Availability Of Left-Hand Threading Trailer Lug Bolts
Updated 12/22/2025 | Published 09/29/2024
Question:
Good morning, I own an old snowmobile trailer that requires left-handed threaded lug bolts on the driver side of the trailer. After googling this, it brought me to one of your products, but it does not say whether these are left handed thread. Do you carry something like this?
asked by: John H
Expert Reply:
Hello John, thanks for reaching out. The # RG02-020 Trailer Wheel Bolts you mentioned are right-hand thread. So is every other lug bolt we carry. The left-hand thread is really not used for trailers these days, and it is definitely more of an "old school" design. The thinking back in the day was that wheel bolts had to tighten in a certain direction relative to the direction of the wheel. The fear was that otherwise, the inertia of the wheel would cause the bolts to loosen over time. In recent years we have learned that this is not true, so everything made is now right-hand thread. Your best bet at this point will be to switch out your hubs with something that uses a right-hand thread since parts for this are readily available.
If you can tell me the inner bearing size, outer bearing size and seal size for your hubs I am happy to look into it and see if we have anything for you.
Product Page this Question was Asked From
Trailer Wheel Bolts - 1/2" Diameter x 1" Long - 60 Degree - Qty 4
- Accessories and Parts
- Boat Trailer Wheels
- Trailer Hubs and Drums
- Trailer Tires and Wheels
- Wheel Bolts
- 1/2 Inch Diameter
- Fine Thread
- 1 Inch Long
- Redline
more information >
Continue Researching
- Q&A: Do You Have a 2-inch Square Axle Rated for At Least 3,000lbs and Has Idler Hubs?
- Q&A: 5.30R12 Highway Rated Trailer Tire and Wheel Options for Saltwater Use
- Q&A: Replacement Solera Arms for Awning that Measure 63 inches
- Q&A: Axle Riser Kit for Lippert Axles
- Q&A: Difference Between the Camco RV Vinyl Insert 25212 & 25312
- Q&A: 1/2 X 13 Threads Per Inch Vintage Trailer Wheel Bolts
- Q&A: Replacement Tire For A Carlisle Sport Trail LH 5.30-12 On A Jet Ski Trailer
- Article: Troubleshooting 4 and 5-Way Wiring Installations
- Article: How to Raise Your Travel Trailer Height
- Article: Most Popular Wheel Bearings
- Article: How to Measure for Trailer Hitch Drop
- Article: How to Measure a Trailer Axle
- Article: Best Camper Jacks
- Article: Trailer Wiring Diagrams
Jesse M.
12/22/2025
Hey John, were you able to find the bearing and seal sizes for your trailer hubs? Once you have those details, I can help narrow down a hub that will work with right-hand threaded bolts. Your update could make it easier for others restoring older trailers too.