براغي رأس سداسية بنقطة كوب مع رقعة نايلون 3/8-16 × 1-3/4 بوصة | فولاذ سبائكي (100 / عبوة)

The cup point bites down securely and the nylon patch keeps them from backing out even with vibration. These set screws are holding a jig fixture solid on my mill table.

The hex drive on these screws made tightening them in a tight spot on my jig frame much easier than I expected. They seated flush and the nylon patch held them securely without any backing out.

These are perfect for locking down a pulley in a tight spot – the cup point really digs in and the nylon patch keeps them from backing out. I must have ordered three different lengths before finding these, and they were exactly what I was looking for.