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Recommended Safety Chains for New Coupler and 1/2 Inch Bolts

Question:

I am installing a new coupler on my utility trailer. How do I attach the safety chain? My bolts are 1/2inch OD on the threads, but my old 3/16inch chain wont fit over it. What chains, or attachment hardware do you have to make my chain fit?

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Expert Reply:

For a 1/2 inch bolt, you will normally need a chain that has a 5/16 inch link diameter like # 49150. To utilize your current chains, I recommend simply changing your hardware and using Grade 8 bolts that fit your chains using the largest size that will fit your links with appropriate washers and locknuts. This will obviously require drilling additional holes.

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