M10-1.5 X 220mm 六角頭螺絲 | 10.9級鋼 原色 | 部分螺紋 (15/包)

Needed longer bolts for a jig I'm building, and these 220mm ones fit perfectly. The hex head grabbed my 13mm socket without any slipping during tightening.

The partially threaded section grabbed the thread cleanly and the 220mm length gave me just enough reach through the mounting bracket. Class 10.9 is clearly the real deal—the hex head took my torque wrench without a hint of stripping.

Finally got these for a heavy equipment repair, and the 220mm length was exactly what the torque spec called for. The hex heads seated perfectly with a deep socket, no stripping at all.