براغي ذات رأس سداسي 1/4-28 × 1 بوصة | صناعة أمريكية | سبيكة فولاذية من الدرجة L9 مطلية بالزنك الأصفر | كاملة الخيوط (100 / عبوة)

Finally, a hex screw that doesn't strip under full torque – the Grade L9 alloy holds up even in heavy machinery. I used these on a press build and the threads cut cleanly without any binding.

I've used a lot of hex cap screws over the years, and these L9 alloy steel ones with the yellow zinc are noticeably tougher than the standard stuff I usually grab. The 1/4-28 threads are fully cut and drove in clean with a socket.

The threads cut perfectly into my jig plate with zero binding, and the yellow zinc finish looks clean even after a week of shop use. These are my new go-to for anything needing a solid 1/4-28 hold.