5/16-18 X 2" 六角凹頭螺絲 | 平頭六角驅動 | 合金鋼鍍鋅 (1000/包)

The hex socket drive on these screws makes them so easy to set with an allen wrench, even in tight spots. For a thousand pieces at this price, the zinc plating looks uniform and the threads are clean. My jigs have never held together better.

I was pleasantly surprised how cleanly these flat heads countersink into wood for my jig project. The zinc coating looks uniform and should resist rust well in my shop.

The hex socket drive made tightening them in tight spots on my milling fixture a breeze, and the zinc finish looks clean. Threads cut cleanly into pre-tapped holes without any binding, which I appreciated. Definitely a solid value for a thousand-pack.