CLS-0420-2 | صواميل PEM ذاتية التثبيت #4-20 | فولاذ (50/عبوة)

Installed perfectly into 16-gauge steel sheet metal with zero deformation, and the threads were clean enough to accept a bolt right away. These #4-20 nuts lock in securely for permanent threads that won't strip out over time.

I needed some self-clinching nuts for a steel frame assembly, and these #4-20 threaded fasteners worked perfectly—they locked into place firmly without needing extra tools.

The steel body feels solid, and the #4-20 threads catch cleanly every time I drive a bolt in. I’ve used about a dozen so far on a thin sheet project, and they’ve held tight without spinning loose. This pack of 50 should last me a while.