براغي مقبس نقطة كوب M4 × 5mm | فولاذ مقاوم للصدأ 316 (500/عبوة)

I needed a fastener that wouldn't rust near saltwater, and the 316 stainless steel on these set screws is reassuringly tough. The cup point really bites into the shaft, holding everything steady without slipping.

The hex socket drive made these set screws a breeze to tighten in a cramped gear assembly, and the 316 stainless steel gives me confidence they won't corrode. Exactly what I needed for a reliable, long-lasting hold.

Just got these in for a small project and the 316 stainless is noticeably tougher than the cheaper alloy screws I’ve used before. The cup point bites into the shaft nicely, and having 500 in one package means I won’t run out mid-job. Slight annoyance that the hex socket needs a perfectly clean drive