3/8" X 6" 肩式內六角螺絲 | 內六角頭 | 內六角驅動 | 18/8 不鏽鋼 (25/包)

The precision-ground shoulder on these made my jig build so much smoother—slides through bushings without any wobble. They’re sturdy and the hex drive seats a wrench perfectly.

I needed a long shoulder screw for a custom jig, and these 3/8" x 6" stainless ones slid into the bearing surfaces perfectly with no play. The hex socket drive seated easily with a standard Allen key, and the thread cut cleanly into my tapped hole.

The shoulder on these screws is perfectly smooth, making them ideal for a custom hinge I was building. They're solidly built and the hex drive seated cleanly without stripping.