The AN525-10R8 is an Aeronautical Standard (AN) aircraft machine screw used in general aviation airframe and interior assemblies. It belongs to the AN525 series, which defines washer-head / truss-head style screws designed to provide a larger bearing surface for load distribution in thin sheet-metal applications.

This specific variant is typically:

Thread: #10-32 UNF (fine thread)
Length: 1/2 inch (0.500")
Head: washer / truss-style head (integrated bearing surface)
Drive: Phillips cross recess
Material: cadmium-plated steel (corrosion-resistant aviation hardware)
It is commonly used in aircraft interior panels, brackets, access covers, avionics installations, and light sheet-metal structures, where a stronger #10 fastener with improved load spreading is required.

Key features include:

AN (Aeronautical Standard) aviation fastener
Washer-head / truss-head design for improved load distribution
#10-32 UNF thread
1/2" length
Steel construction with corrosion protection
Designed for vibration resistance in aircraft environments
Common in FAA-certified maintenance and OEM installations