M2-0.4 X 3mm マシンスクリュー | なべ頭プラスドライブ | 316ステンレス鋼 (1,500個/パッケージ)

The box of 1,500 arrived much heavier than I expected, which made me trust the 316 stainless build right away. I’ve been using them to replace rust-prone screws on outdoor gear, and the non-magnetic property is a real bonus since my tools don’t cling to them.

I needed non-magnetic fasteners for a saltwater aquarium setup, and these M2 pan heads are perfect—no rust after weeks of splashes. The Phillips drive grabs cleanly without stripping at this tiny 3mm length.

Finally, a stainless machine screw that actually stays non-magnetic on the assembly line. Installed a few hundred into outdoor marine electrical boxes and not a single one has shown any rust after three weeks of salt spray. The pan head Phillips drive seats perfectly with a standard driver.