M24 x 60mm ショルダースクリュー | 六角穴付きボルト | 六角穴ドライブ | 合金鋼 (10本/袋)

The shoulder on these is machined so cleanly that my pivot assembly runs without any wobble—exactly what I needed for a bearing surface. The hex socket drive made torquing them down straightforward, and the alloy steel feels stout for the size.

Installing these as pivot axles on a custom jig, and the precision-ground shoulder made alignment effortless. The socket drive held up perfectly under a torque wrench without any cam-out. Really solid hardware for the price.

I've used these as bearing surfaces for a custom jig and the shoulder on all ten is consistent to the thousandth, so the assembly runs true. The hex drive took a decent amount of torque without stripping, which is more than I can say for cheaper socket screws.