براغي رأس أسطواني 1/4-20 X 3" | محرك سداسي داخلي | حبة نايلون | ملولبة جزئيًا | فولاذ سبائكي مؤكسد أسود حراريًا (100 / عبوة)

Finally found some screws with the nylon pellet that actually stay put during assembly. The hex socket drive makes tightening these into my jig much easier than dealing with a stripped Phillips head.

I needed replacements for a worn set on my indexing fixture, and these lined up perfectly with the existing holes. The nylon pellet gives them a nice locking grip without needing threadlocker, and the black oxide finish looks clean on the tool.

Installed these in a jig fixture I'm building and the hex socket drive made tightening them a breeze with a standard Allen key. The black oxide finish looks quality and the partial threading gave me exactly the grip I needed.