براغي رأس سداسي مقاس 1/2-20 × 3-1/2" بوصة | صنع في الولايات المتحدة | فولاذ سبيكة PFC9 مطلي بالزنك الأصفر (25 / عبوة)

These bolts fit precisely into my milling machine's tapped holes without any binding. The yellow zinc coating looks quality and the threads are clean all the way down the 3-1/2 inch length.

The hex heads gripped perfectly with a socket, and the yellow zinc coating looks clean on my press setup. These 3-1/2" screws are solid for equipment assembly without any thread issues.

Used these to bolt down a heavy-duty press in the shop, and the threads cut cleanly without any binding. The hex head gave a solid grip with a socket wrench, which made installation quick. Solid quality for the price.