M16 X 50mm 杯形點螺絲 | 18/8 不鏽鋼 (50 入/包)

These M16 cup point screws held tight in my machinery rail despite heavy vibration, and the stainless steel hasn't shown a hint of rust after a month in a damp shop. I appreciate that the 50-pack gave me spares for future adjustments.

The hex socket drive let me torque these down snugly in a spot where a wrench would never fit, and the cup point bit firmly into the shaft without slipping. Threads ran smooth and clean straight out of the bag, and the stainless finish looks solid.

These set screws tightened up perfectly on a machine guide rail where I needed serious grip in a tight spot. The hex socket drove smoothly without any stripping, even torqued down hard. Cup point bit in just as expected with these stainless steel fasteners.