the torque spec 450 ft/lb dry or with lubricant or antiseize? Thanks, Greg

Product Page this Question was Asked From
2" Hitch Ball - 2" Rise - 1" Diameter x 2-1/8" Long Shank - 6,000 lbs
- Trailer Hitch Ball
- Trailer Hitch Ball
- High-Rise Ball
- Chrome-Plated Steel
- 6000 lbs GTW
- 2 Inch Diameter Ball
- 2-1/8 Inch Shank Length
- 1 Inch Diameter Shank
- CURT
more information >
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Wayne F.
6/13/2024
Does this also apply to stainless steel ball hitches?