1/4-20 x 3" 육각 머리 볼트 | 미국산 | PFC9 합금강 황색 아연 도금 (100 / 팩)

Pulled a few of these out for a jig I’m building and the threads cut clean with zero binding, even with a socket wrench. The 3-inch length gives plenty of grip for thicker brackets, and the hex head seats nicely in tight spots. Solid batch for the price.

The yellow zinc finish on these bolts is holding up perfectly in my slightly damp workshop, no rust after a week. I’ve already used a dozen to secure a motor mount, and the threads catch cleanly every time.

Finally, hex bolts that don't strip after one use—the PFC9 alloy feels noticeably tougher than the hardware store stuff. I used them to mount a steel bracket, and the yellow zinc coating looks solid too.