براغي ذات رأس أسطواني M8-1.25 × 45 مم | محرك سداسي منخفض الرأس | ملولبة جزئيًا | فئة 10.9 فولاذ سبائكي أسود حراري (100 / عبوة)

The hex drive bites well with a 5mm Allen key, and the black oxide finish hasn't marred during assembly into my jig. They're sturdy for the price, though the 45mm length means you'll need clearance behind the head.

The partially threaded design is perfect for clamping two thick plates without bottoming out, and the hex socket lets me torque them down properly with an Allen key. Class 10.9 hardness means I don't worry about stripping these in my jig setup, and the black oxide coating has held up through a few o

The black oxide finish on these screws looks professional and seems durable. They threaded cleanly into my jig setup without any binding. Exactly the quality I expected for precision work.