Flat Head Inch Socket Screws

Flat Head Socket Screws are the fastener of choice in high precision, high strength assemblies requiring a finely tooled appearance.  The V-shaped 82° head allows the screw to be countersunk into the mating surface material, affording a completely flush profile.  Because of their alloy composition and heat treating that they undergo resulting in extremely high tensile and yield strength, a given size of a Flat Head Socket Screw may be comparable in strength to the next larger diameter of a common, low-carbon steel flat head machine screw.  This has the unique advantage of potentially fewer screws needed in a particular design to achieve specific clamp loads.  Fewer screws = lighter assemblies and reduced cost.  It is easy to understand the appeal of this versatile, ubiquitous fastener.