براغي رأس أسطوانية سداسية M6-1 X 20mm | رأس مسطح محرك سداسي | ملولبة بالكامل | فولاذ مقاوم للصدأ 18/8 (400/عبوة)

I’ve been using these for precision fixturing on a small milling machine, and the flat head sit flush like I’d hoped. The hex drive engaged perfectly with my Allen key without slipping. Good value for a bulk pack of stainless steel.

Needed a bunch for a jig I was building, and these 20mm stainless screws fit perfectly without any binding. The flat head sits flush and the hex socket grabs cleanly every time.

The hex socket drive on these M6-1 screws made installation into my jig so much easier than slotted heads. For a 400-count pack of 18/8 stainless, the price is hard to beat—they're solid and the threading is clean on every single one.