8081-N-0440 | فواصل مستديرة Amatom #4-40 X 1/2" | نايلون (200 / عبوة)

Used these to mount a small sensor board inside an enclosure, and the nylon threads cut cleanly without stripping. The half-inch length gave just enough standoff for the solder joints underneath. Pack of 200 means I've got plenty left for future builds.

Just finished a small PCB project and these nylon standoffs did exactly what they needed to—the 1/2" length gives plenty of clearance under the board. I’ve already ordered another pack, the threads fit snugly with a #4-40 screw.

The threads are clean and consistent, so all 200 of them screwed onto my boards without a single cross-threaded fight. The nylon's got just enough give that I didn't worry about cracking the PCB when I snugged them down.