Flat-Head Machine Screw Dimensions Diagram | Engineering Reference #3461543 (License: Personal Use)

This engineering diagram illustrates a flat-head machine screw with three key measurements: lock length (overall threaded length), head diameter (outer width of the head), and head thickness (height of the head). The side and top views provide spatial context, while the circular top view confirms the flat head profile. These specifications are essential for proper fit, torque application, and material compatibility in mechanical assemblies.

Used in engineering manuals, fastener catalogs, CAD libraries, and technical documentation to convey precise screw geometry; serves users seeking dimensional data for design, procurement, or quality control.