M6-1×100mm 六角穴付きキャップスクリュー | フラットヘッド六角ドライブ | 部分ねじ | クラス10.9合金鋼 亜鉛メッキ (100本入)

The hex socket drive seated perfectly on my driver with zero wobble, and the zinc plating looks clean and even across all 100 pieces. I used them to mount a jig plate and the partially threaded shank held alignment without any binding.

The partially threaded design made aligning these socket cap screws in my jig fixtures a breeze. Once seated, the hex socket drive gave a solid, wobble-free grip without stripping.

Finally, a hex bolt that’s the exact length I needed for jig assembly—no more grinding down shorter ones. The zinc plating looks clean and the socket drive holds the bit securely without stripping.