براغي ضبط مقبس رأس كروي بحبيبات نايلون 5/16-18 × 1-1/2 بوصة | سبيكة فولاذية (100/عبوة)

I needed these for a fixture adjustment on a milling machine, and the nylon pellet tip gripped perfectly without marring the surface. The alloy steel feels solid, and the hex socket drive handled the torque I applied without stripping.

Finally, a set screw that actually stays put under high torque without stripping. The nylon pellet tip gives just enough grip on the shaft without marring the surface, and the hex drive makes installation in tight spots a breeze. Great value for a full pack of 100.

These cup point screws hold firm once torqued down, and the 1.5-inch length gave me just enough reach in a tight bracket. The nylon pellet does its job without marring the shaft. Only knock is the price per hundred feels a touch steep for the alloy steel.