Hex Flange Screws

The flange bolts or screws are usually used in vehicle frames, especially in trucks and anywhere a head bolt is required. They feature a nozzle, thereby speeding the assembly while eliminating the washer. They render four times the bearing area than of a standard hex screw. Some of the flanges have knurls under their head to create more of a locking feature as well as a good way to scratch of the paint in electrical type connections.