Availability of 1/2 Inch Trailer Hub Studs and Trailer Coupler for 2-5/16 Inch Ball

Updated 02/26/2014 | Published 02/25/2014

Question:

I have trailer hubs with 1/2-13 lug bolts. I would like to change them out with studs and lug nuts for ease of maintenance. My current lug bolts are left hand and right hand threads respectively. I think these are the studs I need but im not sure. Thanx in advance. I have to purchase an 2-5/16 trailer coupler and 200 screws for the deck also.

asked by: Brian A

Expert Reply:

We have only 2 screw-in wheel studs with 1/2 inch diameter. First is # 25-53. It has an overall length of 2 inches, the lug nut end is 1-1/16 inches long fine threaded and the hub end is 13/16 inches long coarse threaded.

Then we have # 25-51 which is also 2 inches long overall. The lug nut end is 7/8 inches long fine threaded and the hub end is 5/8 inches long coarse threaded.

The coarse threaded ends may or may not fit your hub. You would have to test it to see. If they do not fit then you would have to replace the hubs. To replace the hubs I would need to know the inner and outer bearing numbers stamped into the metal of the bearings. I will also need to know the bolt pattern of the wheels, see link.

We have many 2-5/16 inch ball couplers. I have provided a link to them for you. There are many different designs available so I am certain we will have one that will work for your particular trailer set up.

For the screws I recommend a local hardware store because they will have a wider variety in terms of material, length, and design.

expert reply by: Michael H