براغي كاب مقبس 1-8 × 3-1/4" | محرك مقبس سداسي | رقعة نايلون | ملولبة بالكامل | فولاذ سبائكي أسود حراري (10 / عبوة)

I needed heavy-duty fasteners for a jig I’m building, and these fully threaded screws with the nylon patch held tight through the whole assembly process. The black oxide finish feels more durable than the standard zinc I used before.

Used these for a jig on my milling machine and the nylon patch held tight under heavy vibration. The thermal black oxide finish is a nice touch—looks solid and resists scuffs well.

Finally got around to installing these in a jig I was building, and the hex socket drive made tightening them into tight spaces much easier than I expected. The black oxide finish looks solid and professional, and they threaded in smoothly without any binding.