This listing is for brass threaded M3 spacers. These can be threaded on to M3 rods or socket head screws (sold separately here in my shop) to provide perfect spacing for crystal chamber fins to for custom chassis applications and can even be heated and press fit into a proper sized hole on a chassis for an even stronger fit. Available as a single, three or five pack units in 5mm or 4mm heights. Because of the knurling on these units they catch light extremely well and make for a much more detailed chassis or crystal chamber.
New 3mm units are available. These are 1mm wider than the 4mm and 5mm units as I purchased them to add a bit of variation in the chambers I am designing. Enjoy!
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