Screw head shapes (profiles)
These side-view diagrams show how common heads relate to the workpiece surface (dashed line). They complement named head types and drive recesses. Thread data belongs in our size chart and identifier tool.
Flat (countersunk)
Cone seats in a countersink; top can be flush with the surface.
Typical uses: flush metal and wood assemblies, hinges.
Oval
Countersunk seat with a crowned top—decorative, slightly proud of flush.
Typical uses: trim, visible door hardware.
Binding
Low head with curved underside—often used where snagging must be minimized.
Typical uses: electrical covers, thin stacks.
Pan
Flat or slightly domed top, rounded transition—sits above the surface.
Typical uses: general machine screws, sheet metal.
Round
Full dome; more height than a typical pan.
Typical uses: decorative or older equipment styles.
Truss
Very wide, shallow dome—large bearing surface, low shadow.
Typical uses: thin sheet, cladding, wide holes.
Cheese
Tall cylindrical head with flat top and vertical sides.
Typical uses: European hardware, machine design.
Fillister
Tall cylindrical head—often used with a counterbore.
Typical uses: precision fits, depth-limited pockets.
Related tools & charts
FAQ
What is the difference between head type and head profile?
Head type names the style (e.g. pan, hex). Head profile is the side-view geometry showing how the head sits relative to the part surface—flush, above, or countersunk.
What does a countersunk head look like in profile?
A straight cone from the bearing surface to the shank, often 82° or 100°, so the head can sit flush with a matching countersink.
Why choose truss vs pan profile?
Truss spreads load over a wider, lower dome; pan is smaller in diameter and often taller relative to width—pick based on bearing area and clearance.
Where do I find thread sizes after choosing a head shape?
Use the Universal Screw & Bolt Size Chart or Thread Identifier with measured diameter and pitch.
For more head style photos and context, see CDE Fasteners: common fastener heads.
Also read
Reference: Screw head types, Screw drive types
Guides: Bolt vs Screw, Thread Pitch Explained