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What Grade Bolts to Install Demco A-Frame Cast Head Coupler  

Updated 06/19/2025 | Published 09/11/2024

Question:

Looking at coupler 16854-81 What grade bolts should be used?

0

Expert Reply:

Hey Rylan,

I checked with Demco for you, and the Demco A-Frame Cast Head Coupler # DM37ZR will need Grade 5 hex bolts for installation. We don't have these but they can be found at any local hardware store.

expert reply by:
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Kyle S
Daniel profile picture

Daniel

6/18/2025

Can you tell me the bolt size

Robin H. profile picture
Etrailer Expert

Robin H.

6/18/2025

@Daniel 1/2" grade 5 bolts.
Daniel profile picture

Daniel

6/19/2025

@RobinH thanks

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