What Is The Knurl Diameter Of The RG03-080 Wheel Stud?

Question

Question:

Hi , I need to know the dimensions of the knurled part of RG 03 080 both diameter and distance to the threads from the cap. thanks, pat

asked by: Pat I

0

Expert Reply:

Hello Pat. The Replacement Trailer Hub Wheel Stud # RG03-080 has a .545" knurl diameter. The distance from the cap to the threads is 1-3/16".

expert reply by: Jesse M

0

Jesse M.

2/17/2026

Hey Pat, did those measurements for the trailer hub wheel stud give you what you needed? Knowing how it worked out could help others checking fit on the same part.

Pat I.

2/17/2026

@JesseM No they did not. i did find some that worked though, although I'd be happier if i tacke them in place from the back!

Jesse M.

2/17/2026

@PatI Ah sorry to hear that. Glad you found something that did work though. And yea a few tack welds could definitely grant some peace of mind but as long as your lug nuts stay torqued to spec you shouldn't need to worry about it too much.

Answer 1

Thank you so much for the picture and the dimensions, that is exactly what I needed to find you a replacement stud. I recommend the Trailer Hub Wheel Stud - Drive In - 1/2" Diameter x 2" Long item #7-122. I have attached a diagram showing…

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Answer 2

Based on what you listed you are looking the part #RG03-080 would be the best option that we offer. This is 1/2 inch in diameter, is 2-3/4 inches in length, and the knurl diameter is .54 of an inch.

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Answer 3

If your current hubs use lug bolts as opposed to lug nuts, you'll need to continue to use lug bolts. If you're wanting to switch to a hub that uses studs and lug nuts, it might be possible. If you could reply with the lug bolt pattern (number…

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Answer 4

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 5

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Answer 6

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Answer 7

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Answer 8

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Answer 9

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Answer 10

It sounds like you are speaking of the wires for the brake magnets. If this is correct, you will need to connect one of the wires to the brake controller output wire on your trailer connector and the other wire will need to be grounded to a clean…

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Answer 11

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Answer 12

The difference between an load range C and load range D tire in the same size is the capacity and psi rating. The two tires will still have the same dimensions and fit on the same wheel. The D rated tire has a higher capacity. For a ST175/80D13 like…

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What Is The Knurl Diameter Of The RG03-080 Wheel Stud?

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