Washer offers a simple and effective way to protect the surface of fastened parts from load-related damage. They work by increasing the bearing surface area.
When you drive a screw into a set of objects, the head will press against the exposed surface of the parts. If you apply too much torque — or if the parts are made of a soft material — the head of the screw may dig into the parts. A washer offers a solution. It will distribute the load of the screw across a larger area so that damage is less likely to occur. Rather than using a separate washer, however, you may want to use a hex washer head screw.
What Are Hex Washer Head Screws?
Hex washer head screws are threaded fasteners with a hexagonal head and a built-in washer. Like other hex screws, they feature a six-sided head without a drive recess. Hex washer head screws also feature a washer integrated into the underside of the head. You can find them in different materials and sizes, but all hex washer head screws have a hexagonal head and a built-in washer.
Hex washer head screws are commonly used in the following fastening applications:
- Sheet metal
- Roofing
- Heating, ventilation and cooling (HVAC)
- Automotive
- Manufacturing
- Electrical enclosures
Hex Head for Superior Torque
If you’re worried about accidentally stripping the threads due to excessive torque, you may want to choose a hex washer head screw. Thanks to their hexagonal head, they are a popular choice for high-torque applications. Hex washer head screws can handle more torque than other types of screws, such as slotted or Phillips head screws.
Hex washer head screws offer six points of contact for tools like sockets or wrenches. Other types of screws typically offer fewer points of contact, which increases the risk of cam-out and slippage. The tool may slip during installation, stripping the screw’s threads or damaging the surrounding material.
Built-In Washer for Load Distribution
Hex washer head screws feature a built-in washer for better load distribution. All screws are used to fasten multiple parts — and hex washer head screws are no exception. One of their distinguishing features, though, is a built-in washer.
Hex washer head screws offer better load distribution than traditional screws without a washer. The built-in washer spreads the load across a larger area of the parts. Even if the parts are soft or thin, the head shouldn’t sink or cut into the surface.