M10-1.25 X 50mm 소켓 캡 나사 | 육각 소켓 드라이브 | 부분 나사산 | 클래스 12.9 합금강 아연 도금 (50개/팩)

Perfect fit for the precision jig I was assembling — the hex socket drive made tightening in tight spots easy. The zinc plating looks clean and the 12.9 grade feels rock-solid for the torque I applied.

Used these to bolt down a steel fixture on my mill table and the threads cut cleanly with zero binding. The zinc plating has held up nicely even after a few days of coolant splashing. Class 12.9 strength gives me peace of mind for heavy clamping loads.

Finally, a socket cap screw that doesn't strip under a wrench—the hex socket drive on these bit cleanly every time. The partial threading made aligning my jig plates a breeze, and the zinc coating has held up against light shop grime without a speck of rust.