What Grade of Bolt is Required to Install Demco Straight Tongue Coupler DM15000-52

Question

Question:

What grade of bolt is recommended to install a 2” ball coupler to 3” galvanized trailer ?? For the DM 15000 model, 1/2” size, should Stainless steel used?

asked by: Bruce

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Expert Reply:

Hey Bruce, I would go with Grade 8 bolts to install the Demco Straight Tongue Coupler part # DM15000-52. Stainless would be a great choice too but that's not an absolute requirement.

expert reply by: Jameson C

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Answer 1

Best option we have is the part #e98887 for a pin lock for the Demco coupler part #DM15000-52. This has a pin diameter of 1/4 inch and a length of 2-1/2 inches so it will fit tight to your coupler and fit well still.

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Answer 2

Hey Allen, welcome back. Electric over hydraulic brakes are definitely an option here. You can use the current hubs, rotors, brake lines and breakaway. You'll just need the OEH actuator and 7-way install kit. Here is what I recommend: - Hydrastar…

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Answer 3

Hey Kirk, yes the Deutsche Hydrapro CAM Adapter Module for Dexter and Hydrastar Electric Over Hydraulic Actuators #DH64FR would also work with a DeeMax actuator as these adapters are all basically the same thing which is a magnet that gets installed…

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Answer 4

Hello James, thanks for reaching out. Both the kits you mentioned, the Hydrastar #HYD22FR and #HYD42FR are complete conversion kits for standard 3,500 lb axles. The difference is the calipers included with each kit. The #HYD22FR has stainless steel…

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Answer 5

Thanks for the picture of the coupler of your rental trailer. Based on that we know it's a Demco EZ latch so for a lock that will work great securing it to your hitch ball we know the etrailer coupler lock part #e98887 would work well. It fits…

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Answer 6

It does look like we do have a set of replacement brakes for a 12 1/4" x 3 1/2" brake assembly #K23-524-00 Michael, but it uses a 5 bolt flange not a 6 bolt flange. We currently don't have any brakes that use a 6 bolt mounting flange,…

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Answer 7

So what you're looking for is a straight tongue coupler for a 2" ball with a 3" channel that can handle at least 7,500 lbs. For a replacement that fits these requirements we have a few options from Demco. If you want a zinc finish with…

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Answer 8

The Hydrastar Vented Marine Electric Over Hydraulic Actuator for Disc Brakes #HS481-8067 is designed to be completely plug-and-play so the female end of the 7-way would need to connect to the 7-way cable that's already installed on the trailer…

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What Grade of Bolt is Required to Install Demco Straight Tongue Coupler DM15000-52

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