براغي رأس مقبس M2.5-0.45 × 10 مم | محرك مقبس سداسي | ملولبة بالكامل | فئة 12.9 سبيكة فولاذ أكسيد أسود حراري (600 / عبوة)

I use these for jig fixtures in my shop, and the threading is consistently clean and seats perfectly in blind holes. The 12.9 grade alloy steel gives me confidence they can handle the torque without snapping.

Finally, a fastener that doesn’t strip out with the first bit of torque—these little black oxide screws are perfect for my precision fixture. The hex socket drive seats the driver securely every time, and the 12.9 alloy steel feels rigid without being brittle.

Installing these in a small jig I’m building was a breeze—the 10mm length is perfect for thin plates, and the black oxide finish gives them a nice, uniform look. The 600-pack feels like a lifetime supply for my hobby projects.