براغي ماكينة #4-40 × 1-3/8 بوصة | رأس بان مع شق قيادة | نحاس (100/عبوة)

I needed longer fasteners for a small enclosure and these 1-3/8" brass screws did the trick perfectly. The slotted drive cut cleanly with a standard screwdriver, and the pan head sits flush enough that I didn't have to countersink.

The 1-3/8" length is perfect for getting through a panel and a nut without bottoming out, and the slotted heads cut cleanly with a standard driver. These brass screws have that nice weight to them, not flimsy at all, and the whole bag threaded smoothly on the first try.

The brass finish on these #4-40 screws matches my vintage radio restoration perfectly, and the slotted drive makes them easy to countersink. Threads are clean and sharp, so they started by hand without binding.