M8 X 20mm ショルダースクリュー | ソケットヘッド | 六角穴 | 合金鋼 (25 / パッケージ)

Used these as pivot pins for a jig I'm building and the hex socket drive made tightening them into tight spots a breeze. The ground shoulder slides through the bearing surface without any wobble, exactly what I needed.

Used a couple of these as pivot points in a small jig I built, and the precision-ground shoulder made everything spin smoothly. The hex socket drive was a nice touch for tightening without stripping. Only issue was the heads are slightly taller than I expected.

Ground these down slightly for a custom axle project and the precision-ground shoulder made alignment much easier than with regular bolts. The hex socket drive fit my Allen key perfectly, though I wish they came with a few extras for that price.