براغي رأس مقبس M4-0.7 X 40mm | محرك مقبس سداسي | ملولبة جزئياً | فئة 8.8 فولاذ سبائكي أكسيد أسود حراري (400/عبوة)

Used a handful of these on a jig I'm building, and the hex socket drive made installation quick even in tight spots. The partial threading gave me just enough grip without extra bulk.

The black oxide finish on these screws is really uniform and clean, making them look great on my jig setup. Fit perfectly into pre-tapped M4 holes without any binding.

The black oxide finish on these screws looks really clean against my machine's frame, and the hex socket makes tightening them in tight spots much easier than a standard hex head. I used a full pack for a precision assembly and every one threaded smoothly without any binding.