M14-2 x 40mm 內六角螺絲 | 平頭內六角驅動 | 全螺紋 | 12.9級合金鋼鍍鋅 (50件/包)

The hex socket drive made tightening these into tight spots much easier than I expected. The 12.9 alloy steel feels solid and the zinc plating looks clean and even across all 50 screws.

Used these to bolt down a steel fixture on my mill table and the hex socket seated perfectly every time, no stripping even at high torque. The 12.9 alloy grade handled the load like a champ, and the zinc finish stayed clean after a few days of cutting fluid exposure. Exactly what I needed for precis

The zinc plating looks even and smooth, so these M14-2 x 40mm screws should hold up fine in my jig setup. The hex socket drive seated perfectly on my driver, and the 12.9 alloy steel feels reassuringly solid.