M20-2.5 X 80mm 六角頭螺絲 | 8.8級鋼本色 | 全牙 (25個/包)

These threaded all the way down the shaft, which made aligning the coupling on my press so much easier. The 8.8 steel feels plenty sturdy for the job I needed them for.

The hex head on these M20-2.5 screws grips the socket perfectly without slipping, which made tightening them on a heavy equipment frame straightforward. The 80mm length and fully threaded shaft gave me good engagement depth in the pre-drilled holes. A very solid purchase that delivered exactly what

Used these to bolt down a heavy press at work, and the fully threaded design made it easy to get the right tension. The hex head held up well under a high-torque impact wrench without stripping out.