What is Bolt Grade on Main Hinge of SwingKing Bolt-On Swing Tongue Kit # TD88FR
Published 07/08/2026
Question:
Hi. Is the main hinge bolt Grade 5 or Grade 8 ? Thank you
asked by: Dirk
0
Expert Reply:
Hey Dirk, the main hinge bolt of the SwingKing Bolt-On Swing Tongue Kit # TD88FR that you referenced is Grade 5. The bolt has three hash marks on it which means that you add 2 to that and you end up with the Grade. You'd think they'd just match the marks with the grade but that would be too easy.
expert reply by:
Jameson C
0
SwingKing Hinge
(click to enlarge)
(click to enlarge)
Product Page this Question was Asked From
SwingKing Bolt-On Swing Tongue Kit - 3x3 - Galvanized
- Folding Trailer Tongue
- Coupler Hinge Kit
- Bolt-On
- 3 x 3 Inch Tongue
- Swing King
more information >
Featured Help Information
Instructions
Continue Researching
- Q&A: Swing Away Tongue Kit For A 3" x 3" Trailer Tongue
- Q&A: How Far Does Trailer Tongue Slide Into SwingKing Bolt-On Swing Tongue Kit
- Q&A: Replacement Fenders for a Malone EcoLight 1 Kayak Trailer with 4.80-2 Tires
- Q&A: What is the GVRW of the SwingKing Bolt-On Swing Tongue Kit - 3x3 - Galvanized?
- Q&A: Fulton Fold Away Hinge Kit 3x3 Fit on Trailer Tongue that is 7-3/4 inches Long
- Q&A: Option for Extending a 3 inch by 3 inch Trailer Tongue
- Q&A: Can A 12.5' Long Native Water Craft Titan Kayak Be Carried On Malone EcoLight Sport Trailer MAL73FR?
- Article: Boat Trailer Guides: Which are the Best?
- Article: 7 Common Questions Everyone Has About Trailer Tires
- Article: Is It Illegal to Leave My Hitch on My Truck?
- Article: Ball Mount Basics: Weight Capacity, Class, and Size
- Article: Trailer Lighting Requirements
- Article: Trailer Drum Brakes vs. Disc Brakes: Making the Decision
- Article: How to Measure Your Trailer Wheel Bolt Pattern