M20 X 120mm 肩螺絲 | 內六角頭 | 內六角驅動 | 合金鋼 (10個/包)

Used these for custom fabrication of a jig's rotating axle, and the precision-ground shoulder was spot-on for maintaining alignment. The hex socket drive made tightening effortless with just a standard Allen key, even in a tight assembly. Solid build quality for the price.

Installed these as hinge pins on a heavy gate and the precision-ground shoulder made alignment dead simple. The M20 thread cut smoothly into pre-tapped holes and the socket head gave me plenty of torque to snug them down. For the price, getting ten of these alloy steel screws feels like a steal for

Used a pair of these as pivot pins for a heavy steel jig I'm building, and the hex socket drive made torquing them in a tight spot way easier than a hex head would've. The shoulder is machined smooth enough that the bearing surface spins without any catch. Solid buy for the price.