M5 was the small thread family in my roof-extrusion notes. This fender-washer purchase adds a wider contact option within that same general hardware size.
The drilled connectors and fasteners joining my added extrusion to the roof rack.
The item in my kit
I bought binifiMux Black M5 Fender Washers as part of my camper van equipment.
M5 was the small thread family in my roof-extrusion notes. This fender-washer purchase adds a wider contact option within that same general hardware size.
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 stainless M5 pack offers another flat-washer form. Glarks supplies a range of metric sizes in one assortment instead of a single wide M5 pack.
M5 Stainless Flat Washers
These M5 flat washers are small stainless-steel discs with a central hole. They sit around a fastener shank between the head or nut and the adjoining surface.
