براغي تثبيت برأس مقبب بنقطة كوب مقاس 3/8-16 × 2-3/4 بوصة | فولاذ سبائكي (100/عبوة)

Took a while to find this length in a cup point, and these 2-3/4" set screws finally fit the application. The hex socket drive takes an Allen key cleanly, and the alloy steel threads cut in snug without galling. Pack of 100 means I've got spares for the next job.

I needed set screws that could hold up to vibration in a machinery base, and these alloy steel ones with the cup point grip really lock in place under torque. The hex socket drive makes adjustments quick even when reaching into cramped spots. Worked perfectly for securing a pulley hub.

Finally found a cup point screw long enough for a deep alignment jig I'm building—these 2 3/4" ones fit perfectly. The hex socket drive made it easy to tighten in a tight spot without stripping.