Epoxy mount fasteners with pre-primed adhesive surface. The vendor put tamper evident stickers on the bonding surface for inventory tracking. You're not even supposed to touch them there.
LOL The temporary clear plastic frame supports the stud while the special purpose epoxy bonds the stud to the support surface. Anticipated usage includes aviation.
That's what they are and I usually buy them from an authorized distributor but my local marine hardware store had some on their shelves. I would toss them if they were for aviation but these will be attaching a sat compass to a wheelhouse.
The smaller components ship in cell packs. The heavy duty studs come individually wrapped. These 2 inch studs typically ship multiples in a bag. The last round of small studs I bought came individually but with protective covers.
There is a self-retained line that does away with the plastic holder. It reduces waste but I don't like using them because there are no alignment marks.
