5/8-11 X 5" 套頭螺絲 | 六角套件驅動 | 部分螺紋 | 316 不鏽鋼 (10 個/包)

I was skeptical about how snug these would fit, but the 316 stainless steel feels solid and the hex drive is really smooth. Used them for a jig setup and they held perfectly without any corrosion worries.

The partially threaded design made all the difference when I was bolting a thick steel plate to a fixture—the threads gripped perfectly while the smooth shank aligned everything cleanly. These 316 stainless screws feel solid and corrosion-resistant, no rust worries even after sitting in my damp shop

Was a bit worried about the threading being too tight, but these 316 stainless screws seated perfectly in my jig fixture. The 5" length and partial thread gave me just what I needed for a clean hold.