براغي رأس سداسية 1/4-28 × 7 بوصة | صناعة أمريكية | فولاذ درجة 8 مطلي بالزنك الأصفر (300 / عبوة)

Threaded every single one in without a single burr or hang-up, and the yellow zinc finish looks properly even across all 300. The grade 8 hardness is exactly what I needed for the press frame, no flexing under load.

Swapped out the old bolts on my milling machine with these, the hex heads let me get a socket on them easily. They're exactly 7 inches and the yellow zinc finish has held up well so far.

Bought a box of these for a repair job and they’ve held up perfectly under constant torque. The yellow zinc coating is still clean after a week of oily handling, and the hex heads seat deep with a socket every time.