براغي رأس سداسي M18-2.5 × 130 مم | فولاذ مقاوم للصدأ 316 | ملولبة جزئيًا (10 / عبوة)

The 316 stainless steel feels properly marine-grade, and the partially threaded shaft made aligning the plate much easier than a fully threaded bolt would have. Head size is generous enough for a standard socket without any rounding issues.

The partially threaded section grabbed perfectly in my steel frame while the smooth shank aligned the plates without binding. These 316s are machined clean, no burrs on the threads, and the hex heads seated flush with a standard socket. Solid set for the price.

Used a couple of these on a heavy-duty jig I built, and the 316 stainless is holding up perfectly against some pretty nasty outdoor moisture. The partially threaded length gave me just the right grip depth without needing a washer.