براغي مقبس نايلون 1/4-28 × 1/4 بوصة نقطة كوب | فولاذ سبائكي (100 / عبوة)

The hex socket drive really comes in handy for adjusting these in tight spots. The cup point tip holds well without slipping, and the alloy steel feels solid. Exactly what I needed for my jig.

I needed a set screw that wouldn't mar the shaft, and these alloy steel ones with the nylon pellet cup point are perfect—they bite firmly without leaving marks. The hex socket drive feels solid, and the 100-pack means I won't run out mid-project.

The nylon pellet cups hold tight without marring the surface, which is a huge plus for adjustable fixtures. I used about a dozen on a jig setup and they haven't budged under vibration.