KFB3-440-6 | صواميل PEM ذاتية الثني مقاس #4-40، من الفولاذ (100/عبوة)

Needed a reliable way to fasten a small bracket in a tight spot, and these steel self-clinching nuts worked perfectly—the #4-40 threads grabbed the bolt securely without needing access to the back side. They installed cleanly and held firm under vibration.

Pressed perfectly into the steel chassis with zero distortion — the #4-40 threads cleaned up nicely with a tap. Fits standard bolt sizes exactly as expected, and the 100-pack gives me plenty of spares for future projects.

These #4-40 self-clinching nuts pressed perfectly into the sheet metal without deforming it. The steel construction feels nice and solid for a permanent threaded hole. Exactly what I needed for a tight assembly where a loose nut would be a nightmare.