M24-3×150mm ソケットキャップスクリュー | フラットヘッド六角ソケットドライブ | 部分ねじ | クラス12.9合金鋼サーマルブラックオキサイド (5個/パック)

The black oxide coating is a nice touch, it resists shop grime better than plain steel. These M24 socket heads feel solid, no stripping when torquing them down on my press brake tooling.

Used these to secure a heavy jig fixture and the partial threading made alignment much easier than expected. The hex socket drive seated cleanly without stripping, and the 12.9 alloy steel feels rock solid under load. For the price, these are exactly what you need for precision work.

The black oxide finish on these screws looks professional and held up well during assembly. The flat head sits flush against the metal surface on my tooling fixture, and the partial threads made alignment easy.