HOLO-KROME 64070 براغي ذات تجويف 3/8-16 X 7/8" | رأس زرّي سداسي التجويف | فولاذ سبائكي مؤكسد أسود حراري (50 / عبوة)

The black oxide finish on these screws looks great and resists rust well in my shop. They seated perfectly in my precision assembly fixture without any wobble. For the price, you get a solid batch of fasteners that hold up under repeated use.

Used these for a jig I was building and they seated perfectly with a hex key, no stripping or wobble. The 3/8-16 thread is solid on these alloy steel ones, and the black oxide gives them a nice uniform finish that should resist a bit of shop grime.

The black oxide finish on these screws held up perfectly during a recent fixture assembly, no galling at all on the hex drive. They seated flush into the tapped holes without any binding, which saved me time on a tight deadline.