براغي رأس سداسية 3/8-24 × 3-1/2 بوصة | صناعة أمريكية | درجة L9 من سبائك الفولاذ مطلي بالزنك الأصفر | ملولبة جزئيًا (50 / عبوة)

These bolts torqued down exactly as needed for a heavy-duty jig I’m building, and the partial threads gave me just the right grip depth. The hex heads fit a standard socket perfectly.

The yellow zinc coating is flawless across all fifty heads, and threading each one into my jig felt buttery smooth. They’re pricey, but the grade L9 alloy steel gives me confidence these will outlast the machine they’re holding together.

I’d been hunting for bolts that wouldn’t snap under heavy torque, and these partially threaded 3/8-24s held tight during my equipment repair. That Grade L9 alloy steel feels noticeably tougher than the usual hardware store stuff, and the yellow zinc coating hasn't shown a hint of rust after a wet we