براغي ماكينة #4-40 × 1-3/8 بوصة | رأس بانيل، شق مستقيم | نايلون (1000/عبوة)

I’ve been using these nylon screws to mount a circuit board in a metal enclosure, and the non-conductive material works perfectly to prevent shorts. The pan head sits flush enough for tight spaces, and the slotted drive made installation straightforward. For a thousand-pack, these are a solid value

Needed a non-conductive fastener for a plastic enclosure and these 1-3/8" nylon screws fit the bill perfectly. The slotted pan heads seated cleanly with a standard driver, and the whole bag of 1000 arrived with no stripped threads or chips. They're holding strong so far, even with a few re-tightenin

The nylon pan heads are a nice change from metal—they don’t strip or mar the enclosure plastic. I’ve got a whole bag of these now and they thread cleanly with a standard driver, even at that 1-3/8" length.