براغي رأس سداسي 7/8-14 × 4" | صناعة أمريكية | درجة L9 سبيكة صفراء مطلية بالزنك | خيط جزئي (15 / عبوة)

These hex bolts fit perfectly into the frame of my heavy-duty press and the yellow zinc coating seems like it will hold up well against grime. The grade L9 alloy steel feels substantial, and the partial threading made installation much easier than a fully threaded bolt would have.

Put these on a large hydraulic press bracket where standard bolts kept loosening. The Grade L9 alloy steel and partial threading held firm under heavy load with no give at all. Exactly what I needed for high-stress assembly work.

I needed some heavy-duty bolts for a press rebuild, and these L9 alloy steel screws handled the torque specs without any sign of stripping. The yellow zinc coating looks solid and the partial threading made alignment easy.