براغي ذات رأس مقبس بنقطة كوب من النايلون 1/4-28 × 5/16 بوصة | فولاذ سبائكي (100 / عبوة)

I needed a set screw that wouldn't mar the shaft surface, and the nylon pellet cup point on these works perfectly—no galling at all. The alloy steel feels solid, and they tightened up securely in a tight spot with the hex driver. Exactly what I was hoping for.

The hex socket drive made seating these in a tight spot under my mill table a breeze, and the nylon pellet cups bit into the shaft exactly where I needed them. A full hundred in the pack means I won't have to reorder for a long while.

Used a couple of these to lock down a fixture on my mill. The hex socket drive made it easy to get them snug in a tight spot without stripping.