1/2-13 x 7/16" 平頭內六角止付螺絲 | 合金鋼 (100 顆/包)

I needed some set screws for a tight jig adjustment on my drill press, and these flat-point ones grabbed perfectly without marring the shaft. The hex socket drive made it easy to get them snug even in that cramped spot.

These little alloy steel screws held up through my whole machine rebuild without a single stripped head, and the flat point seated exactly where I needed it in that tight adjustment slot. For a hundred pieces at this price, the hex socket drive is crisp and the threads cut clean every time.

Used these for a jig fixture that gets constant adjustment, and the alloy steel is holding up great under the hex drive torque. The flat point seats nicely without chewing up the workpiece.