Square U-Bolt Kit Needed for Adding Unistrut to Trailer
Updated 10/30/2025 | Published 02/04/2025
Question:
I need to mount unistrut to my trailer. Do you have square ubolts 3/8 x 1 9/16 at least 5 inches in length with a mounting plate.
asked by: Ron M
Expert Reply:
Hey Ron, thanks for reaching out!
The closest U-Bolt kit we have to the specs you're looking for is the Trailer Square U-Bolts # 382385UB which measure 2-3/8" x 5-1/4" x 3/8". We don't have a massive selection of square U-Bolts though, so if you have to have those exact specs then you might be better off visiting your local hardware or home improvement store to see if they have what you're needing.
What are you planning to use the Unistrut for?
Product Page this Question was Asked From
Trailer Square U-Bolts (Qty 2), 2-3/8" x 5-1/4" x 3/8"
- Boat Trailer Parts
- U-Bolts
- Square U-Bolt
- 3/8 Inch Diameter
- Zinc-Plated Steel
- 5-1/4 Inch Long
- Redline
more information >
Continue Researching
- Search Results: paint
- Search Results: tongue skid
- Search Results: skid
- Search Results: winch
- Search Results: running light
- Search Results: battery operated trailer lights
- Search Results: spare tire mount
- Video: Review of Dutton-Lainson Trailers - Trailer Tipper Latch - DL13353
- Shop: Trailer Tipper Latch by Dutton-Lainson
- Shop: CE Smith Tongue Skid for Pole Tongue Trailers - Galvanized Steel
- Q&A: Dimensions Of The Trailer Tipper Latch by Dutton-Lainson Item # DL13353
- Q&A: Picture of a Tipper Latch Installed on a Tilt Trailer
- Shop: Trailer Square U-Bolts (Qty 2), 2-3/8" x 5-1/4" x 3/8"
- Shop: CE Smith Keel Roller Assembly for 2" Wide Trailer Tongues - Galvanized Steel and Black Rubber
- Shop: CE Smith Winch Stand - Galvanized Steel - 30" Tall x 2" Wide
- Shop: CE Smith Keel Roller Assembly for 3" Wide Trailer Tongues - Galvanized Steel and Black Rubber
- Shop: GloLight LED Trailer Clearance or Side Marker Light - Submersible - 6 Diodes - Round - Red Lens
- Video: In-Depth Review of the PT Power LED Safety Flare w/ 5 Light Patterns
- Q&A: Recommended Solution to Bolt on Safety Chains to Utility Trailer
- Q&A: Is There a Bolt On Bracket For Safety Chains on a Trailer
- Article: Trailer Wiring Diagrams
- Shop: Trailer Hitch
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Shop: Trailer Wiring
- Q&A: Lug Nut Torque Chart for Trailer Wheels
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Video: How to Choose a Trailer Brake Controller
- Shop: Suspension Enhancement
- Article: How to Measure for Trailer Hitch Drop
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
on Boat Trailer Parts
Jon G.
10/30/2025
Hey Ron, were you able to find square U-bolts that fit your trailer the way you needed? Knowing what ended up working could help others looking for a similar size.