براغي رأس أسطوانية M4-0.7 × 15 مم | محرك سداسي داخلي | ملولبة بالكامل | سبائك فولاذية فئة 12.9 مطلية بالزنك (600 / عبوة)

Pulled these out for a jig I was building and the hex socket drive makes tightening them in tight spots a breeze. The zinc plating looks clean and they threaded smoothly into pre-tapped holes.

I needed a bulk pack for repairing some tooling fixtures, and these 12.9 alloy steel screws feel noticeably tougher than standard hardware store ones. The hex socket drive makes them easy to tighten precisely without stripping, which is a huge plus.

These screws fit perfectly into the jig I’m building, and the hex socket drive takes a standard Allen key without stripping. The zinc plating gives them a clean, uniform look that should hold up well in my shop.