براغي رأس كبس مقاس 2-1/2-4 × 6 بوصة | محرك سداسي | ملولبة بالكامل | فولاذ سبائكي مع أكسيد أسود حراري

The hex socket drive seated perfectly on my driver, and the thermal black oxide coating looks like it belongs on serious shop equipment. Used them to rebuild a jig for a router table, and they torqued down smooth without stripping.

The thermal black oxide finish has held up perfectly through a couple of weeks in my shop, no rust or flaking so far. Threads are clean and the six-inch length is exactly what I needed for my fixture build.

Finally got around to using these in a jig for a metalworking project and the hex socket drive made installation a breeze with my T-handle. The fully threaded length gives plenty of grip in thick steel plate.