M12-1.75 X 40mm 內六角螺絲 | 低頭內六角驅動 | 全螺紋 | 8.8級合金鋼 (50個/包)

I needed these for a jig I was building, and the fully threaded design made adjustments easy. The hex socket drive gripped well without stripping, even at higher torque.

Class 8.8 alloy steel is exactly what I needed for my jig setup, and these feel solidly machined with clean threads all the way down. Fit the socket drive perfectly and held torque without stripping when I clamped down.

The hex socket drive made tightening these into my tooling fixtures much easier than standard bolts, and the 40mm length was perfect for the jig I was building. Every screw threaded cleanly without any binding, saving me time on assembly.