M3-0.5 x 30mm 機械螺絲 | 盤頭十字驅動 | 316不鏽鋼（600件/包）

Installed a dozen of these on my boat's exposed railing fittings and they seated perfectly with my Phillips bit. The 316 stainless feels solid and the pan head sits flush without stripping.

Finally a screw that won't rust on my boat—the 316 stainless is non-magnetic and handled the salt spray perfectly. These M3-0.5 pan heads were a breeze to drive in with a Phillips bit.

Needed a massive batch of marine-grade fasteners for a dock repair project, and these M3 screws fit the bill perfectly. The 316 stainless steel is noticeably non-magnetic, just as described, which gives me confidence they’ll hold up against saltwater corrosion. For a 600-count package, the price per