براغي رأس سداسي 7/16-20 × 1-1/2 بوصة | صناعة أمريكية | سبائك فولاذ L9 بزنك أصفر | ملولبة بالكامل (50 / عبوة)

Used these to rebuild a press at work and the hex head let me torque them down evenly with a socket—no rounding issues. The yellow zinc finish looks clean and should hold up better than plain steel.

Had to replace some bolts on a hydraulic press, and these L9 alloy steel heads took the torque without stripping. The yellow zinc coating is a nice touch for resisting shop grime.

Picked these up for a jig fixture I’m building, and the yellow zinc finish on the Grade L9 alloy steel feels much more corrosion-resistant than the cheap hardware at the big box store. Full threading made them bite cleanly into the tapped hole without any binding, even with a socket driver.