براغي ضبط #4-40 × 3/16 بوصة | رأس كوب، نقطة نايلون، مقبس سداسي | فولاذ سبائكي (100/عبوة)

The nylon pellet tip grips threads without galling, which is exactly what I needed for a vibration-prone fixture. All 100 pieces arrived clean and uniform, and the hex socket drive seated perfectly with a standard 5/64" key.

The nylon pellet on these set screws grips well without marring the surface, and the alloy steel body feels sturdy for the price. I used them to secure a knob on a metal fixture, and they haven't backed out at all.

These nylon pellet set screws worked perfectly for a jig I was building where I needed a non-marring tip. The hex socket made it easy to torque them down in a tight spot. Solid quality for the price.