My 2020 roof mounts used M5 bolts, and small nuts could move while I started the threads. Short button-head screws are part of the purchased hardware behind that type of extrusion assembly.
The drilled connectors and fasteners joining my added extrusion to the roof rack.
The item in my kit
I bought M5 Button-Head Extrusion Screws as part of my camper van equipment.
My 2020 roof mounts used M5 bolts, and small nuts could move while I started the threads. Short button-head screws are part of the purchased hardware behind that type of extrusion assembly.
Where it fits my build
For the light bar, I cut an added extrusion beam and made three short drilled connectors. The rack side used quarter-twenty hardware, while the smaller 2020 extrusion used M5 hardware.
The different nuts changed the assembly sequence. A rack nut had to slide in through an opening, which meant undoing bolts I had already tightened; the smaller nuts could move and spin while I tried to start a bolt. I used an Allen key to reposition them.
The profiles and joint hardware during my roof-mount assembly.
My build notes
The cutting and drilling made the components, but positioning the small hardware took its own time. I recorded the difference between inserting the rack nuts and fishing the smaller nuts into place because it affected how the joint went together.
The profile, connector shape, bolt and slot nut all contributed to the assembly sequence.
Alternative products
Two alternatives to compare
The Rrina set groups screws with slot nuts. The L-connector kit adds plates as well, offering two ways to buy more of the joint hardware together instead of separate screws.
Rrina M5 T-Nut and Screw Assortment
This assortment combines M5 screws with hammer-head slot nuts. Its grouped hardware provides fastening pieces for slotted aluminum-extrusion assemblies.
