براغي رأس مقبس #1/2-13 × 1-3/4 بوصة | رأس منخفض بمقبس سداسي | سبيكة فولاذ بأكسيد حراري أسود (50/عبوة)

Needed some low-profile cap screws for a tight spot in a tooling setup, and these 1-2-13s fit perfectly with their hex socket drive. The black oxide coating seems durable and hasn't chipped during installation.

Used these on a jig fixture at work and the low head profile cleared a tight spot where a standard cap screw would've hit the guard. The hex socket drove cleanly without rounding, and the thermal black oxide took a bit of handling without wearing off.

The black oxide finish on these screws is holding up well in my tooling setup, no signs of rust yet. The hex socket drive grabbed nicely with my Allen key, and the low head profile let me fit them into a tight spot on my press fixture.