براغي مقبس بلاستيكية من النايلون بطرف كروي 3/8-24 × 1 بوصة | فولاذ سبائكي (100 / عبوة)

After fighting with a stuck fastener in my milling machine's T-slot, I swapped in these set screws and the hex socket drive made cinching them down a breeze. The cup point tip seats perfectly without slipping, and the alloy steel feels solid in hand.

The nylon pellet tip is a lifesaver for positioning without marring the shaft, and the alloy steel body torqued down firmly even in a cramped spot. A full 100-count box means I'm set for a good while on these.

The hex socket drive let me torque these down in a cramped bracket without any camming out, and the nylon pellet bit into the shaft perfectly. Exactly what I needed for a permanent hold on a stepper motor pulley.