براغي رأس تجويف M20-2.5 X 45mm | محرك تجويف سداسي | خيط كامل | فولاذ سبائك فئة 8.8 مؤكسد أسود حراريًا (25 / عبوة)

Threads were clean and uniform on every single one in the pack, which made seating them in a jig a breeze. The 8.8 alloy steel feels properly stout for the torque I needed to get them snug. These are going straight into my permanent toolbox rotation.

The black oxide finish on these screws looks great and held up perfectly during assembly, no chips or flaking. They fit my fixture’s tapped holes with zero binding, and the hex socket drive made torquing them down easy even in tight spots.

Spent a whole afternoon swapping out the old bolts on a jig fixture and these M20s threaded in cleanly with zero binding. The black oxide finish left no greasy residue on my gloves, which was a nice surprise for a 25-pack at this price point. Solid choice if you're building anything that needs to ho