1/4-20 x 1" 滾花杯點內六角止付螺絲 | 合金鋼鍍鋅 (100 / 包)

I was replacing some worn-out screws on a jig and these fit perfectly—the hex socket drive made adjustments a breeze in a cramped spot. The zinc plating looks clean and should resist rust better than the old ones.

The knurled cup point really grips onto the shaft without slipping, and the hex socket makes installation a breeze even in awkward spots. I've already used half the bag for various jigs and fixtures, and they're holding tight with no issues.

I needed a set screw that would bite into a shaft without stripping, and the hex socket drive on these lets me really crank them down in tight spots. The zinc plating looks clean and should resist rust in my shop. Exactly what I needed for a stubborn pulley repair.