1/2" X 3 1/4" 內六角肩螺絲 | 內六角頭 | 內六角驅動 | 18/8 不鏽鋼 (25個/包)

The precision-ground shoulder made these screws slide perfectly into my jig's bearing surfaces—no binding at all. They’re solid enough to handle repeated use as pivot points in a custom fixture I built.

These screws were exactly the right length for the pivot axle on my latest jig, and the precision ground shoulder slid through the bearing with no resistance. The 18/8 stainless finish looks clean and should hold up well in my shop.

The hex socket drive made tightening these into tight spots a breeze, and the stainless finish looks clean against the steel frame. They’ve held up well so far, no rust or play after a few weeks of use.