براغي رأس أسطوانية 7/8-14 × 2-3/4" | محرك سداسي | ملولبة بالكامل | فولاذ سبائكي مع أكسيد أسود حراري (10/عبوة)

Installed a dozen of these in a jig plate last week and the black oxide finish made them easy to seat without galling. The hex socket drive grabbed firmly with no stripping, even at higher torque.

Needed a dozen of these for a heavy-duty jig I was building, and the fully threaded length down the whole shank made tensioning everything perfectly straightforward. The hex socket drive seated securely without any wobble, and the black oxide coating gave them a really solid, professional look right

The black oxide finish on these screws looks clean and seems tough enough for my jig fixtures. Fit perfectly into pre-tapped holes without any binding.