براغي تثبيت سداسية برأس كوبية مع رقعة نايلون 5/16-18 × 1-3/4 بوصة | فولاذ سبائكي (100 / عبوة)

I needed a full 1-3/4" length for a heavy bracket assembly, and the cup point bites nicely into the shaft without stripping. The hex socket drive made it easy to get full torque even in that tight spot.

The nylon patch on these screws held firm even after I cranked them down in an awkward spot, which saved me from having to redo the job. The cup point tip seated perfectly flush with the metal bracket too.

The hex socket drive made tightening these in a crowded panel much easier than a standard screw would have. The nylon patch is doing a great job at keeping them snug against vibration.