براغي رأس سداسي 1/4-20 × 5/8 بوصة | صناعة أمريكية | فولاذ درجة 8 مطلي بالزنك الأصفر | كامل الخيط (300/عبوة)

These threads are rock solid, no doubt about it. The yellow zinc finish is clean and uniform across the whole bag, so they'll hold up well in my shop. A full box of 300 of these Grade 8s means I won't be running out for a long time.

Picked up a pack for bolting down some industrial shelving and was pleasantly surprised by the uniformity of the threading. The yellow zinc coating feels tough and each screw drove in smoothly without a single stripped head.

Used these to rebuild a heavy-duty trailer hitch. The hex heads fit a standard socket perfectly and the yellow zinc coating already seems more corrosion-resistant than the plain steel bolts I had before.