براغي ماكينة M4-0.7 X 12mm | رأس بانها فيليبس | فولاذ مقاوم للصدأ 316 (600/عبوة)

Installed these on a sailboat hatch that sees constant salt spray; after three months of exposure, no rust spots at all. The non-magnetic quality was a bonus for working near the compass.

Replaced old rusty screws on my boat's railing with these 316 stainless ones—they're completely non-magnetic and handled the salt water test perfectly. The pack of 600 was way more than I needed, but I'd rather have extras than run short.

Finally got around to replacing some rusted interior screws on my boat hatch with these 316 stainless ones, and they threaded in perfectly without any binding. The non-magnetic property was a nice bonus for the electronics compartment nearby. Exactly what you need for marine use — these won't corrod