M10-1.5 x 120mm 六角頭螺絲 | 18/8 不鏽鋼 | 全螺紋 (25 個/包)

These went into a dock rebuild where everything else was getting wet, and a month later there's still no rust spotting on the heads. The 120mm length gave me plenty of thread past the nut, so no fiddling with washers to get a tight clamp.

The threads on these are cut clean the whole way down, so no fighting with a die when you're assembling thick lumber. Stainless means they won't rust on my deck project either. Ordered 25, got exactly 25, all straight with sharp hex heads.

These went into the frame of a trailer I'm welding up and the 120mm length gives plenty of thread past the nut. Stainless means no rust streaks after a season of road salt too. Torqued down clean with no galling or stripped heads.