براغي ذات رأس مقبس M12-1.75 × 40 مم | محرك سداسي المقبس منخفض الرأس | ملولبة بالكامل | فئة 10.9 سبيكة فولاذ معالجة حرارياً بأكسيد أسود (50 / عبوة)

The low head profile on these M12 screws saved me on a tight-clearance jig where standard caps wouldn’t fit. The black oxide finish looks uniform across all 50 pieces, and the hex socket drove cleanly without stripping. Solid batch for the price.

Bought these for a custom fixture and the black oxide finish holds up nicely against wrench scuffs. The 40mm length was exact for my spacer stack, and the hex socket seated without any stripped corners.

Needed a low-profile cap screw for a tight spot in a tooling assembly, and the 10.9 alloy steel held up perfectly under 60 ft-lbs of torque without any stripping. The black oxide finish was uniform across all 50 pieces, which gave me confidence in their consistency.