براغي آلية 5/16-18 × 1-1/2 بوصة | رأس بيضاوي محرك فيليبس | فولاذ مقاوم للصدأ 316 (100/عبوة)

The threads bit cleanly and seated flush on my trailer frame without any galling. After a month of road salt and rain, the 316 heads still look brand new with zero rust spots, and the non-magnetic property was a nice bonus for my workbench setup.

Installed these on a boat ladder that sees constant salt spray, and the 316 stainless is living up to its billing—no rust after three months in the water. The oval head sits flush without snagging lines or skin.

Used these for a custom dock railing project and they threaded perfectly into pre-tapped holes. The 316 stainless is non-magnetic and feels solid, exactly what you need for coastal exposure.