r/Fasteners

I'm trying to find a source for these tiny washers. Internal diameter 3.5mm. Outer diameter 5mm.

The smallest M3.5 washers I can find have 6mm outer diameters which is unfortunately too large. Similarly the smallest washers I can find with a 5mm outer diameter have a 3mm internal diameter which again is too small.

The one I have is around 0.7mm thick but thickness isn't massively important for my needs.

I've tried searching the usual places for other terms, like washer, shims, discs, rings etc but have been unable to find a match. I've even tried converting the measurements to the nearest imperial measurements but again came up empty handed.

Anyone know where I might find a source for these? or perhaps other names for such an item that I might search for?

As the post says, I'm looking for this particular screw. It came from a Transformer figure I was modifying, but I lost the other screw it came with. I would like a name for said screw and where I can find it.

I have tried looking in Home Depot, Ace Hardware, and Walmart but no dice.

I am ultimately unfamiliar with screws and don't have something that can measure millimeters, so this is the best measurements I can provide. Thank you.

Hi all!

I’m trying to find replacement bolts for an older Herman Miller bed. I ordered standard M6 x 1.0 furniture bolts but it appears the threads for my bed are a coarser 1.5 pitch. The shaft is 20mm long, they take a 5mm hex key, and the head is around 16.75 mm wide.

The new bolt is on the left and the bolt I need is on the right.

Many thanks for all your help. I’m grateful that such a knowledgeable community exists.

I was planning to reusing an old box, but these bolts were in the way. Any idea on how to remove these?