M20 X 120mm 숄더 나사 | 소켓 헤드 | 소켓 드라이브 | 합금강 (10개/팩)

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.