براغي تثبيت بمقبس سداسي برأس كوبي مع حبيبة نايلون 1/2-13 × 1-1/4" | فولاذ سبائكي (100/عبوة)

Installed these in a fixture I'm building and the nylon pellet tip grips the shaft perfectly without marring it. They torqued down effortlessly with a hex key and all 100 pieces were cleanly threaded.

I needed these for a machinery jig where regular set screws kept marring the shaft—the hex drive let me torque them down precisely in a cramped spot. The alloy steel feels tough, and the nylon pellet cups hold firm without deforming the surface.

The nylon pellet tip on these set screws holds firm against shafts without marring them, which is exactly what I needed for a precise adjustment. They torqued down smoothly in tight spots, and the 100-pack is great value for the price.