براغي رأس مقبس M14-2 × 75 مم | محرك مقبس سداسي | ملولبة جزئيًا | فولاذ سبائكي درجة 12.9 بأكسيد أسود حراري (25 / عبوة)

Installed a set of these in a jig fixture I'm building, and the partial threading really helped with alignment before tightening. The 12.9 alloy steel feels noticeably tougher than standard hardware, and the black oxide finish gives them a professional look.

The black oxide finish on these screws handled the moisture in my shop without any rust, unlike cheaper chrome ones I've used. They threaded smoothly into my jig's tapped holes with zero binding. Exactly what I needed for a rigid tooling setup.

Used a set of these to rebuild a fixture table at work, and the partial threading made alignment much easier than with fully threaded bolts. The black oxide finish hasn’t shown a hint of rust after a few weeks of cutting fluid exposure. Price is fair for 25 Class 12.9 pieces, though I did need a lon