Can I Use 5/8" Pins Instead Of Bolts For The Demco Trailer Coupler DM14040-81

Updated 02/17/2026 | Published 06/22/2024

Products Featured in This Question

Demco Trailer Coupler - Cast - Adjustable Channel - eZ-Latch - Black - 2-5/16" Ball - 21K

(670)

$79.94

Fastway Universal Coupler Lock for 1-7/8", 2" and 2-5/16" Couplers - Key 306

(999)

$54.22

Question:

Hi, I am wondering if I can use pins with this Demco coupler on my trailer instead of using bolts with nylock nuts. The reason being is that when Im not using the trailer I prefer to take the coupler completely off to help prevent theft. I have a BandW hitch and several spare 5/8 pins for it. My question is do I really need to bolt the coupler on or could I use those BandW pins? I pull around 10k the hitch is rated for more than that so Im assuming the pins are as well. Im just curious if there is a rule or reason that people always bolt adjustable couplers on. Thanks.

asked by: Lee

Expert Reply:

Hello Lee, that is a good question. We do not recommend using 5/8" pins to hold the Demco # DM14040-81 coupler into the channel. The manufacturer specifies that grade 5 mounting bolts must be used in order to achieve the full 21,000 lb weight capacity. Using pins instead of bolts will reduce the weight rating to an unknown amount, and you will risk equipment failure. Even though you will only be towing around 10K I cannot in good conscience recommend using pins instead of bolts.

For added security, I suggest using a coupler lock, like the Fastway # FA86-0015-306.

expert reply by: Jesse M

Jesse M.

2/17/2026

Hey Lee, how did things go with securing your Demco coupler after switching to the coupler lock? Your update could make it easier for others looking for a theft-prevention option that still keeps the full weight rating.