M10 X 100mm 內六角肩螺絲 | 內六角頭 | 內六角驅動 | 合金鋼 (25 / 包)

Used one as a pivot for a jig I’m building, and the precision-ground shoulder let it spin true without any wobble. The hex socket drive made torquing them down a breeze, even in a tight spot. These 100mm lengths feel rock solid—definitely ordering another pack for the next project.

The shoulder on these screws is ground so smooth they spin freely in a bearing block I made. For a 25-pack of M10x100mm alloy steel, the price is reasonable and the hex drive bites tight without stripping.

Used one as a pivot for a heavy jig arm and the shoulder fit like it was machined for the bore, zero slop. The hex socket drove cleanly without stripping under torque. Solid buy for the price.