Button head bolt is a screw with a rounded button-shaped head. These threaded fasteners host a hexagon drive and are tightened using a standard allen wrench or hex key. They are able to be tightened to higher torque specifications than a slotted or cross recessed drive machine screws and feature a lower head profile, which makes them perfect for use where they may snag clothing or other items on moving machinery.
The rounded head of the button screw helps to distribute the load evenly and prevent stripping of the threads. They are available in a variety of materials and sizes to suit a wide range of applications. They are commonly used in the automotive, electronics and machinery industries due to their versatility, raised dome head and durability.
How do you safety wire button head bolts?
A single strand of safety wire can be run around the head. This method is preferable to a double strand because it reduces the likelihood of the wire being pulled through the socket head, which could cause damage and lead to a shorting scenario. button head bolt