Bit of a thread necro here, but after a couple hours trying to find a suitable folding D-ring to work with the stock bed bolts without grinding, etc. I finally found these:
JDS "Hinged" Truck Bed Mounted D-Ring Strap Hook "Hinged" Bed Mounted D-Ring Strap Hook<br/>Perfect for tight areas! TIG welded mild steel. 0.75" Thru hole allows for this to be used in any truck! Installs with factory bed mount bolt.<br/><br/>A Perfect compliment to our Ford Raptor Pro Eagle...
offroadalliance.com
Screen grab pic stolen from their website:
And there’s a lot of conflicting info re: the bed bolts out there too. I know they switched to a different head design at some point, but here are the dimensions for the bolts on my 2018 truck (2017 build):
Overall length to bottom of head: 5”
Thread pitch: M12x1.75
Threads run from 1” - 2.75”
Major OD of bolt and washer hole: 9/16” (14.3mm)
Bolt head diameter: 30mm
Mine use the Torx Plus T50 (T50+) size bit; a standard T50 works, but it’s loose in the hole…that’s what she said, LoL
Also, my washers weren’t tack welded or crimped on; just some kind of green adhesive/hard putty on there to hold the washer in place for assembly.