براغي رأس أسطوانية 1/2-13 × 1/2" | محرك سداسي برأس زر | ملولبة بالكامل | فولاذ سبائكي مؤكسد حراري أسود (100 / عبوة)

Packed 100 of these in a neat little box, and every single one threaded perfectly into my jig without any binding. The hex socket drive seated snugly on my Allen key, and the thermal black oxide gives them a nice, uniform look that resists smudging. Just what I needed for a precision assembly.

I was pleasantly surprised by how cleanly the button head sits flush in counterbored holes—perfect for tight clearance on a tooling fixture. The black oxide finish looks tough and hasn’t shown any wear after a few days of use.

I needed a hundred of these for a jig I was building, and the hex socket drive made tightening them in tight spots much easier than a standard hex head. The black oxide finish seems durable and gave them a clean, uniform look straight out of the package. Exactly what I needed for precision assembly