Hardware, Oils and consumables

 

 

Pan head screws take their name from the appearance of their head, which looks similar to an upside-down frying pan. Pan head screws are a common head type of non-countersunk screw head used where their wide heads, flat bearing surface and slightly domed top surface makes them ideal where  there is a risk of the head being caught in use.

The drive is typically a slot, particularly for wood and self-tapping screws but hexagon sockets are also common for machine screws especially where a decorative fixing is desired.

 

When the head  has a very large diameter, these are often referred to as "button" screw as the head resembles a clothing button. A variation of these is the flanged button type which has a reduced thickness at the circumference.

The flat underside of a pan head screw provides a large mating surface area, which provides a firm hold, even with enlarged holes, and minimises crushing.

 

 
Common sizes are shown below, others are available on request.