M48-5 X 200mm 內六角螺絲 | 內六角驅動 | 12.9級合金鋼

I needed something heavy-duty for a jig I was building, and the 12.9 alloy steel on these is noticeably tougher than standard hardware. The 200mm length was just right, and the hex socket bit seated perfectly without any wobble.

The hex socket drive made torquing these down on a jig much easier than standard allen heads. Class 12.9 alloy steel feels incredibly solid for heavy-duty machinery use. Exactly what I needed for precision assembly work.

Used these for a custom tooling fixture and the hex socket drive made tightening them in tight spots much easier. The 200mm length was perfect for reaching through multiple mounting plates.