براغي رأس أسطواني M4-0.7 X 20mm | رأس زرية، محرك سداسي | خيط كامل | فولاذ مقاوم للصدأ 316 (600/عبوة)

Bought these for a couple of marine projects I’ve got going, and the 316 stainless is a big upgrade from the usual 304. The hex socket cuts clean into my Allen keys, and 600 per pack will last through a lot of small fasteners.

600 pieces in one box means I won't be running out mid-project again, and the hex sockets on these M4s grip cleanly without stripping. Used them for a few jigs and the 316 steel feels solid, no rust worry even in my damp shop.

Used these on a saltwater fishing rig I've been building, and the 316 stainless held up perfectly against the spray. The M4 thread cut cleanly into the aluminum frame without any binding. Exactly what I needed for a corrosive environment.