1/4-20 X 4" 機械螺絲 | 圓頭一字驅動 | 普通鋼 (200個/包)

The threads on these 4-inch screws are clean and consistent, which made driving them into a heavy workbench frame a breeze. I needed a full 4-inch bite into the wood, and these plain steel truss heads provided exactly that without any stripping.

These truss heads sit flush without digging into wood, and the 4-inch length is perfect for securing thicker brackets on my workbench. For 200 plain steel screws at this price, they're exactly what I needed for indoor projects where rust isn't a worry.

The truss head sits flush on my jig without catching, and the slotted drive works fine with a standard screwdriver. I used them to fasten a fence bracket to a workbench, and the 4-inch length gave plenty of bite into the lumber.