These aluminum hex standoffs are 0.750in. (19.05mm) 3/4in. long and tapped for a 4-40 screw. These are great for mounting your board in an enclosure, or just getting it up off the table. Sold individually. https://elecena.pl/product/25743124/hex-standoff-aluminum-threaded-4-40-3-4 2024-04-22 https://elecena.pl/product/25743124/hex-standoff-aluminum-threaded-4-40-3-4 2025-04-13